1. Material Standards & Grades

Primary Standards:

• ASTM A1008 - Cold-Rolled Carbon Steel Sheet

• JIS G3141 - Cold-Rolled Carbon Steel Sheets and Strips

• GB/T 11253 - Cold-rolled carbon steel sheets and strips

• EN 10130 - Cold-rolled low-carbon steel flat products for cold forming

Common Commercial Grades:

2. Chemical Composition (% by weight)

3. Mechanical Properties

4. Physical Properties

5. Product Specifications

6. Manufacturing Process

Production Steps:

• Pickling of hot-rolled coils

• Cold rolling reduction (40-90%)

• Annealing (batch or continuous)

• Skin passing/temper rolling

• Inspection and packaging

Key Process Parameters:

• Rolling reduction: 40-90%

• Annealing temperature: 600-720°C

• Skin pass reduction: 0.5-2.0%

7. Surface Finish Options

Standard Tests:

• Tensile test

• Bend test (180°)

• Hardness test

• Chemical analysis

• Surface roughness measurement

• Dimensional inspection

• Surface quality inspection

Optional Tests:

• Cupping test (Erichsen)

• Rockwell hardness test

• Microstructure examination

• Non-destructive testing

• Third-party inspection

9. Applications

Primary Applications:

• Automotive: Body panels, structural components

• Home Appliances: Refrigerators, washing machines, air conditioners

• Electronics: Computer cases, office equipment

• Construction: Decorative panels, roofing

• General Manufacturing: Furniture, containers, metal products

Secondary Processing:

• Galvanizing substrate

• Painting and coating

• Stamping and forming

• Welding and fabrication

• Electroplating

All cold-rolled carbon steel coils are manufactured according to international standards and can be customized to meet specific customer requirements and application needs.