316L Stainless Steel Plate — Mill-Certified Supply & Custom Fabrication
ZEMSS supplies 316L stainless steel plate from mill-certified stock with full traceability to heat number. Each plate ships with a material test report (MTR) confirming chemical composition and mechanical properties to ASTM A240 or EN 1.4404. Cut-to-size, polished, or further fabricated at our 12,000㎡ Taiyuan facility — one supplier from raw material to finished component.
316L (low-carbon variant of 316) is the standard specification for corrosion-critical environments: chemical processing, pharmaceutical equipment, coastal infrastructure, and food production. The 0.03% maximum carbon ceiling eliminates sensitisation during welding, making it the preferred grade for fabricated assemblies that undergo multi-pass welding or post-weld annealing.
Product Specifications
| Parameter | Specification |
|---|---|
| Grade | 316L (UNS S31603) / EN 1.4404 |
| Standard | ASTM A240 · EN 10028-7 · JIS G4304 / G4305 |
| Thickness | 0.5mm – 80mm (sheet & heavy plate) |
| Width | Up to 2,000mm (standard) · narrow strip on request |
| Length | Up to 6,000mm · custom cut available |
| Surface Finish | No.1 · 2B · BA · No.4 · No.8 Mirror · Electropolished |
| Form | Sheet · Coil · Cut-to-size plate |
| Edge Condition | Mill edge · slit edge · laser-cut edge (deburr optional) |
| MOQ | From 1 sheet · no minimum surcharge |
| Lead Time | Stock sizes: 3–7 days · custom cut / finish: 7–20 days |
Chemical Composition (ASTM A240 / EN 1.4404)
| C max | Cr | Ni | Mo | Mn max | Si max |
|---|---|---|---|---|---|
| 0.030% | 16.0–18.0% | 10.0–14.0% | 2.0–3.0% | 2.0% | 0.75% |
Surface Finish Guide
| Finish | Description | Typical Use |
|---|---|---|
| No.1 | Hot-rolled, annealed, descaled. Rough matte surface. | Heavy industrial, structural fabrication |
| 2B | Cold-rolled, annealed, skin-passed. Smooth, low reflectivity. Standard mill finish. | Chemical processing, food equipment, general fabrication |
| BA | Bright annealed. High reflectivity, smooth. Better corrosion resistance than 2B. | Pharmaceutical, food, decorative panels |
| No.4 | Brushed / satin finish. Unidirectional grain, Ra 0.5–1.0µm. | Kitchen equipment, architectural, site furnishings |
| No.8 Mirror | High-gloss mirror polish. Ra ≤ 0.1µm. Protective film applied. | Decorative, architectural cladding, luxury fitout |
| Electropolished | Electrochemically polished. Ra ≤ 0.5µm. Reduces surface iron, enhances passivation layer. | Pharmaceutical GMP, cleanroom, ultra-hygienic |
Key Properties
- Superior chloride resistance — 2–3% Mo content prevents pitting and crevice corrosion in saltwater, coastal, and chloride-rich environments where 304 fails.
- Low-carbon weld-friendly — “L” suffix limits carbon to 0.03% max. Eliminates carbide precipitation during welding (sensitisation), removing the need for post-weld annealing in most applications.
- Wide temperature range — Continuous service from cryogenic temperatures up to 870°C (1,600°F). Preferred for both low-temperature process piping and elevated-temperature chemical reactors.
- Full food and pharma compliance — Meets FDA 21 CFR, EU 1935/2004 food contact requirements and GMP surface finish standards.
- Non-magnetic in annealed state — Fully austenitic structure with negligible magnetic permeability. Cold work increases permeability slightly.
Applications
- Chemical processing — Reactor vessels, storage tanks, heat exchanger plates, process piping in chloride-containing media
- Pharmaceutical & biotech — GMP vessels, clean-room panels, sanitary tubing, electropolished contact surfaces
- Food & beverage — Hygienic tanks, conveyor surfaces, dairy equipment, brewing vessels
- Coastal & marine infrastructure — Site furnishings, drainage grates, manhole covers in saline environments
- Desalination & water treatment — Pressure vessels, membrane housings, chlorine-resistant pipework
- Architecture — Exterior cladding, curtain wall framing, column covers in coastal or urban polluted environments
Why Source from ZEMSS
- Mill-direct traceability — All plate sourced from BAOWU, TISCO, and POSCO with full heat-number records. MTR provided as standard.
- One-stop fabrication — Cut-to-size, laser cutting, bending, rolling, welding, and surface treatment at the same facility. No re-shipping between suppliers.
- ISO triple certification — ISO 9001 / 14001 / 45001, certified by China Classification Society (CCS), IAF-recognised.
- MOQ from 1 sheet — No minimum order surcharges. Prototype quantities welcome.
- Competitive lead time — Stock sheet: 3–7 days. Custom cut-to-size: 7–20 days. Export packing and FOB Taiyuan standard.
How to Order
To prepare your quotation, provide the following information:
- Grade confirmation: 316L (or 316 if L grade not required)
- Thickness × Width × Length (mm) — or send a DXF/DWG cut list
- Surface finish: 2B / No.4 / BA / Mirror / Electropolished
- Quantity (sheets or kg)
- Destination port and Incoterm (FOB / CIF / EXW)
- Standard required: ASTM A240, EN 1.4404, or JIS G4304
We respond with a quotation and lead time within 2 business hours during UTC+8 working hours.
