DH31-S Die steel
DH31-S chemical composition ● heat treatment :
|
Datong steel grade |
chemical composition（%） |
|||||||||
|
C |
Si |
Mn |
P |
S |
Cu |
Ni |
Cr |
Mo |
V |
|
|
SKD61 |
0.39 |
0.9 |
0.4 |
0.015 |
0.002 |
0.1 |
0.1 |
5.3 |
1.2 |
0.8 |
|
DH31-S |
Patent acquisition（0.4C-5.5Cr-Mo-V） |
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Quenching temperature：1000-1050℃
Cooling method: air-cooled or air-cooled
Tempering temperature and hardnessHRC：
200 300 400 500 600 650
- - 51 53 50 38
Main application: Large die-casting molds
Specification and model:Round rod, flat plate full
talent:
Extremely good hardenability, especially good toughness when used for large molds(be relative toSKD61)
Extremely good resistance to heat fatigue cracking(be relative toSKD61)
Good heat resistance and melting resistance(be relative toSKD61)
High machinabilitySKD61Slightly reduced。
purpose:
purpose hardness purpose hardness
AL ，MgDie casting mold 43～50HRC Hot pressing mold(Steel, copper) 45～50HRC
Die casting mold components(Injection cylinder, injection punch) 45～50HRC thermal shear 40～50HRC
ALHot extrusion die 45～50HRC Cold forging die 50～52HRC
The hardness requirements for hot work mold steel are appropriate, with a focus on red hardness, thermal conductivity, and wear resistance. Therefore, the carbon content is low, and the alloying elements mainly increase hardenability, improve wear resistance, and red hardness。
1.The company has established long-term and stable cooperative relationships with multiple well-known steel mills at home and abroad, all of which provide original material certification
2.Wholesale and retail, discounted prices, superior quality (large quantities are preferred), timely and fast delivery
3.The company has several large vertical band saws and steel plate precision machining machinery,
4.We are a large enterprise that integrates the sales, wholesale, and machining services of multiple imported high-quality mold steel products
5.Wide channels, sufficient supply of goods, and business scope covering all parts of the country, can meet the needs of customers in various regions
Sincerely welcome new and old customers from all walks of life to call and inquire about and negotiate business at any time. Our high-quality products and reasonable prices will definitely meet your requirements！
Welcome new and old customers to call for consultation and negotiation。