{"id":4070,"date":"2026-10-08T14:30:41","date_gmt":"2026-10-08T14:30:41","guid":{"rendered":"https:\/\/www.tgsteels.com\/cold-work-tool-steels\/1-2510-o1\/"},"modified":"2026-10-08T15:37:26","modified_gmt":"2026-10-08T15:37:26","slug":"1-2510-o1","status":"publish","type":"page","link":"https:\/\/www.tgsteels.com\/en\/cold-work-tool-steels\/1-2510-o1\/","title":{"rendered":"2510 PRIME"},"content":{"rendered":"[vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” video_bg=”use_video” video_mp4=”https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero-1.mp4″ video_webm=”https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero-1.webm” video_ogv=”https:\/\/www.tgsteels.com\/wp-content\/uploads\/2025\/09\/hss-hero-1.ogv” background_video_loading=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” parallax_bg=”true” parallax_bg_speed=”fast” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/2″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][divider line_type=”No Line” custom_height=”450″][vc_column_text css=”” text_direction=”default”]\n

2510 PRIME (1.2510, 95MnWCr5, SKS3, O1)<\/span><\/h1>\n[\/vc_column_text][divider line_type=”No Line” custom_height=”50″][\/vc_column][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/2″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”60″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n
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One of the most economical cold work tool steels, suitable for most of the cold work tools with high surface hardness after heat treatment<\/h4>\n<\/div>\n[\/vc_column_text][vc_column_text css=”” text_direction=”default”]\n
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2510 PRIME;<\/p>\n

    \n
  • is a low medium alloyed steel produced by a process that ensures good level of cleanliness.<\/li>\n
  • has a high surface hardness after heat treatment leading to good wear resistance associated with good toughness.<\/li>\n
  • has good dimensional stability.<\/li>\n
  • has better wear resistance than the 2842 without any decrease on the toughness because of the alloying with 0.6% W.<\/li>\n<\/ul>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”60″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n
    \n

    Applications<\/h3>\n

    2510 PRIME is used for the manufacture of cutting and punching tools up to 6 mm thick eventually up to 10 mm. It can also be used for the manufacture of taps, slides, gauges, guide columns, as well as for highly abrasive plastic mold cavities and gates for forming, blanking dies, deep drawing dies, shearing dies and tools and also in roll forming operations: rolls and tools.<\/p>\n

    2510 PRIME can also be used for the production of shear blades for paper and plastics.<\/p>\n<\/div>\n[\/vc_column_text][vc_column_text css=”” text_direction=”default”]\n

    \n

    Main properties<\/h3>\n
      \n
    • Good combination of high surface hardness (good wear resistance)<\/em> and good toughness<\/li>\n
    • Good machinability<\/li>\n
    • Good dimensional stability<\/li>\n<\/ul>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”60″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n
      \n

      Chemical composition (typical)<\/em><\/h3>\n<\/div>\n\n\n\n\n\n
      C<\/th>\nSi<\/th>\nMn<\/th>\nCr<\/th>\nW<\/th>\nV<\/th>\n<\/tr>\n<\/thead>\n
      1.00<\/td>\n0.25<\/td>\n1.10<\/td>\n0.60<\/td>\n0.60<\/td>\n0.10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \n

      Designation<\/h3>\n<\/div>\n\n\n\n\n\n
      Werkstoff Nr<\/th>\nISO<\/th>\nChina GB<\/th>\nJIS Japan<\/th>\nUK<\/th>\nAISI USA<\/th>\nRussia Gost<\/th>\nAFNOR<\/th>\nOther \/ Special<\/th>\n<\/tr>\n<\/thead>\n
      1.2510<\/td>\n95MnWCr5<\/td>\n–<\/td>\nSKS3<\/td>\n–<\/td>\nO1<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”60″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n
      \n

      Structure<\/h3>\n

      The structure of 2510 PRIME is fine and homogeneous without precipitation or carbide alignments at the grain boundaries, which ensures a very good tool life for tools made in steel 2510 as well as a good fatigue life.<\/p>\n

      Hardness at the time of delivery<\/h3>\n

      Annealed for 230 HB max.<\/p>\n<\/div>\n[\/vc_column_text][vc_column_text css=”” text_direction=”default”]\n

      \n

      Physical properties<\/h3>\n<\/div>\n\n\n\n\n\n\n\n\n
      Temperature<\/th>\n20\u00b0C<\/th>\n200\u00b0C<\/th>\n400\u00b0C<\/th>\n<\/tr>\n<\/thead>\n
      Volumic mass kg\/m3<\/sup><\/th>\n7780<\/td>\n7730<\/td>\n7650<\/td>\n<\/tr>\n
      Young Modulus N\/mm\u00b2<\/th>\n195000<\/td>\n180000<\/td>\n169000<\/td>\n<\/tr>\n
      Thermal conductivity W\/m.K<\/th>\n33<\/td>\n34<\/td>\n35<\/td>\n<\/tr>\n
      Coefficient of linear expansion 10-6<\/sup>\/K<\/th>\n11.5<\/td>\n11.7<\/td>\n11.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”60″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n
      \n

      Heat treatment<\/h3>\n

      Soft annealing<\/h4>\n

      Temperature: 740 – 770\u00b0C, duration 1h + 1h for 25 mm thickness. slow cooling in the furnace (10 to 20\u00b0C\/h)<\/em>. The atmosphere in the furnace must be reducing to avoid decarburization of the steel.<\/p>\n

      Stress relieving<\/h4>\n

      After machining, it is recommended to stress relieve at a minimum of 2 hours, followed by slow cooling in the furnace.<\/p>\n

      Austenitization<\/h4>\n

      In order to avoid any risk of cracking it is recommended to preheat in 1 step.<\/p>\n

        \n
      • 1st preheating step: temperature: 650\u00b0C time: 30 s\/mm of thickness<\/li>\n<\/ul>\n

        Recommended austenitizing temperature: 790 – 820\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 room for 30 minutes at the austenitizing temperature, as soon as the core of the room has reached the austenitizing temperature.<\/p>\n

        Quenching medium<\/h4>\n

        Oil at 80\u00b0C, vacuum (pressure > 6 bars)<\/em>, salt bath 500 – 550\u00b0C.
        \nTo ensure good toughness, treatment with oil or salt bath is preferable. The hardness after quenching is 64 HRC.<\/p>\n

        Sub zero treatment<\/h4>\n

        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 25mm of thickness of the part.<\/p>\n

        The temperature range from -70\u00b0C up to -120\u00b0C (named cold treatment of steel)<\/em> leads to the complete transformation of austenite into martensite and as a consequence to a better stability associated with an improved hardness and a better wear resistance.<\/p>\n

        The temperature range from -135\u00b0C down to -190\u00b0C (named cryotreatment of steel)<\/em> leads also to the complete transformation of austenite and also the precipitation of ultra fine carbides improving a lot the wear resistance without modification of the toughness<\/p>\n

        This treatment is optional for common applications.<\/p>\n<\/div>\n[\/vc_column_text][vc_column_text css=”” text_direction=”default”]\n

        \n

        Tempering<\/h4>\n

        To ensure a minimum residual austenite rate as well as greater tool stability, it is essential to perform a double (triple is better)<\/em> tempering. Each tempering is followed by a cooling under 100\u00b0C.<\/p>\n

        Each tempering time must be at least equal to 1h + 1h for 25 mm of thickness of the treated part (equivalent thermal thickness)<\/em>.<\/p>\n

        Note:
        \nHardness as a function of tempering temperature:
        \nThe usual hardness for cold working uses is in the range of 58 to 61 HRC and is obtained by tempering between 450 and 500\u00b0C. Higher tempering temperature can be performed for hot work applications. In order to avoid the formation of large carbides that are detrimental to toughness, it is preferable to carry out austenitization at the lowest possible temperature, i.e. 1000 or 1020\u00b0C.<\/em><\/p>\n

        The recommended hardness for cold work is:
        \n1. Cold shears: 54 to 59 HRC
        \n2. Forming tools:<\/em><\/p>\n