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Overview
Specifications
17-4 PH Stainless
17-4 PH is a martensitic precipitation-hardening stainless steel that provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316°C), good toughness in both base metal and welds, and short time, low-temperature heat treatments that minimize warping and scaling.
Chemical Composition
| Element | % |
|---|---|
| Carbon | 0.07 max |
| Manganese | 1.00 max |
| Phosphorus | 0.040 max |
| Sulfur | 0.030 max |
| Silicon | 1.00 max |
| Chromium | 15.00 – 17.50 |
| Nickel | 3.00 – 5.00 |
| Copper | 3.00 – 5.00 |
| Columbium + Tantalum | 0.15 – 0.45 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (ksi) | 160 min |
| Yield Strength 0.2% Offset (ksi) | 145 min |
| Elongation in 2 in. (%) | 5 min |
| Hardness (Rockwell C) | 35 min |