Coil
- Our coils are rolled from premium carbon, alloy and stainless steel, featuring uniform thickness, smooth surface and stable mechanical performance. Available in hot rolled, cold rolled and galvanized types with customized width & thickness. Strict rolling and annealing treatment guarantees flatness and ductility. Pass full lab tests to meet global standards. Widely used in machinery, construction, auto, pressure vessel, pipeline and metal processing industries.
Certified
All coils come with complete factory test certificates covering chemical composition, tensile test, hardness, flatness and surface inspection. Comply with ISO, ASTM, EN, DIN, JIS standards. EN 10204 3.1/3.2 mill certificates and third-party inspection documents are available on request, enabling full quality traceability for worldwide buyers.
Application
Steel coils are fundamental raw materials for all metal manufacturing sectors. In construction, HR & CR coils are processed into steel plates, structural frames, guardrails and roofing panels for buildings, bridges and infrastructure. Automotive industry uses galvanized and stainless coils to produce car body shells, chassis parts and anti-corrosion vehicle components. Pressure vessel and pipeline factories adopt high-strength alloy coils to fabricate storage tanks and transport pipes for oil, gas and chemical media. Mechanical processing relies on ductile steel coils for stamping, cutting and bending machine parts. Galvanized coils are popular for outdoor ventilation ducts, water pipes and electrical cabinets with superior rust resistance. Food, pharmaceutical and marine industries select sanitary stainless coils to make corrosion-resistant equipment and seawater-proof structures, meeting strict anti-pollution and anti-oxidation requirements.
Specification
1. Product Specification
Parameter | Detailed Specification |
Product Type | Hot Rolled Coil(HRC), Cold Rolled Coil(CRC), Galvanized Coil(GI), Stainless Steel Coil, Alloy Steel Coil, Pickled Coil |
Thickness Range | 0.12mm – 20mm, customizable |
Width Range | 600mm – 2000mm, customizable |
Inner Diameter | 508mm / 610mm, customized ID available |
Weight Per Coil | 3–25 tons |
Surface Treatment | Pickled & Oiled, Galvanized, Annealed, Bright Polished, Anti-rust Coating |
Manufacturing Process | Smelting → Continuous Casting → Hot Rolling → Cold Rolling → Annealing → Surface Finishing |
Applicable Standards | ASTM A36, A1011, A240, EN 10130, EN 10142, DIN 17100, JIS G3131, GB/T, ISO |
Material Grades | Carbon Steel: Q235B, Q355B, SPHC, SPCC, DC01 / Stainless Steel: 201, 304, 304L, 316, 316L, 321 / Alloy Steel: 4130, 4140, 16Mn, P265GH |
2. Chemical Composition
Grade | C | Si | Mn | P | S | Cr | Ni | Mo |
SPHC | ≤0.12 | ≤0.30 | ≤0.60 | ≤0.035 | ≤0.035 | - | - | - |
SPCC | ≤0.08 | ≤0.30 | ≤0.40 | ≤0.030 | ≤0.030 | - | - | - |
Q355B | ≤0.20 | ≤0.50 | 1.00–1.60 | ≤0.035 | ≤0.035 | - | - | - |
304 | ≤0.08 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.00–10.5 | - |
316L | ≤0.03 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 |
P265GH | ≤0.20 | ≤0.40 | 0.80–1.40 | ≤0.030 | ≤0.020 | - | - | - |
Standard
Classification | Grade | Applicable Standard | Key Chemical Composition (wt%) | Key Mechanical Properties (Room Temperature) |
Carbon Structural Steel | SPHC | JIS G3131 | C ≤ 0.12 Mn ≤ 0.60 S ≤ 0.035 P ≤ 0.035 | TS ≥ 270MPa YS ≥ 180MPa EL ≥ 27% |
SPCC | JIS G3131 | C ≤ 0.08 Mn ≤ 0.40, S ≤ 0.030 P ≤ 0.030 | TS ≥ 270MPa YS ≥ 140MPa EL ≥ 34% | |
Q355B | GB/T 1591 | C ≤ 0.20 Mn 1.00 ~ 1.60 S ≤ 0.035 P ≤ 0.035 | TS ≥ 470MPa YS ≥ 355MPa EL ≥ 21% | |
Pressure Vessel Steel | P265GH | EN 10028-2 | C ≤ 0.20 Mn 0.80 ~ 1.40 S ≤ 0.020 P ≤ 0.030 | TS 410 – 530MPa YS ≥ 265MPa EL ≥ 25% |
Austenitic Stainless Steel | 304 | ASTM A240 | C ≤ 0.08 Cr 18.0 ~ 20.0 Ni 8.0 ~ 10.5 | TS ≥ 520MPa YS ≥ 205MPa EL ≥ 35% |
316L | ASTM A240 | C ≤ 0.03 Cr 16.0 ~ 18.0 Ni 10.0 ~ 14.0 Mo 2.0 ~ 3.0 | TS ≥ 480MPa YS ≥ 170MPa EL ≥ 40% |
Process
Packing
