Steel Coils

1. Raw Material Preparation: 

Selection of high-quality steel slabs based on product grade (carbon/stainless steel).

2. Hot Rolling: 

Heating steel slabs to high temperatures, then rolling into thin strips for hot rolled (HR) carbon steel coils—delivers high strength.

3. Cold Rolling: 

Further rolling HR strips at room temperature for cold rolled (CR) coils—achieves precision thickness and smooth surface.

4. Optional Treatments:

Galvanizing: Hot-dip galvanizing (GI/GL) or electro-galvanizing to add corrosion-resistant zinc coating.

Pre-Painting: Applying custom colors/coatings to galvanized coils (PPGI/PPGL) for aesthetic and protective purposes.

Annealing: Heat treatment for stainless steel coils to enhance ductility and corrosion resistance.

5. Coiling: 

Winding processed steel strips into continuous coils of standard weights.

6. Testing & Inspection: 

Chemical composition analysis, mechanical performance testing (tensile, yield strength), and surface quality checks.

7. Packaging: 

Seaworthy packaging for global shipping.

Tailored Strength & Formability: 

Carbon steel coils (HR/CR) offer excellent stamping, bending, and welding capabilities for mass production.

Superior Corrosion Resistance: 

Galvanized/pre-painted carbon steel and stainless steel coils (304/316L) resist humidity, salt spray, and chemicals.

Heat Resistance: 

Stainless steel coils perform well in high-temperature environments, ideal for industrial and chemical applications.

Cost-Effective Versatility: 

Carbon steel coils suit budget-conscious projects; stainless steel delivers long-term durability for specialized needs.

Aesthetic Flexibility: 

Pre-painted coils (custom colors) and stainless steel finishes (brushed, mirror) meet decorative/architectural demands.

Efficient Processing: 

Coiled form enables continuous production, reducing manufacturing downtime for automotive, appliance, and construction industries.

Our Steel Coils comply with international and regional standards for global project approval:

• International Standards: ASTM, JIS, EN, GB, ISO
• Specific Standards: ASTM A36/A569/A1008 (carbon steel), ASTM A240 (stainless steel), EN 10088 (stainless steel)
• Quality Certifications: ISO 9001, SGS, Material Test Certificates (MTC)
• Regional Compliance: SASO (Middle East), SONCAP (Africa), SNI (Indonesia), TIS (Thailand), BIS (India)
• All orders include compliance documents and test reports for customs clearance.

Packaging

• Standard Packaging: Coils wrapped in waterproof paper, secured with steel straps, and placed on ISPM 15-certified wooden pallets.
• Export Packaging: Seaworthy wrapping with additional moisture-proof film for humid/coastal regions, preventing rust during long-distance shipping.
• Stainless Steel Coils: Protected with anti-scratch paper between layers to preserve surface finishes (2B, BA, mirror).
• Clear English labeling includes product type, grade, thickness, width, coil weight, and batch number.

Shipping

• Lead Time: Standard orders (≤50 MT): 15-25 working days; Bulk orders (＞50 MT): 25-35 working days; Custom pre-painted coils: 20-30 working days.
• Logistics Partners: Maersk, CMA CGM, Aramex, and regional carriers for inland delivery.
• Delivery Coverage: Port-to-port, door-to-door for major cities, and inland transport to manufacturing facilities.
• Global Reach: Supply to all regions with tailored shipping solutions for each market.

RFQ Question: Do your galvanized steel coils resist coastal humidity? What’s the delivery time?

Answer: Yes, our galvanized (GI/GL) coils (DX51D/SGCC) offer strong corrosion resistance against coastal humidity. Standard orders deliver in 15-20 working days, with full regional compliance certificates.

RFQ Question: Need 304 stainless steel coils for food processing—are they food-grade? Lead time?

Answer: Our 304/304L stainless steel coils are food-grade, with 2B/BA hygienic finishes. They resist acid/alkali and meet global food safety standards. Delivery takes 18-25 working days.

RFQ Question: Can you supply pre-painted coils with custom colors for construction roofing? Delivery in 25 days possible?

Answer: Yes, we offer pre-painted (PPGI/PPGL) coils with custom colors for roofing. They’re UV-resistant for desert/hot climates, and 25-day delivery is guaranteed for standard orders.

RFQ Question: What grade of carbon steel coils is suitable for automotive stamping? What’s the warranty?

Answer: Our CR carbon steel coils (DC01/ASTM A1008) are ideal for automotive stamping—excellent formability and weldability. They come with a 1-year warranty against manufacturing defects, delivering in 16-22 working days.

RFQ Question: Do your HR carbon steel coils withstand tropical rains for structural use? Lead time?

Answer: Our HR carbon steel coils (ASTM A36) are durable for structural frames, with optional galvanizing for enhanced rain resistance. Delivery takes 15-20 working days, with dimensional consistency for easy processing.