S44626 stainless steel is a high-strength, corrosion-resistant stainless steel material with excellent mechanical properties and processing properties. Its standard performance parameters are as follows:
1. Chemical composition.
The chemical composition of S44626 stainless steel should be in accordance with the provisions of Table 1:
Table 1 Chemical composition (mass fraction) of S44626 stainless steel
element | c | si | mn | p | s | ni | cr | mo | n |
Minimum | 0.030 | 0.50 | 1.00 | 0.020 | 0.010 | 8.00 | 17.00 | 0.50 | 0.18 |
Maximum | 0.060 | 1.00 | 2.00 | 0.045 | 0.030 | 10.50 | 20.00 | 1.50 | 0.25 |
2. Physical properties.
1.Density: S44626 stainless steel has a density of 78g/cm³。
2.Melting point range: The melting point range of S44626 stainless steel is 1371-1431.
3.Specific heat capacity: The specific heat capacity of S44626 stainless steel is 502J (kg·).
4.Thermal conductivity: The thermal conductivity of S44626 stainless steel is 15W (M·).
5.Linear expansion coefficient: The linear expansion coefficient of S44626 stainless steel is 18 10 -6.
3. Mechanical properties.
1.Tensile strength: The tensile strength of S44626 stainless steel should not be less than 750MPa.
2.Yield strength: The yield strength of S44626 stainless steel should not be less than 550MPa.
3.Elongation after break: The elongation after break of S44626 stainless steel should not be less than 15%.
4.Section shrinkage: The section shrinkage of S44626 stainless steel should not be less than 35%.
5.Brinell hardness: The Brinell hardness of S44626 stainless steel should not be less than 250HBW.
Fourth, corrosion resistance.
S44626 stainless steel has good corrosion resistance, which is manifested in high corrosion resistance in sulfuric acid with a concentration of 65%. In addition, due to its high chromium and molybdenum content, it has excellent corrosion resistance to oxidizing acid media, and also has good corrosion resistance in pitting resistant media. At the same time, S44626 stainless steel is also resistant to chloride stress corrosion.