| STD | UNS | British Standards | Japan Industrial Standard | European Standards | GOST | AFNOR | Werkstoff no |
| 317L Stainless Steel | S31703 | SUS 317L | X2CrNiMo18-15-4 | – | – | – | 1.4438 |
| 317 Stainless Steel | S31700 | – | SUS 317 | – | – | – | 1.4449 |
Manganese (Mn) : 1. Increase the quenchability, wear resistance and tensile strength;2. Removal of oxygen from molten metal by separate oxidation and separate vaporization;3. When added in large quantities, the hardness is enhanced, but the brittleness is improved.
Molybdenum (Mo) : 1. Enhanced strength, hardness, quenchability and toughness;2. Improve machinability and corrosion resistance.
Nickel (Ni) : 1. Enhance strength, hardness and corrosion resistance.
GradeTensile Strength (MPa) minElongation (% in 50mm) minYield Strength 0.2% Proof (MPa) minHardnessRockwell B (HR B) maxBrinell (HB) maxSS 317L
317 / 317L STAINLESS STEEL SHEET & PLATE CHEMICAL COMPOSITION
| Grade | SS 317 / 317L |
|---|---|
| C | 0.08 max / 0.035 max |
| Mn | 2.0 max |
| Si | 1.0 max |
| P | 0.045 max |
| S | 0.030 max |
| Cr | 18 – 20 |
| Mo | 3 – 4 |
| Ni | 11 – 15 |
| N | 57.845 min / 57.89 min |
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