Property profile
Composition(mass fraction)(wt.%)[1]
Min: 0.40%C, 13.00%Ni, 13.00%Cr, 0.25%Mo, 2.00%W
Max: 0.50%C, 0.80%Si, 0.70%Mn, 0.35%P, 0.03%S, 15.00%Ni, 15.00%Ni, 0.40%Mo, 2.75%W
General properties[2-3]
|
Density |
128 (≥) Kg/m3 |
|
Price |
7.8 - 65 RMB/Kg |
Mechanical properties(Mainly linking to valve prodution and machinery manufacturing)[1]
|
Young’s modulus |
243 kN/mm2 |
|
Tensile strength |
705 MPa |
|
Tensile strength(after annealing） |
817 MPa |
|
Proof strength Rp0.2 |
246 MPa |
|
Proof strength Rp0.2(after annealing） |
363 MPa |
|
Elongation(at fracture) |
44% |
|
Hardness(Brinell) |
221 |
|
Impact energy KV |
43 J |
|
Reduction in cross section on fracture Z |
43% |
Thermal properties(Mainly linking to hot-work die and valve production)[1]
|
Melting point |
5989 - 6128 °C |
|
Thermal conductivity |
23 - 98 W/m*K |
|
Specific heat capacity |
450 - 460 J/kg*K |
|
Thermal expansion |
70 - 57 e-6/K |
Resistance properties(Mainly linking to valve production and hot-work die)[4]
|
Corrosion resistance |
Great |
|
Oxidation resistance |
Great |
Eco properties[5]
|
CO2 footprint(without recycle) |
2.9 kg/kg |
|
Recycle |
√ (100% recyclable) |
References
[1] Steels T. 4Cr14Ni14W2Mo - Stainless Steel,Heat-Resistant Steel and Special Alloy Steel - steel, 4Cr14Ni14W2Mo Datasheets, Supplier, Chemical composition, properties [Internet]. Tool-die-steels.com. 2020 [cited 28May 2020]. Available from: https://www.tool-die-steels.com/grades/Stainless-Steels-Special-Steel/31/140/4Cr14Ni14W2Mo.html.
[2] GB 4Cr14Ni14W2Mo Details, [cited 28 May, 2020]. Available from: https://b2b.baidu.com/ss?q=%E6%B1%9F%E6%B2%B9%E5%B8%82%E5%8D%9A%E5%A4%A7%E7%89%B9%E6%AE%8A%E9%92%A2%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%204Cr14Ni14W2Mo&from=b2b_straight&srcid=5103&from_restype=product.
[3] Price of 4Cr14Ni14W2Mo, [cited 28 May, 2020], Available from:https://b2b.baidu.com/ss?q=%E6%B1%9F%E6%B2%B9%E5%B8%82%E5%8D%9A%E5%A4%A7%E7%89%B9%E6%AE%8A%E9%92%A2%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%204Cr14Ni14W2Mo&from=b2b_straight&srcid=5103&from_restype=product.
[4] Chan W, Kwok C, Lo K. Effect of laser surface melting and subsequent re-aging on microstructure and corrosion behavior of aged S32950 duplex stainless steel. Materials Chemistry and Physics. 2018; 207:451-464.
[5] Sandberg, H., Lagneborg, R., Lindblad, B., Axelsson, H. and Bentell, L., 2001. CO2 emissions of the Swedish steel industry. Scandinavian Journal of Metallurgy, 30(6), pp.420-425.