1.2312 tool Steel

1.2312 Mould Steel in the Dongguan Otai Warehouse

OTAI SPECIAL STEEL is Din W-Nr 1.2312 Tool Steel stockholders and suppliers from china. we have more 16 years experience in 1.2312 special?tool?steel plate, round, ?bar, flat bar, square supply.
1.2312 Steel is a high quality plastic tool mold steel, 1.2312 is 1.2311 add about 0.08% Sulphur improve free cutting ability of 1.2311 tool steel . It belong to the high quality medium carbon, Pre-hardness(28~34HRc) plastic mould steel. It needn’t further Make heat treatment for make plasitc injection moulding.
1.2312 tool steel properties is very simliar with ASTM AISI P20S steel. At most work environment,40CrMnMoS8-6/1.2312 steel is equivalent with P20S tool steel.

Related Specifications of Din WN-r 1.2312 tool steel material

Chemical composition

C(%) 0.35~0.45 Si(%) 0.30~0.50 Mn(%) 1.40~1.60 P(%) ≤0.030
S(%) 0.05~0.10 ?Cr(%) 1.80~2.00 ?Mo(%) 0.15~0.25

Form of Supply

Din W-Nr 1.2312 Tool Steel is a nice?Plastic Mould steel, we can supply the 1.2312 round bar, steel flat bar, plate, hexagonal steel bar and steel square block. 1.2312 steel Round bar can be sawn to your required lengths as one offs or multiple cut pieces. ?Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances…


DIN 1.2312 Tool steel is a plastic injection mould steel material, the steel by “super clean” produce process, pre-hardened, showing the height of micro pure and excellent homogeneous structure, excellent polishing and light etching engraving. After heat treatment, processing and polishing performance is very good, can be carried out, and can be processed, suitable for the surface treatment of chrome, material hardness, good toughness, good mechanical processing performance. Gold microstructure is martensite and bainite structure. Main be applied to in plastic steel mold. like car injection moulding, PVC, PP plastic injection molding etc.

Regular size and Tolerance

  • 1.2312 Tool Steel round bar: ?diameter ?50~1500mm
  • 1.2312 Tool Steel Plate: Thickness 14-800mm x Width 100-3000mm

Others have not specified size, pls contact our?experienced sales team.

Heat Treatment and?Mechanical properties

  • Grade: 40CrMnMoS8-6
  • Material No. W-Nr.: 1.2312 Tool Steel
  • Hot working temperature / C: 1050 ~ 850
  • Annealing temperature / C: 780 ~ 760
  • After annealing, the hardness is less than or equal to 230 HBS
  • Quenching temperature / C: 830 ~ 870
  • Cooling medium: Oil
  • Common tempering temperature / C: 640 ~ 680
  • Hardness after tempering HRC|100 C: 51
  • Hardness after tempering HRC|200 C: 50
  • Hardness after tempering HRC|300 C: 48
  • Hardness after tempering HRC|400 C: 45


1.2312 tool steel round bar and flat sections can be cut to your required sizes. 1.2312 tool steel ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. 1.2312 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

Contact our experienced sales team to help you with your 1.2312 Tool steel questionsadn enquiry by Email or Telphone. The 1.2312 steel questions will be reply in 24 hours.

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