CNBM (China National Building Material Group Corporation) is a global leader in building materials, offering high-quality 304 stainless steel with international standard compliance and professional solutions.
1. Core Standards & Composition
Our 304 stainless steel meets AISI 304, SUS 304, and GB/T 1220-2007 standards. Key composition: 8.00%-10.50% nickel (enhances toughness), 18.00%-20.00% chromium (forms anti-corrosion film), ≤0.08% carbon (avoids brittleness). Impurities are strictly controlled, ensuring stable performance for food, construction, and industrial use.
2. Key Performance
Strength & Machinability: Density 7.93 g/cm³, melting point 1450-1480℃. Tensile strength ≥520 MPa, elongation ≥40% (easy to stamp/bend), hardness ≤205 HB (scratch-resistant). Suitable for structural parts and daily items.
Corrosion Resistance: Self-healing chromium oxide film. Passes ASTM B117 salt spray test (≥48 hours, no rust). Resists weak acids/alkalis and humidity, ideal for food-contact gear and outdoor decor. For coastal areas, we offer material advice.
3. Applications & Customization
Key Fields: Food industry (FDA-compliant, no heavy metal leaching), construction (facades/handrails, 10+ year outdoor life), industrial (mechanical enclosures, pipelines).
Customization: Size (plates 0.3-100mm thick, pipes φ6-φ500mm), surface (coatings/engraving), performance (heat treatment adjustment). Send specs via WhatsApp for a 48-hour quote.
4. Quality & Support
Quality Control: Raw material inspection, real-time production monitoring, final performance testing. Every order includes a quality report.
After-Sales: 7-15 days delivery for standard products, on-site guidance if needed, regular follow-ups.
We're ready to meet your 304 stainless steel needs!
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