Low-Carbon Austenitic Grade · Enhanced Resistance to Pitting & Crevice Corrosion · Superior Weldability · Global Industrial Supply
317L stainless steel plate is a low-carbon, austenitic stainless steel alloy that offers enhanced corrosion resistance compared to standard grades like 316L. It contains higher levels of molybdenum, which significantly improves its resistance to pitting and crevice corrosion, especially in chloride-rich environments. The performance of 317L stainless steel plates is based on the formation of a passive chromium oxide layer on the surface.
HRS Ferritic is a trusted 317L stainless steel Plate Supplier and Stockist, offering high-quality plates sourced from globally certified manufacturers for chemical, marine, and oil & gas sectors.
The addition of molybdenum and low carbon content ensures that 317L plates perform efficiently in harsh chemical and marine environments.
ASTM A240 · ASME SA240 · UNS S31703 · EN 1.4438
| Specification | Details |
|---|---|
| ASTM / ASME | ASTM A240 / ASME SA240 (Plate, Sheet, and Strip) |
| UNS | UNS S31703 |
| EN / DIN | EN 1.4438 / DIN 1.4438 / X2CrNiMo18‑15‑4 |
| ISO | ISO 18 15 3 L / 19 13 4 L |
| JIS | SUS 317L |
| Product Form | Sheets / Plates |
| Thickness Range | 0.5 mm to 100 mm |
| Standard Widths | 1000, 1219, 1250, 1500, 1800, 2000, 2500, 3000, 3500 mm |
| Standard Lengths | 2000, 2440, 2500, 3000, 5800, 6000 mm |
| Surface Finish | Hot Rolled (HR), Cold Rolled (CR), Annealed & Pickled (AP) |
| Supply Condition | Solution Annealed |
| Cutting Methods | Plasma, Laser, Waterjet, Oxy Propane |
| Packaging | Bundled, Wooden Plates, Bubble Wrap, Customized |
Precision sheets, heavy plates, and shim sheets for high-corrosion industrial use.
Slitting coils, perforated coils, and thin foils from 0.05 mm for specialized applications.
Circles, rings, custom-cut blanks, and chequered (tread) plates available to size.
Mill edge, slit edge, round edge, and square edge available as per customer requirement.
16.0–18.0% — Primary element for corrosion and rust resistance.
3.0–4.0% — Enhances resistance to pitting and chemical attack.
10.0–14.0% — Increases toughness and ductility in marine use.
≤ 0.03% — Low carbon levels to improve weldability and sensitization resistance.
490–640 MPa — High strength for critical industrial applications.
205–320 MPa — Excellent structural foundation for pressure vessels.
≥ 40% — Superior ductility for complex forming and fabrication.
180–220 HB — Optimized hardness for long service life and reliability.
We supply a diverse range of 317L plates processed for specific industrial corrosion requirements.
The working mechanism of 317L is based on higher molybdenum alloying which forms a protective layer against localized corrosion and pitting.
| Element | Typical Percentage (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 3.0 – 4.0 |
| Carbon (C) | ≤ 0.030 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance (~60–65%) |
317L is internationally recognized for its superior corrosion resistance in acidic and chloride environments.
| Standard / System | Equivalent Grade / Designation |
|---|---|
| UNS / AISI (USA) | S31703 |
| ASTM / ASME | ASTM A240 Type 317L |
| EN (Europe) | 1.4438 / X2CrNiMo18‑15‑4 |
| ISO (International) | 18 15 3 L / 19 13 4 L |
| DIN (Germany) | 1.4438 / X2CrNiMo18‑15‑4 |
| JIS (Japan) | SUS 317L |
| BS (UK) | 317S16 / 317S12 |
| AFNOR / NF (France) | Z3CND18‑13‑05 |
| GB (China) | 00Cr19Ni13Mo3 |
| GOST (Russia / CIS) | 03Х17Н14М3 |
| UNI (Italy) | X2CrNiMo18‑15‑4 |
| AS (Australia) | AS 1449 317L |
HRS Ferritic is known for delivering reliable and high-performance stainless steel solutions for demanding industrial applications. As a specialized 317L Plate Supplier and Stockist, we source from valuable global manufacturers without compromising on precision or quality. Trusted by industries for authentic materials conforming to the highest engineering standards.
Quick answers to common queries about 317L Stainless Steel Plate.