17-4PH VAR AMS 5622
17-4 PH VAR AMS 5622 Stainless Steel is a precipitation hardening martensitic stainless steel. Typical use is seen in applications requiring high strength and a modest level of corrosion resistance. Strength and toughness desired can be manipulated by a temperate range in the heat treatment process. Standard specification is AMS 5622 and AMS 5643.
Stock sizes: 0.7875” to 9.000” diameter
Common Specifications:
- AMS 5622 Type 1
- AMS 5643
- PW LCS F-17
- GE S-400 (S-SPEC-35)
Industry Trade Names:
- Type 630
- UNS S17400
Common Applications:
- Aircraft
- Gas turbines
- Chemical processing equipment
- Nuclear reactors
Composition
| Element | Min. | Max. |
|---|---|---|
| Carbon | — | 0.07 |
| Manganese | — | 1.00 |
| Silicon | — | 1.00 |
| Phosphorus | — | 0.0025 |
| Sulfur | — | 0.015 |
| Chromium | 15.00 | 17.50 |
| Nickel | 3.00 | 5.00 |
| Molybdenum | — | 0.50 |
| Copper | 3.00 | 5.00 |
| Columbium | 5xC | 0.45 |