Gnee Steel (tianjin) Co., Ltd
+8615824687445

Cold Rolled DC01 DC03 DC04 Zinc Coated Roll Price Galvanized Steel Coil for Roofing

Oct 30, 2025

Application Areas of cold-rolled steel

 

cold-rolled steel

Cold rolling is the process of plastically deforming hot-rolled, pickled steel coils through a rolling mill at room temperature. In today's highly sophisticated and automated manufacturing industry, the selection and pretreatment of raw materials directly determine the quality, cost, and market competitiveness of the final product.

Cold-rolled steel coil and sheet, with their superior surface quality, precise dimensional tolerances, and excellent mechanical properties, have become the material of choice for high-end applications such as automotive manufacturing, home appliances, precision instruments, and architectural decoration.

Industry Typical Applications Recommended Material Grades and Properties
Automotive Manufacturing Interior body components, brackets, seat rails, bumper reinforcement beams, battery pack housings DC01/DC03/DC04 (deep drawing), HC340/420LA (high-strength steel), requiring high formability and strength
Home Appliance Industry Refrigerator, washing machine, air conditioner, microwave oven housings, internal components, back panels, and covers SPCC, SECC (galvanized), high surface requirements, requiring good spray adhesion
Electronics and electrical appliances Cabinets, distribution boxes, server housings, electromagnetic shielding covers SPCC, SECC (fingerprint-resistant), SGCC, requiring excellent flatness and precise dimensions
Architectural Decoration Metal ceilings, partitions, light steel keels, skirting boards, and lighting housings SPCC and DC01, surface treatments such as lamination and spray coating are available
Furniture Industry File cabinets, storage cabinets, desk partitions, supermarket shelves, display racks SPCC, ST12, requiring excellent bending and welding properties
General Hardware Various stampings, sheet metal parts, security door panels, kitchen equipment, and appliance housings SPCC, DC01, deep-drawn or standard commercial grade depending on complexity

 

  • Product Specifications

Material

A36,A53,ASTM A106,JIS S400Q235B,Q235C,Q235D,Q345E,Q345,Q390B,Q390C,
Q390D,Q390E,Q420,Q420B,Q420C,Q420DQ420E,
Q460,Q460D,Q500C,Q500D,,Q550C,Q550D,
Q550E,Q620C,Q620D,Q620E,Q690A,Q690B,Q690C,
Q690D,Q690E,Q690D,Q690C,Q890C,Q890D
16Mo3,16MnL,16MnR ,16Mng,16MnDR

Wall Thickness

0.17mm-37mm

Width

600mm-1250mm

Tolerance

Thickness:±0.03mm, Width: ±50mm, Length: ±50mm

Surface Treatment

Top paint: PVDF, HDP, SMP, PE, PU
Prime paint: polyurethane, epoxy, PE
Back paint: epoxy, modified polyester

Application

Widely used in roofing sheet, window-shades, car ceiling, the shell of the car, air conditioner, outer shell of water machine, steel structure, etc

Advantages

1. Reasonable price with excellent quality
2. Abundant stock and prompt delivery
3. Rich supply and export experience, sincere service

Packing

Tied up with steel strips and wrapped with water-proof paper

 

  • Our Service Commitment


Reliable Quality: We guarantee genuine materials and provide a warranty (MTC). Processing precision strictly meets agreed standards.

 

On-Time Delivery: We have established a comprehensive supply chain system, and urgent orders can be expedited through negotiation.

 

Transparent Pricing: We provide clear quotes, including material, processing, packaging, and shipping costs, with no hidden charges.

 

Attentive Service: We have a dedicated customer service manager who will follow up with you from inquiry to after-sales service, ensuring timely response to your needs.

cold-rolled steel