316L stainless steel is a low-carbon austenitic grade containing 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. The addition of molybdenum provides superior pitting and crevice corrosion resistance compared to 304, especially in chloride environments. The low carbon content (≤0.03%) eliminates carbide precipitation during welding, making 316L the preferred grade for welded components. Designated as 022Cr17Ni12Mo2 (GB/T, China), SUS316L (JIS, Japan), and 1.4404 (EN, Europe).
Chemical Composition
Maximum allowable content (% by mass) per ASTM A240 / EN 10088.
| Grade | C (%) | Cr (%) | Ni (%) | Mo (%) | Type |
|---|---|---|---|---|---|
| 316L / 022Cr17Ni12Mo2 | ≤0.03 | 16–18 | 10–14 | 2–3 | Austenitic |
Mechanical Properties
| Grade | Yield (MPa) | Tensile (MPa) | Elongation (%) | Hardness (HV) |
|---|---|---|---|---|
| 316L | ≥170 | ≥485 | ≥40 | ≤220 |
Available Sizes & Delivery
| Thickness | 0.3–100 mm |
| Width | 1000–3000 mm |
| Surface Finishes | 2B, BA, No.4, HL, 8K mirror, embossed |
| Forms Available | Plate, coil, sheet, round bar, seamless/welded pipe |
| Standard | GB/T 20878 / ASTM A240 / JIS G4304 / EN 10088 |
| Mill Test Certificate | EN 10204 3.1 with every shipment |
| MOQ | 3 Tons |
| Delivery Time | Within 7 days (≤500 tons) |
Equivalent Grades
| Standard | Grade | Country |
|---|---|---|
| GB/T 20878 | 022Cr17Ni12Mo2 | China |
| ASTM A240 | 316L / S31603 | USA |
| JIS G4304 | SUS316L | Japan |
| EN 10088 | 1.4404 / X2CrNiMo17-12-2 | Europe |
Applications
- Marine and coastal equipment — superior chloride corrosion resistance
- Chemical processing — tanks, reactors, heat exchangers
- Pharmaceutical and biotech equipment
- Food and dairy processing (welded joints, no sensitization)
- Medical implants and surgical instruments
- Pulp and paper industry equipment
Values are typical reference ranges per ASTM A240. Actual properties may vary by mill and production route. Mill test certificates (EN 10204 3.1) are supplied with every shipment — contact us for exact data sheets.
