Description
Certifications You Can Trust
| Industry | Compliance | Key Validation |
|---|
| Food & Beverage | FDA 21 CFR 177.1520 | 3-A Sanitary Standard (EHEDG Certified) |
| Construction | ASTM A240/A480 | LEED v5 Recycled Content (70% minimum) |
| Medical Devices | ISO 13485:2023 | Passivation per ASTM A967 (Citric Acid) |
| Consumer Goods | EU REACH & RoHS 3 | 1.000h Salt Spray Resistance (ISO 9227) |
| Global Standards | JIS G4303 (SUS 304) | GB/T 3280 (China) & KS D3503 (Korea) |
Why 304 Outperforms Alternatives
1. Balanced Chemistry for Real-World Needs
Chromium (18–20%): Forms a self-repairing oxide layer to block rust in humid or acidic settings.
Nickel (8–10.5%): Maintains ductility for bending and welding without cracking.
Low Carbon (≤0.08%): Reduces weld decay risk, ideal for tanks and piping systems.
2. Surface Ready for Any Finish
2B Mill Finish: Smooth, slightly reflective surface (Ra ≤0.3μm) for industrial machinery.
BA (Bright Annealed): Mirror-like polish (85% reflectivity) for elevator panels and signage.
Custom Textures: Embossed, hairline, or PVD-coated options for designer appliances.
Performance at a Glance
| Feature | 304 Advantage | Real-World Proof |
|---|
| Corrosion Resistance | Withstands coffee, vinegar, and urban pollution | 10-year exposure test in coastal cities |
| Temperature Tolerance | -196°C to 870°C (non-load bearing) | Used in cryogenic storage and oven liners |
| Fabrication Ease | 45% elongation (cold-rolled) for deep drawing | Formed into sinks, pots, and HVAC ducts |
| Hygiene | Bacteria-resistant surface (ISO 22196) | Approved for surgical tool trays and sinks |
| Eco-Footprint | 92% recyclable with SCS Global Certification | Reduces landfill waste vs. coated carbon steel |
Where 304 Shines
| Sector | Top Applications |
|---|
| Food Service | Brewery tanks, conveyor belts, cutlery |
| Healthcare | Instrument sterilizers, IV pole components |
| Architecture | Handrails, window frames, subway station cladding |
| Energy | Solar panel mounts, heat exchanger plates |
| Home Essentials | Refrigerator interiors, dishwasher drums, cookware |
Expert Tips for Optimal Use
Q1: Can 304 handle outdoor coastal climates?
A: Suitable for mild coastal areas with routine cleaning; for harsh salt spray, consider 316.
Q2: Best welding method for thin 304 coils?
A: TIG welding with ER308L filler minimizes distortion on sheets <1.5mm.
Q3: How to remove surface scratches?
A: Polish with 220–600 grit sandpaper in the grain direction, then buff with stainless cleaner.
Order with Confidence
Thickness & Width: 0.2mm–8.0mm (±0.02mm) / 300mm–1.500mm (±0.3mm)
Global Stockpiles: Same-day pickup from Rotterdam, Dallas, and Shanghai hubs
Quality Assurance: Batch-tested with PMI (Positive Material Identification) reports
Sustainability: Carbon footprint tracking via blockchain (ISO 14064-2)
Keywords: 304 Stainless Coil, Austenitic Steel Coil, Food-Grade Stainless, Medical Stainless Steel, Recyclable Steel Coil
