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Cold rolled steel coil

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Steel Coil / Plate

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Steel coil Low Carbon Steel Cold Rolled Coil Cold rolled coil Smooth surface steel coil

Product Description

what is a Cold rolled steel coil
Cold-rolled steel coil (CR Coil) is a high-quality flat steel product that is manufactured from cold-rolled coil at room temperature with excellent surface quality and mechanical properties. CR coils have a very smooth surface (suitable for painting/coating), tight dimensional tolerances (±0.02mm), and work hardening for enhanced strength, providing excellent performance in precision applications such as automotive body panels, appliances, electronics, and building components. Available in (SPCC, DC01, ASTM A1008) grades and finishes (oiled, passivated), it offers better formability and maintains higher hardness and precision than hot-rolled alternatives.

Specifications

Thickness	0.4-3.2mm
Width	600-1500mm
Length	2000-3000m

Special specifications can be customized

Time of delivery：15days

Material

Q195A-Q235A、Q195AF-Q235AF、Q295A(B)-Q345 A(B);SPCC、SPCD、SPCE、ST12-15;DC01-06

Product Benefits

1. Good surface quality

2. High surface finish

3. Wide range of applications

4. High dimensional accuracy

5. Easy to process

Application

1. automobile manufacturing

2. electrical products

3. Locomotives

4. aviation

5. precision instruments

6. canned food

Production Process

Cold rolled steel coil are made of hot rolled coils and are rolled at room temperature below the recrystallization temperature. They include plates and coils. The ones delivered in sheets are called steel plates, also called box plates or flat plates; the ones delivered in long lengths in coils are called steel strips, also called coils. It is rolling under recrystallization, but it is generally understood as rolling using room temperature rolled materials. Aluminum cold rolling is divided into plate rolling and foil rolling. Plates with a thickness of 0.15~ or more are called plates, and foils with a thickness of 0.15~ or less are called foils. Europe and the United States mostly use 3 to 6 continuous rolling mills as cold rolling equipment.

Raw materials → weighing, measuring width and diameter → uncoiling → cutting ends and tails → welding, punching, punching → pickling → rinsing, drying → circular shears → rolling → curling → shearing and splitting → weighing and bundling

Product mechanical properties

Grade	Yield strength Mpa	Tensile strength Mpa	Elongation %	Plastic strain ratio	Strain hardening index
DC01	140~280	270~410	≥28
DC02	140~240	270~370	≥34	≥1.4
DC03	120~210	270~350	≥38	≥1.8	≥0.18
DC04	120~180	270~330	≥40	≥2.0	≥0.20
SPCC	130~300	270~410
SPCD	120~240	270~370		≥1.3
SPCE	120~210	270~350		≥1.8	≥0.18

Product Standards

GB/T 708 EN 10130:1998 JISG3141:2005

FAQ
Why is cold rolled steel more expensive?
The main reason why cold-rolled steel is more expensive is its fine machining and superior properties: compared to hot-rolled steel, cold-rolled steel has higher strength (work hardening), more precise dimensions (±0.02mm) and a smoother surface due to additional processes such as room temperature rolling and annealing. Although the average price is 20-50% higher, it eliminates the cost of subsequent processing and meets the needs of industries with strict requirements for precision and surface.