Stainless Steel 316
- W.NR 1.4401
- W.NR 1.4404
- UNS S31600
- AWS 162
Applicable Standards:
- BS 970
- BS 1554
- BS 2056
- ASTM A313
Stainless Steel 316 has slightly better corrosion resistance than 302 and 304. It also has better non-magnetic properties.
Applications include:
- More suited to Marine, Food and Medical application than
302 and 304.
| Approximate Chemical Composition | |
| Cr | 16.5 - 18.5% |
| Ni | 10.5 - 13.5% |
| Mo | 2.0 - 2.5% |
| Fe | BAL |
| Properties | ||
| DENSITY | 8.0 g/cm3 | 0.289 lb/in3 |
| MELTING POINT | 1398 oC | 2555 oF |
| COEFFICIENT OF EXPANSION | 17.5 µm/m °C (20 - 100°C) |
9.7 x 10-6 in/in
°F (70 - 212°F) |
| MODULUS OF RIGIDITY | 70.3 kN/mm2 | 10196 ksi |
| MODULUS OF ELASTICITY | 187.5 kN/mm2 | 27195 ksi |
| CONDITION OF SUPPLY | HEAT TREATMENT (AFTER FORMING) |
| Annealed/Spring Temper | Stress relieve at 250°C (480°F) for 1 hour and air cool. |
| CONDITION | APPROX TENSILE STRENGTH | APPROX SERVICE TEMPERATURE | ||
| Annealed | 600 - 800 N/mm2 | 87 - 116 ksi | -200 to +300 oC | -330 to +570 oF |
| Spring Temper | 1300 - 2200 N/mm2 | 189 - 319 ksi | -200 to +300 oC | -330 to +570 oF |
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