| All data is for information only------(Home) | |
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| PRODUCT DATA of 17-7PH CH900 |
| Material | 17-7PH CH900 |
| General Information | A precipitation hardenable chromium-nickel-aluminum stainless steel combining high strength, moderate corrosion resistance and properties well suited for flat springs. |
| Chemical Composition | 16-18Cr, 6-7.75Ni, 0.75-1.5Al, rem Fe |
| EXPERIENCE IN PRACTICE |
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| Equivalent Designations | S17700, Custom 631, AISI 631, 1.4568 |
| PHYSICAL PROPERTIES |
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| Specific Gravity | 7.67 |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 200 GPa |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 8.3e-7 ohm.m |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 16.9 W/m.K |
| Thermal Expansion Coefficient | 10.3 μstrain/°C |
| Specific Heat | 0.461 J/g.K |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| Stress Corrosion Status | High Resistance to SCC: Table 1 Data Quality: Design Data |
| Machinability | Similar to austenitic stainless steel |
| Welding | Most common arc and resistance methods have been successfully employed with 17-7 PH. It is recommended that inert gas shielding be employed during fusion welding to reduce the oxidation of aluminum during the process. |