{"id":4145,"date":"2026-10-08T15:37:58","date_gmt":"2026-10-08T15:37:58","guid":{"rendered":"https:\/\/www.tgsteels.com\/high-speed-steels-hss\/1-3343-m2\/"},"modified":"2026-10-08T15:37:58","modified_gmt":"2026-10-08T15:37:58","slug":"1-3343-m2","status":"publish","type":"page","link":"https:\/\/www.tgsteels.com\/en\/high-speed-steels-hss\/1-3343-m2\/","title":{"rendered":"3343 PRIME"},"content":{"rendered":"[vc_row type=&#8221;full_width_background&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; video_bg=&#8221;use_video&#8221; video_mp4=&#8221;https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero.mp4&#8243; video_webm=&#8221;https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero.webm&#8221; video_ogv=&#8221;https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero.ogv&#8221; background_video_loading=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; parallax_bg=&#8221;true&#8221; parallax_bg_speed=&#8221;fast&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/2&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;450&#8243;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h1>3343 PRIME <span style=\"display:block;font-size:.5em;line-height:1.35;margin-top:.4em\">(1.3343, HS6-5-2, X90WMoCrV6-5-4-2, W6Mo5Cr4V2, \u2248SKH51, BM2, M2)<\/span><\/h1>\n[\/vc_column_text][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;50&#8243;][\/vc_column][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/2&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h4>Remelted High Speed Steel with high wear resistance associated with good toughness<\/h4>\n<\/div>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<p>3343 PRIME;<\/p>\n<ul>\n<li>is an electroslag remelted <em>(ESR)<\/em> high-speed steel that allows it to obtain very high cleanliness and a very fine structure, which improves its toughness.<\/li>\n<li>has very high wear resistance associated with high hardness and good toughness<\/li>\n<li>shows good suitability for surface treatments such as gas, ionic or salt bath nitriding, as well as PVD or CVD coatings.<\/li>\n<\/ul>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Applications<\/h3>\n<p>3343 PRIME can be used for: fine cutting tools <em>(punches and dies)<\/em>, cold or semi-hot forming tools <em>(punches and dies)<\/em>.<\/p>\n<p>3343 PRIME can be used for cutting tools as drills, milling cutters, taps, dies, spindles, reamers, thread rolling combs, segments for circular saws, etc. and also shear blades, cold working cylinders.<\/p>\n<p>3343 PRIME can be used for cavities and injection sills of plastic molds and in some cases for hot work tools due to its high hot hardness.<\/p>\n<p>3343 PRIME is also used for all kind of parts in contact with highly abrasive materials as porcelain.<\/p>\n<\/div>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Main properties<\/h3>\n<ul>\n<li>Excellent wear resistance<\/li>\n<li>Good toughness<\/li>\n<li>High hardness<\/li>\n<li>High compressive strength<\/li>\n<li>High hardenability<\/li>\n<\/ul>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Chemical composition <em>(typical)<\/em><\/h3>\n<\/div>\n<table>\n<thead>\n<tr>\n<th>C<\/th>\n<th>Mn<\/th>\n<th>Si<\/th>\n<th>P<\/th>\n<th>S<\/th>\n<th>Cr<\/th>\n<th>Mo<\/th>\n<th>V<\/th>\n<th>W<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0.90<\/td>\n<td>\u2264 0.40<\/td>\n<td>\u2264 0.45<\/td>\n<td>\u2264 0.030<\/td>\n<td>\u2264 0.030<\/td>\n<td>4.15<\/td>\n<td>4.95<\/td>\n<td>1.90<\/td>\n<td>6.30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"max-width:680px\">\n<h3>Designation<\/h3>\n<\/div>\n<table>\n<thead>\n<tr>\n<th>Werkstoff Nr<\/th>\n<th>ISO<\/th>\n<th>China GB<\/th>\n<th>JIS Japan<\/th>\n<th>UK<\/th>\n<th>AISI USA<\/th>\n<th>Russia Gost<\/th>\n<th>AFNOR<\/th>\n<th>Other \/ Special<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1.3343<\/td>\n<td>HS 6 5 2 \/ X90WMoCrV 6-5-4-2<\/td>\n<td>W6M5Cr4V2<\/td>\n<td>\u2248SKH51<\/td>\n<td>BM2<\/td>\n<td>M2<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Comparison HSS grades<\/h3>\n<\/div>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p><img decoding=\"async\" class=\"wp-image-4108\" src=\"https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-hss-comparison-table.png\" alt=\"Comparison of HSS grades 3343, 3243, 3247 (conventional) and TPM M4, TPM M42, TPM23, TPM30, TPM60 (PM steel) on a 10-dot scale for hot hardness, wear resistance, toughness, machinability (annealed) and grindability; 3343 scores 5, 5, 6, 10 and 7 dots\" width=\"1016\" height=\"380\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-hss-comparison-table.png 1523w, https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-hss-comparison-table-300x112.png 300w, https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-hss-comparison-table-1024x383.png 1024w, https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-hss-comparison-table-768x287.png 768w\" sizes=\"auto, (max-width: 1016px) 100vw, 1016px\" \/><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Structure<\/h3>\n<p>The structure of the 3343 PRIME is fine and homogeneous without precipitation or alignments of big carbides. The carbide distribution and the micro cleanliness are controlled and in conformity with the Stahl-Eisen Werkstoff Blatt 1570 \/ 61 standard.<\/p>\n<p>The austenite grain size is determined on the surface of the specimen according to Snyder-Graff method. The minimum permissible values <em>(average of 10 measurements)<\/em> before tempering are given below.<\/p>\n<\/div>\n<table>\n<thead>\n<tr>\n<th>Section <em>(mm)<\/em><\/th>\n<th>Austenitic grain size<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0 &#8211; 25<\/td>\n<td>12<\/td>\n<\/tr>\n<tr>\n<td>25 &#8211; 50<\/td>\n<td>11<\/td>\n<\/tr>\n<tr>\n<td>50 &#8211; 125<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>&gt; 125<\/td>\n<td>9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"max-width:680px\">\n<h3>Hardness at the time of delivery<\/h3>\n<p>Annealed for 300 HB max.<\/p>\n<\/div>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Physical properties<\/h3>\n<\/div>\n<table>\n<thead>\n<tr>\n<th>Temperature<\/th>\n<th>20\u00b0C<\/th>\n<th>350\u00b0C<\/th>\n<th>700\u00b0C<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th>Volumic mass kg\/m\u00b3<\/th>\n<td>8120<\/td>\n<td>7930<\/td>\n<td>7725<\/td>\n<\/tr>\n<tr>\n<th>Young Modulus N\/mm\u00b2<\/th>\n<td>217000<\/td>\n<td>198000<\/td>\n<td>175000<\/td>\n<\/tr>\n<tr>\n<th>Thermal conductivity W\/m.K<\/th>\n<td>27.5<\/td>\n<td>26.1<\/td>\n<td>26.1<\/td>\n<\/tr>\n<tr>\n<th>Coefficient of linear expansion 10<sup>-6<\/sup>\/K<\/th>\n<td>10.8<\/td>\n<td>12.2<\/td>\n<td>13.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Heat treatment<\/h3>\n<h4>Soft annealing<\/h4>\n<p>Temperature: 780 &#8211; 850\u00b0C, duration 1h + 1h for 25 mm thickness. slow cooling in the furnace <em>(10 to 20\u00b0C\/h)<\/em>. The atmosphere in the furnace must be reducing to avoid decarburization of the steel.<\/p>\n<h4>Stress relieving<\/h4>\n<p>After machining, it is recommended to perform stress relieving at 600 &#8211; 650\u00b0C for a minimum of 2 hours, followed by slow cooling in the furnace to 450\u00b0C.<\/p>\n<h4>Austenitization<\/h4>\n<p>In order to avoid any risk of cracking it is recommended to preheat in 3 steps.<\/p>\n<ul>\n<li>1st preheating step: temperature: 500\u00b0C time: 30 s\/mm of thickness<\/li>\n<li>2nd preheating step: temperature: 850\u00b0C time: 30 s\/mm of thickness<\/li>\n<li>3rd preheating step: temperature: 1050\u00b0C time: 30 s\/mm of thickness<\/li>\n<\/ul>\n<p>Recommended austenitizing temperature: 1130 &#8211; 1230\u00b0C. The holding time should not be too long to avoid a risk of grain coarsening and a loss of toughness. It is recommended to keep the part at the austenitizing temperature 30 minutes per inch of thickness as soon as the temperature of the surface reach the austenitization temperature.<\/p>\n<h4>Quenching medium<\/h4>\n<p>Oil at 80\u00b0C, vacuum <em>(pressure&gt; 6 bars)<\/em>, salt bath 500 &#8211; 550\u00b0C.<br \/>\nTo ensure good toughness, treatment with oil or salt bath is preferable.<br \/>\nAfter quenching the hardness is 63 &#8211; 65 HRC<\/p>\n<h4>Sub zero treatment<\/h4>\n<p>For parts that need to have high dimensional stability and to increase wear resistance without reducing toughness, it is recommended to perform a subzero treatment at a temperature between -70\u00b0C and -190\u00b0C for 1 hour for 25 mm of thickness of the part. The temperature range from -70\u00b0C up to -120\u00b0C <em>(named cold treatment of steel)<\/em> leads to the complete transformation of austenite into martensite and as a consequence to better stability associated with improved hardness and better wear resistance. On the 3343 PRIME such a treatment leads to an increase of 100% of the wear resistance <em>(wear ratio)<\/em>.<\/p>\n<p>The temperature range from -135\u00b0C down to -190\u00b0C <em>(named cryotreatment of steel)<\/em> leads also to the complete transformation of austenite and also the precipitation of ultrafine carbides improving a lot the wear resistance without modification of the toughness and on 3343 PRIME such a treatment leads to an increase of 200% of the wear resistance <em>(wear ratio)<\/em>.<\/p>\n<h4>Tempering<\/h4>\n<p>To ensure a minimum residual austenite rate as well as greater tool stability, it is essential to perform a double <em>(triple is better)<\/em> tempering. Each tempering is followed by a cooling under 100\u00b0C.<\/p>\n<p>Each tempering time must be at least equal to 1h + 1h for 25 mm of thickness of the treated part <em>(equivalent thermal thickness)<\/em>.<\/p>\n<\/div>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<p><img decoding=\"async\" class=\"wp-image-4109\" src=\"https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-tempering-curve.png\" alt=\"3343 PRIME tempering curve: hardness (HRC) versus tempering temperature (380 to 660 \u00b0C) for the curves labelled 1200, 1180, 1160 and 1100 \u00b0C, with peak hardness of about 67 HRC around 540 \u00b0C\" width=\"520\" height=\"439\" loading=\"lazy\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-tempering-curve.png 667w, https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/10\/3343-prime-tempering-curve-300x253.png 300w\" sizes=\"auto, (max-width: 520px) 100vw, 520px\" \/><\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Surface treatment<\/h3>\n<h4>PVD, CVD<\/h4>\n<p>3343 PRIME is suitable for all kinds of PVD and CVD treatment as soon as the treatment temperature is 30\u00b0C lower than the last tempering temperature.<\/p>\n<h3>Polishing<\/h3>\n<p>3343 PRIME could be polished in the treated state and can be used for applications requiring a sufficiently polish level for translucent parts. Optimal polishing is achieved by performing consecutive steps of fairly close roughness and stopping each step as soon as the last scratch of the previous step disappears.<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;60&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h3>Machining<\/h3>\n<p>The machining parameters below are given for information only and must be adapted according to the equipment and usual machining conditions.<\/p>\n<h4>Grinding in annealed conditions<\/h4>\n<\/div>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th colspan=\"2\">Carbide insert<\/th>\n<th>Solid tool<\/th>\n<\/tr>\n<tr>\n<th><\/th>\n<th>Rough machining<\/th>\n<th>\u00bd Finishing<\/th>\n<th>Finishing<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th>Cutting speed m\/min<\/th>\n<td>110 &#8211; 130<\/td>\n<td>125 &#8211; 160<\/td>\n<td>40 &#8211; 50<\/td>\n<\/tr>\n<tr>\n<th>Feed mm\/r<\/th>\n<td>0.35<\/td>\n<td>0.15<\/td>\n<td>0.01 &#8211; 0.1<\/td>\n<\/tr>\n<tr>\n<th>Depth of cut mm<\/th>\n<td>2 &#8211; 3<\/td>\n<td>1 &#8211; 1.5<\/td>\n<td>0.01 &#8211; 0.1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"max-width:680px\">\n<h4>Turning in annealed conditions<\/h4>\n<\/div>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th colspan=\"2\">Carbide insert<\/th>\n<th>HSS tool<\/th>\n<\/tr>\n<tr>\n<th><\/th>\n<th>Rough turning<\/th>\n<th>Finishing<\/th>\n<th>Turning<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th>Cutting speed m\/min<\/th>\n<td>110 &#8211; 140<\/td>\n<td>165 &#8211; 200<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<th>Feed mm\/r<\/th>\n<td>0.35<\/td>\n<td>0.15<\/td>\n<td>0.1- 0.2<\/td>\n<\/tr>\n<tr>\n<th>Depth of cut mm<\/th>\n<td>2 &#8211; 3<\/td>\n<td>1 &#8211; 1.5<\/td>\n<td>0.5 &#8211; 2.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<h4>Drilling in annealed conditions<br \/>Carbide drill<\/h4>\n<\/div>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>Insert<\/th>\n<th>Solid<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th>Cutting speed m\/min<\/th>\n<td>130<\/td>\n<td>70<\/td>\n<\/tr>\n<tr>\n<th>Feed mm\/r<\/th>\n<td>0.10<\/td>\n<td>0.20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"max-width:680px\">\n<h4>HSS twist drill<\/h4>\n<\/div>\n<table>\n<thead>\n<tr>\n<th>Drill diameter mm<\/th>\n<th>Cutting speed m\/min<\/th>\n<th>Feed mm\/r<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>&lt; 5<\/td>\n<td rowspan=\"4\">11<\/td>\n<td>0.07<\/td>\n<\/tr>\n<tr>\n<td>5 &#8211; 10<\/td>\n<td>0.15<\/td>\n<\/tr>\n<tr>\n<td>10 &#8211; 15<\/td>\n<td>0.22<\/td>\n<\/tr>\n<tr>\n<td>15 &#8211; 20<\/td>\n<td>0.30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"max-width:680px\">\n<h4>Fine grinding<\/h4>\n<p>General indications for grinding wheels to be used on 3343 PRIME in the heat treated condition<\/p>\n<p>Usually, rather soft vitrified aluminum oxide grinding wheels <em>(grades G for plane grinding to K for cylindrical grinding)<\/em> are used.<\/p>\n<p>Particular attention will be paid to effective cooling of the surface during grinding to prevent degradation of the material surface.<\/p>\n<h4>Electro-discharge machining<\/h4>\n<p>3343 PRIME is also suitable for EDM machining <em>(wire or electrode)<\/em>. Preferably, the machining will be carried out with a low current density and a high frequency in order to limit the thickness of the white layer as much as possible.<\/p>\n<p>Then it is necessary to carry out a stress relieving at 25\u00b0C below the last tempering in order to reduce the level of residual stresses <em>(which could lead to a risk of cracking)<\/em> and to carry out a polishing to completely remove the white layer formed during the discharge machining process.<\/p>\n<h3>Welding<\/h3>\n<p>3343 PRIME cannot be welded.<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;120&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<div style=\"max-width:680px\">\n<p><a href=\"https:\/\/www.tgsteels.com\/wp-content\/uploads\/2026\/03\/3343-PRIME.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Download the 3343 PRIME datasheet (PDF)<\/strong><\/a><\/p>\n<p>More grades: <a href=\"https:\/\/www.tgsteels.com\/en\/high-speed-steels-hss\/\">High Speed Steels<\/a>. Where to buy: <a href=\"https:\/\/www.tgsteels.com\/en\/service-network\/\">Service Network<\/a>.<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>[vc_row type=&#8221;full_width_background&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; video_bg=&#8221;use_video&#8221; video_mp4=&#8221;https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero.mp4&#8243; video_webm=&#8221;https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero.webm&#8221; video_ogv=&#8221;https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero.ogv&#8221; background_video_loading=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; parallax_bg=&#8221;true&#8221; parallax_bg_speed=&#8221;fast&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221;&#8230;<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":555,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-4145","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/pages\/4145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/comments?post=4145"}],"version-history":[{"count":0,"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/pages\/4145\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/pages\/555"}],"wp:attachment":[{"href":"https:\/\/www.tgsteels.com\/en\/wp-json\/wp\/v2\/media?parent=4145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}