The 304 stainless steel sheet is FDA/NSF certified, corrosion-resistant, and non-magnetic, available in 2B, BA, HL, and mirror finishes with sizes up to 2000×6000 mm.
| Element | Content (%) | Functional Role |
|---|---|---|
| C (Carbon) | ≤0.07 | Low-carbon design reduces risk of intergranular corrosion during welding, meeting food-contact welding requirements. |
| Cr (Chromium) | 17.0–19.0 | Forms Cr₂O₃ passive film to resist oxidative corrosion in food processing environments; oxide film repair rate 0.5nm/h. |
| Ni (Nickel) | 8.0–10.0 | Stabilizes austenitic structure; retains ≥85% toughness at -196℃; prevents protein-deposition-induced corrosion. |
| Mn (Manganese) | ≤2.0 | Controls work hardening index n=0.22, improving formability for deep drawing in food equipment (e.g., beverage can molds). |
Physical Properties: Density 7.93g/cm³, melting point 1398–1454℃, tensile strength ≥520MPa, elongation ≥40%, impact energy ≥34J at -20℃.
Chemical Properties: Corrosion rate ≤0.01mm/year in 5% citric acid solution (60℃); pitting potential ≥+300mV in 3000ppm chloride seawater; passivation film electrochemical corrosion current density ≤1μA/cm².
Grade: 304 stainless steel (ASTM A240, UNS S30400).
Thickness Range: 0.1–6.0mm (TISCO ultra-thin from 0.1mm; private mills standard 0.3–3.0mm).
Width: 600–2000mm (cutting precision ±1mm); common widths: 1000mm, 1219mm, 1500mm, 2000mm.
Length: Up to 6000mm, custom cut available (tolerance ±2mm).
Surface Finishes: 2B (Ra≤1.6μm), BA (Ra≤0.1μm), 8K mirror (Ra≤0.05μm), HL brushed (Ra≤0.8μm).
Stainless Steel Plate Bending/Stamping Process
Stainless Steel Plates on Storage Rack
Palletized Stainless Steel Plates
Stainless Steel Plate Rolling Line
Precision Thickness Inspection of Stainless Steel Plate
Forklift Loading Stainless Steel Plates for Shipment
Specification: 2.0mm × 1500mm BA plate
Advantage: The passivation film prevents milk scale adhesion, extending the cleaning cycle up to three times.
Case: Yili Dairy fermentation tank lining.
Specification: 0.5mm × 1219mm 8K plate
Advantage: The mirror surface reduces dough sticking and improves demolding efficiency by 30%.
Case: SanNeng custom baking molds.
Specification: 1.2mm × 2000mm HL plate
Advantage: The brushed surface is anti-fingerprint and achieves wear resistance ≥2000 cycles.
Case: Haidilao kitchen engineering.
Specification: 1.5mm × 1800mm 2B plate
Advantage: Resistant to weak alkaline corrosion, ensuring a service life of more than 10 years.
Case: Nongfu Spring bottling line piping.
TISCO uses 20-roll Sendzimir mill with ±0.05 mm tolerance at 1.0 mm; private mills offer cost savings (~15%) with ±0.1 mm tolerance.
Acid pickling + passivation to enhance durability.
Salt spray test (ASTM B117), food migration test (GB 4806.9), tensile and impact test reports provided with each batch.
Regular thickness (0.5–3.0 mm) ready-stock with MOQ 2 tons; ultra-thin (<0.3 mm) or thick sheets (>4.0 mm) available with 15–20 day lead time.
Full compliance with ASTM A240 and food-grade regulations
Multiple finishes available for hygienic and aesthetic applications
Reliable stock, customizable sizes, and quick lead time
Technical support with MTR and testing reports for every order
Walmay will help match the right stainless product form and specification for your application, confirm quantities and packing needs, and provide requested documents based on order requirements.
