Grade 301 is an Austenitic stainless steel, widely used for spring manufacture in the hard cold rolled condition without the requirement for heat treatment after forming. Grade 301 has rust and corrosion resistant properties and good ductility. It is non-magnetic in the annealed condition but becomes slightly more magnetic when cold worked.
Available forms: Coils, Sheets, Strips,
Chemical Analysis)
(in %) according to EN 10151
| Element | % Present |
| Carbon (C) | 0.05 to 0.15 |
| Silicon (Si) | 2.00 |
| Manganese (Mn) | 2.00 |
| Phosphurous (P) | 0.045 |
| Sulfur (S) | 0.015 |
| Nitrogen (N) | 0.10 |
| Chromium (Cr) | 16.0 to 19.0 |
| Molybdenum (Mo) | 0.80 |
| Nickel (Ni) | 6.0 to 9.5 |
Edging possibilities (r/t) for thickness in mm at an angle of 90°
| Rod Across / Along the Grain | ||||||||
| Thickness | > 0.05 to 0.25mm | > 0.25 to 0.50mm | > 0.50 to 0.75mm | > 0.75 to 1.00mm | ||||
| Tensile Strength | Across | Along | Across | Along | Across | Along | Across | Along |
| 1150 – 1300 | ≤ 0.5 | ≤ 2.5 | ≤ 1.0 | ≤ 3.0 | ≤ 2.0 | ≤ 4.0 | ≤ 2.5 | ≤ 5.0 |
| 1300 – 1500 | ≤ 1.5 | ≤ 3.0 | ≤ 2.0 | ≤ 4.0 | ≤ 2.5 | ≤ 5.0 | ≤ 3.0 | ≤ 7.0 |
| 1500 – 1700 | ≤ 2.0 | ≤ 4.5 | ≤ 2.5 | ≤ 5.0 | ≤ 3.0 | ≤ 7.0 | ≤ 3.5 | ≤ 9.5 |
| 1700 – 1900 | ≤ 2.5 | ≤ 9.0 | ≤ 3.0 | ≤ 9.5 | ≤ 3.5 | ≤ 11.0 | – | – |
Minimum Elongation A80% at different tensile strengths
| Tensile Strength | A80% |
| +C1150 | 15 |
| +C1300 | 10 |
| +C1500 | 5 |
| +C1700 | 2 |
| +C1900 | 1 |
E-modulus in GPa (Gigapascal) at room temperature
| Delivery Condition | ||
| Tensile Strength (in MPa) | Cold Rolled | Cold Rolled and Heat Treated |
| approx. 1800 | 185 | 195 |
| approx. 1300 | 179 | 189 |