17 7PH vs ATI 412 Dual-Phase Stainless Steel
Property comparison of 17 7PH and ATI 412 Dual-Phase Stainless Steel, both stainless steel.
| Property | 17 7PH | ATI 412 Dual-Phase Stainless Steel | Difference |
|---|---|---|---|
| Yield strength | 1,586 MPa | 414 MPa | -74% |
| Tensile strength | 1,655 MPa | 565 MPa | -66% |
| Elongation | 1 % | 24 % | +2300% |
| Density | 7,810 kg/m³ | 7,750 kg/m³ | -1% |
Difference is ATI 412 Dual-Phase Stainless Steel relative to 17 7PH. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- S17700
- standard
- AMS 5529
- heat treatment
- CH900
- grade
- UNS S41003
- standard
- ASTM A240
- heat treatment
- Sub-critical Anneal
About precipitation-hardening stainless steels
PH grades reach high strength through aging at intermediate temperatures while keeping the corrosion resistance of austenitic or martensitic grades. 17-4 PH and 15-5 PH are the common bar and forging stocks for aerospace and pump shafts. Mechanical properties depend strongly on the aging condition (H900, H1025, H1150).
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