{"id":4175,"date":"2026-10-09T06:29:14","date_gmt":"2026-10-09T06:29:14","guid":{"rendered":"https:\/\/www.tgsteels.com\/nickel-alloys\/alloy-400\/"},"modified":"2026-10-09T06:33:06","modified_gmt":"2026-10-09T06:33:06","slug":"alloy-400","status":"publish","type":"page","link":"https:\/\/www.tgsteels.com\/en\/nickel-alloys\/alloy-400\/","title":{"rendered":"Alloy 400"},"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” bg_image=”3315″ bg_position=”center center” background_image_loading=”default” bg_repeat=”no-repeat” scene_position=”center” text_color=”light” 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\/1″ 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

Alloy 400 (UNS N04400, 2.4360, 2.4361)<\/span><\/h1>\n[\/vc_column_text][divider line_type=”No Line” custom_height=”50″][\/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

Industrial<\/h4>\n

Power Plants, Chemical Industry, Mineral Oil Distillation Plants, Offshore Platforms.<\/p>\n

Features<\/h3>\n
    \n
  • Resistance against chloride-induced stress corrosion<\/li>\n
  • Excellent strength even at low application temperatures<\/li>\n
  • Easy processing compared to other high-alloy materials<\/li>\n<\/ul>\n

    Material<\/h3>\n

    Alloy 400 \/ UNS N04400 \/ 2.4360&2.4361<\/p>\n

    Surface<\/h3>\n

    Bright annealed \/ annealed<\/p>\n

    Package<\/h3>\n

    Wooden case<\/p>\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 (Nominal)<\/em> %<\/h3>\n<\/div>\n\n\n\n\n\n
    Grade<\/th>\nNi<\/th>\nCu<\/th>\nFe<\/th>\nMn<\/th>\nC<\/th>\nSi<\/th>\nS<\/th>\n<\/tr>\n<\/thead>\n
    Alloy 400<\/td>\n63.0 min<\/td>\n28.0- 34.0<\/td>\n2.5 max<\/td>\n2.0 max<\/td>\n0.3 max<\/td>\n0.5 max<\/td>\n0.024 max<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    Physical properties<\/h3>\n<\/div>\n\n\n\n
    Density<\/th>\n8.82 g\/cm3<\/sup> (0.32 lb\/in3<\/sup>)<\/em> at 20\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    Heat treatment<\/h3>\n<\/div>\n\n\n\n\n\n
    Annealed<\/th>\nStress-Relieved<\/th>\n<\/tr>\n<\/thead>\n
    The soft annealing should be performed at temperatures of 700 to 900\u00b0C (1,292 to 1,652\u00b0F)<\/em>, preferably at about 825\u00b0C (1,517\u00b0F)<\/em>.<\/td>\nStress-relief annealing at about 550 to 650\u00b0C (1,022 to 1,202\u00b0F)<\/em> should then occur, in order to prevent stress corrosion cracking.<\/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

    Pipe and tube<\/h3>\n

    Standard<\/h4>\n

    ASTM B165 for seamless pipe and tube<\/p>\n

    Mechanical properties<\/h4>\n<\/div>\n\n\n\n\n\n\n\n
    Heat Treatment<\/th>\nTensile Strength, min, psi (MPa)<\/em><\/th>\nYield Strength, min. (0.2% offset)<\/em>, min, psi (MPa)<\/em><\/th>\nElongation in 2 in. or 50 mm (or 4 D)<\/em>, min, %<\/th>\n<\/tr>\n<\/thead>\n
    Annealed: 5 in. (127 mm)<\/em> outside diameter and under<\/th>\n70 000 (480)<\/em><\/td>\n28 000 (195)<\/em><\/td>\n35<\/td>\n<\/tr>\n
    Annealed: Over 5 in. (127 mm)<\/em> outside diameter<\/th>\n70 000 (480)<\/em><\/td>\n25 000 (170)<\/em><\/td>\n35<\/td>\n<\/tr>\n
    Stress-Relieved: All sizes<\/th>\n85 000 (585)<\/em><\/td>\n55 000 (380)<\/em><\/td>\n15<\/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

    Round and hexagonal bar<\/h3>\n

    Standard<\/h4>\n

    ASTM B164<\/p>\n

    Mechanical properties<\/h4>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Heat Treatment<\/th>\nTensile Strength, min, psi (MPa)<\/em><\/th>\nYield Strength, min. (0.2% offset)<\/em>, min, psi (MPa)<\/em><\/th>\nElongation in 2 in. or 50 mm (or 4 D)<\/em>, min, %<\/th>\n<\/tr>\n<\/thead>\n
    Cold-worked (as worked)<\/em>: Rounds under 1\/2<\/th>\n11 000 (760)<\/em><\/td>\n85 000 (585)<\/em><\/td>\n8<\/td>\n<\/tr>\n
    Cold-worked (as worked)<\/em>: hexagons under 1\/2<\/th>\n85 000 (585)<\/em><\/td>\n55 000 (380)<\/em><\/td>\n10<\/td>\n<\/tr>\n
    Cold-worked (Stress-relieved)<\/em>: Rounds under 1\/2<\/th>\n84 000 (580)<\/em><\/td>\n50 000 (345)<\/em><\/td>\n10<\/td>\n<\/tr>\n
    Cold-worked (Stress-relieved)<\/em>: Rounds 1\/2 to 3 1\/2<\/th>\n87 000 (600)<\/em><\/td>\n60 000 (415)<\/em><\/td>\n20<\/td>\n<\/tr>\n
    Cold-worked (Stress-relieved)<\/em>: Rounds over 3 1\/2 to 4<\/th>\n84000 (580)<\/em><\/td>\n55 000 (380)<\/em><\/td>\n20<\/td>\n<\/tr>\n
    Cold-worked (Stress-relieved)<\/em>: hexagons 2 and under<\/th>\n84 000 (580)<\/em><\/td>\n50 000 (345)<\/em><\/td>\n20<\/td>\n<\/tr>\n
    Cold-worked (Stress-relieved)<\/em>: hexagons over 2 to 3 1\/8<\/th>\n80 000 (552)<\/em><\/td>\n50 000 (345)<\/em><\/td>\n20<\/td>\n<\/tr>\n
    Hot-worked (Stress-relieved)<\/em>: Rounds up to 12 hexagons 2 1\/8 and under<\/th>\n80 000 (552)<\/em><\/td>\n40 000 (276)<\/em><\/td>\n30<\/td>\n<\/tr>\n
    Hot-worked (Stress-relieved)<\/em>: Rounds over 12 to 14<\/th>\n75 000 (517)<\/em><\/td>\n40 000 (276)<\/em><\/td>\n30<\/td>\n<\/tr>\n
    Hot-worked (Stress-relieved)<\/em>: hexagons over 2 1\/8 to 4<\/th>\n75 000 (517)<\/em><\/td>\n30 000 (207)<\/em><\/td>\n25<\/td>\n<\/tr>\n
    Hot-worked (Annealed)<\/em> or Cold-worked (Annealed)<\/em>: Rod and Bar, all sizes<\/th>\n70 000 (480)<\/em><\/td>\n25 000 (170)<\/em><\/td>\n35<\/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

    Sheet and plate<\/h3>\n

    Standard<\/h4>\n

    ASTM B127<\/p>\n

    Mechanical properties<\/h4>\n<\/div>\n\n\n\n\n\n\n\n\n
    Heat Treatment<\/th>\nTensile Strength, min, psi (MPa)<\/em><\/th>\nYield Strength, min. (0.2% offset)<\/em>, min, psi (MPa)<\/em><\/th>\nElongation in 2 in. or 50 mm (or 4 D)<\/em>, min, %<\/th>\n<\/tr>\n<\/thead>\n
    Hot-Rolled Plate: Annealed<\/th>\n70 000 (485)<\/em><\/td>\n28 000 (195)<\/em><\/td>\n35<\/td>\n<\/tr>\n
    Hot-Rolled Plate: As-rolled<\/th>\n75 000 (515)<\/em><\/td>\n40 000 (275)<\/em><\/td>\n25<\/td>\n<\/tr>\n
    Hot-Rolled Sheet: Annealed<\/th>\n70 000 (485)<\/em><\/td>\n28 000 (195)<\/em><\/td>\n35<\/td>\n<\/tr>\n
    Cold-Rolled Sheet: Annealed<\/th>\n70 000 to 85 000 (485 to 585)<\/em><\/td>\n28 000 (195)<\/em><\/td>\n35<\/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=”120″ 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

    Download the Alloy 400 pipe and tube datasheet (PDF)<\/strong><\/a><\/p>\n

    Download the Alloy 400 round and hexagonal bar datasheet (PDF)<\/strong><\/a><\/p>\n

    Download the Alloy 400 sheet and plate datasheet (PDF)<\/strong><\/a><\/p>\n

    More grades: Nickel Alloys<\/a>. Where to buy: Service Network<\/a>.<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

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