15-7 Ph Stainless Steel Forgings
A564, A579, A693, A705, 1.4532, 1.4574, MIL S-8955, 5812, 5813, S15700
Grade 15-7 stainless steel is a semi-austenitic precipitation hardening stainless steel. It has high strength and moderate corrosion resistance. The following datasheet gives an overview of grade 15-7 stainless steel.
Stainless steels are high-alloy steels which have high corrosion resistance when compared to other steels due to the presence of large amounts of chromium. They contain about 4-30% of chromium. Based on their crystalline structure, they are further divided into ferritic, austenitic, and martensitic steels. Another group of stainless steels are known as precipitation-hardened steels. They are the combination of martensitic and austenitic steels.
15-7 Ph Stainless Steel Forgings Properties
15-7 Ph Forgings Chemical Requirements
| UNS Designation | Type | C | Mn | P | S | Si | Cr | Ni | Al | Mo | Ti | Cu | Other Elements |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S15700 | 632 | 0.09 | 1.00 | 0.040 | 0.030 | 1.00 | 14.00-16.00 | 6.50-7.75 | 0.75-1.50 | 2.00-3.00 | ... | ... | ... |
15-7 Ph Forgings Mechanical Requirements
| Type | Condition | Suggested Hardening or Aging Treatment, or BothB,C,D | Applicable Thickness, in. and Test DirectionE | Tensile Strength, min | Yield Strength, minF | Elongation in 2 in. [50 mm] or 4D, min. % | Reduction of area, min, % | HardnessG | Impact Charpy-V, min | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature, °F [°C] | Time, h | QuenchH | ksi [MPa] | ksi [MPa] | Rockwell C, min | Brinell, min | ft·lbf | J | |||||
| 632 | RH950 | Same as Type 631 | Up to 4 in. incl [100 mm] (L) | 200 [1380] | 175 [1210] | 7 | 25 | ... | 415 | ... | ... | ||
| TH1050 | Up to 6 in. incl [150 mm] (L) | 180 [1240] | 160 [1100] | 8 | 25 | ... | 375 | ... | ... | ||||