Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance.
The following datasheet gives an overview of grade 440C stainless steel.
The chemical composition of grade 440C stainless steel is outlined in the following table.
Element | Content (%) |
---|---|
Iron, Fe | 79.15 |
Chromium, Cr | 17 |
Carbon, C | 1.1 |
Manganese, Mn | 1 |
Silicon, Si | 1 |
Molybdenum, Mo | 0.75 |
The following table shows the physical properties of grade 440C stainless steel.
Properties | Metric | Imperial |
---|---|---|
Density | 7.80 cm³ | 0.282 lb/in³ |
Melting point | 1483°C | 2700°F |
The mechanical properties of grade 440C stainless steel are displayed in the following table.
Properties | Metric | Imperial |
---|---|---|
Tensile strength | 760-1970 MPa | 110000-286000 psi |
Yield strength (@ strain 0.200%) | 450-1900 MPa | 65300-276000 psi |
Bulk modulus | 166 GPa | 24100 ksi |
Shear modulus | 83.9 GPa | 12200 ksi |
Elastic modulus | 200 GPa | 29008 ksi |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break | 2-14 % | 2-14 % |
Hardness, Rockwell B (converted from Brinell hardness) | 97 | 97 |
The thermal properties of grade 440C stainless steel are given in the following table.
Properties | Metric | Imperial |
---|---|---|
Thermal expansion co-efficient | 10.2 µm/m°C | 5.67 µin/in°F |
Thermal conductivity | 24.2 W/mK | 168 BTU in/hr.ft².°F |