Global Application, Export Market & QC Inspection Points of 304N1 Cold Rolled Stainless Steel Sheet

1. Main Downstream Application Fields

(1) Petrochemical & Food Processing Equipment (38% consumption)

Pressure vessel plates, heat exchanger tube sheet, fermentation tank inner lining, food-grade storage tank; high strength & medium corrosion resistance meet pressure equipment certification standard, replace thick-gauge 304 to lower equipment self-weight.

(2) Construction & Municipal Engineering (27%)

High-strength curtain wall support, outdoor lamp post, water storage tank, pipeline component, bridge auxiliary structure; outstanding atmospheric corrosion resistance for coastal humid & chloride-rich areas.

(3) Rail Transit & Auto Parts (20%)

Train carriage inner structural part, automotive exhaust fixing bracket, vehicle interior reinforced component; lightweight design cuts vehicle dead weight while satisfying mechanical load requirement.

(4) Precision Machinery & Medical Device (15%)

Medical instrument shell, precision equipment frame, environmental protection water treatment facility inner parts; BA high clean surface complies with food & medical hygiene standard.

2. China Export Market Layout & Demand Trend

China is the world's largest 304N1 cold rolled sheet producer (TISCO, Baosteel as core main mills), global supply share over 48%:

Southeast Asia (39% export): Vietnam, Thailand, Indonesia; booming chemical plant & urban infrastructure construction drives bulk procurement

Middle East (23%): Saudi Arabia, UAE; municipal water tank & building structural steel demand stable growth

Europe (20%): Germany, Italy; high-end food machinery & rail spare parts customized order

North America & Oceania (18%): Australia, Canada; coastal anti-corrosion engineering & petrochemical equipment raw material.Market trend: Global lightweight manufacturing upgrade makes 304N1 annual export growth keep 8%~12%, gradually substitute traditional thick 304 cold rolled sheet in high-load projects.

3. Foreign Trade QC & Packing Standard for Export

① Pre-shipment Material Inspection

Furnish official CoC certificate including heat number, full chemical composition & mechanical test data

Third-party test: SGS/BV chemical analysis & tensile test per ASTM A240 when client required

Surface inspection: 2B no roller mark/scratches/color difference; BA no fog spot, defective rate below 0.5%

② Dimensional Tolerance

Thickness tolerance ±0.02mm for standard grade, ±0.01mm for precision customized; width/length tolerance ±3mm, flatness ≤1mm/m

③ Export Seaworthy Packaging

Whole sheet covered blue/transparent PE anti-scratch film, fixed on fumigated wooden pallet with steel strip binding, moisture-proof waterproof paper wrapping; outer label marked grade, finish, thickness, size, heat number clearly.

4. Key Negotiation Terms for Foreign Trade

Price clause: FOB/CIF; product price linked with nickel raw material market fluctuation same as 304 stainless steel

Lead time: Standard 2B stock goods 7~10 days; customized BA/8K mirror finish 15~22 days

Quality claim: Buyer can submit inspection claim within 7 working days after goods arrival at destination port.