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Overview
Specifications
501 Stainless Steel
501 stainless steel is a martensitic stainless steel that provides good corrosion resistance and oxidation resistance, along with high strength and hardness in the heat-treated condition. It is the material specified for ASTM A194 Grade 3 nuts.
| Chemical Properties | Range (%) |
|---|---|
| Carbon (C) | 0.10 min |
| Manganese (Mn) | 1.00 max |
| Phosphorus (P) | 0.040 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 4.00 – 6.00 |
| Molybdenum (Mo) | 0.40 – 0.65 |
| Mechanical Properties | Requirement |
|---|---|
| Tensile Strength, min (ksi) | 60 |
| Yield Strength, min (ksi) | 25 |
| Hardness, max (HB) | 248 |