1.2312 tool Steel - Special steel china supplier-OTAI Special ...
OTAI SPECIAL STEEL is a trusted supplier of Din W-Nr 1.2312 tool steel based in China. Our extensive experience of over 16 years in the special tool steel market ensures that we provide high-quality materials such as tool steel plates, round bars, flat bars, and squares.
1.2312 steel is a premium plastic tool mold steel, enhanced with about 0.08% sulfur to improve its free cutting capability. This steel falls under the category of high-quality medium carbon and is pre-hardened to a range of 28-34HRc, hence, it does not require additional heat treatment for plastic injection molding processes.
The properties of 1.2312 tool steel are closely aligned with those of ASTM AISI P20S steel. In most operational settings, 40CrMnMoS8-6/1.2312 steel can be considered equivalent to P20S tool steel.
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Related Specifications of Din W-Nr 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 an excellent choice for plastic molding applications. We offer 1.2312 round bars, flat bars, plates, hexagonal steel bars, and square blocks. Our round bars can be cut to your desired lengths, and rectangular pieces can be obtained from flat bar or plate to meet your specifications. Additionally, we provide ground tool steel bars to deliver a precision finished product with tight tolerances.
Applications
DIN 1.2312 tool steel serves as a prime material for plastic injection molding. Produced through a “super clean” process, it exhibits high micro purity and a uniform structure, allowing for superior polishing and light etching engraving. Its properties after heat treatment allow for easy processing and effective polishing, making it suitable for chrome surface treatment. The microstructure is characterized by martensite and bainite structures, making it ideal for applications like automotive injection molds and PVC, PP plastic injection molding.
Regular Sizes and Tolerance
- 1.2312 Tool Steel round bar: diameter Ø50 mm
- 1.2312 Tool Steel Plate: Thickness 14-800mm x Width 100 mm
For other sizes not specified, please reach out to our experienced sales team.
Heat Treatment and Mechanical Properties
- Grade: 40CrMnMoS8-6
- Material No. W-Nr.: 1.2312 Tool Steel
- Hot working temperature / C: ~ 850
- Annealing temperature / C: 780 ~ 760
- After annealing, the hardness will be 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
Our 1.2312 tool steel round bars and flat sections can be customized to your required dimensions. Ground flat stock or gauge plates are also available in both standard and nonstandard sizes.
For inquiries regarding 1.2312 tool steel, please contact our knowledgeable sales team via email or telephone. We aim to respond to all queries about 1.2312 steel within 24 hours.
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