Stainless Steel 316LVM
- W.NR 1.4441
- UNS S31673
- AWS 163
Applicable Standards:
- BS 7252 Pt1 COMPOSITION D
- ASTM F138
Regarded as 'Medical Grade', this stainless steel 316 is vacuum melted to achieve the extremely high levels of purity and 'cleanliness' required for surgical implants. It has excellent resistance in physiological environments, to general and intergranular corrosion, to pitting and crevice corrosion.
Applications include:
- Medical implants
- High precision electronics
| Approximate Chemical Composition | |
| Cr | 17 - 19% |
| Ni | 13 - 15% |
| Mn | 2% MAX |
| Mo | 2.25 - 3.5% |
| Fe | BAL |
| Properties | ||
| DENSITY | 8.0 g/cm3 | 0.289 lb/in3 |
| MELTING POINT | 1500 oC | 2730 oF |
| COEFFICIENT OF EXPANSION | 16.5 µm/m °C (20 - 100°C) |
9.2 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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