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Chemical Composition
The following table shows the chemical composition of grade 434 stainless steel.
| Element | Content (%) |
|---|---|
| Iron, Fe | 81 |
| Chromium, Cr | 16 |
| Molybdenum, Mo | 1 |
| Silicon, Si | 1 |
| Manganese, Mn | 1 |
| Carbon, C | 0.12 |
| Phosphorous, P | 0.040 |
| Sulfur, S | 0.030 |
The physical properties of grade 434 stainless steel are given in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.80 cm³ | 0.282 lb/in³ |
| Melting point | 1510°C | 2750°F |
The following table outlines the mechanical properties of annealed grade 434 stainless steel.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 538 MPa | 78000 psi |
| Yield strength (@ strain 0.200%) | 441 MPa | 64000 psi |
| Elastic modulus | 200 GPa | 29008 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 32% | 32% |
| Hardness, Rockwell B (converted from Brinell hardness) | 89 | 89 |
The thermal properties of grade 434 stainless steel are displayed in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@ 0-100°C/32-212°F) | 10.4 µm/m°C | 5.78 µin/in°F |
| Thermal conductivity (@ 100°C/212°F) | 26.1 W/mK | 181 BTU in/hr.ft².°F |
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