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Chemical Composition (wt%) limits as specified in ASTM A240 and ASME SA240*
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Chemical Composition
Chemical Composition (wt%) limits as specified in ASTM A240 and ASME SA240*
| Element | 430 |
| Carbon | 0.12 |
| Chromium | 16.0-18.0 |
| Nickel | 0.75 |
| Manganese | 1.00 |
| Silicon | 1.00 |
| Phosphorus | 0.040 |
| Sulfur | 0.030 |
Mechanical Properties
Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA240
| Property | 430 |
| Yield Strength, min. (ksi) | 30 |
| Tensile Strength, min. (ksi) | 65 |
| Elongation, min. (%) | 22 |
| Hardness, max. (Rb) | 89 |
Physical Properties
Physical properties for Type 430 stainless steel
| Property | 430 Data |
| Density, lb/in3 | 0.276 |
| Modulus of Elasticity, psi | 29.0 x 106 |
| Coefficient of Thermal Expansion, 68-212˚F, /˚F | 5.7 x 10-6 |
| Thermal Conductivity, Btu/ft hr ˚F | 13.8 |
| Specific Heat, Btu/lb ˚F | 0.11 |
| Electrical Resistivity, Microohm-in | 23.6 |
Standards
Typical standards for Type 430 stainless steel
| 430 |
| ASTM A240 |
| ASME SA240 |
| AMS 5503 |
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