Cold Rolled Steel Sheet and Coil

Cold Rolled Steel Sheet and Coil
Cold Rolled Steel Sheet and Coil
Cold Rolled Steel Sheet and Coil
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Flat-Rolled Steel

  • Coil weight max. 20t, or customizable
  • Minimum order quantity 20 tonnes

Batch-Annealed Cold Rolled Steel Sheet

  • Thickness0.18-2.0mm
  • Width900-1500mm
  • GradeSPCC/DC01/DC03
  • Production Capacity 7 production lines 5,000,000 tonnes/year
  • Surface Roughness Rough/Lustrous

Continuously-Annealed Cold Rolled Steel Sheet

  • Thickness 0.4-2.0mm
  • Width900-1500mm
  • GradeSPCC/DC01
  • Production Capacity6 production lines 3,000,000 tonnes/year
  • Surface Roughness Rough/Lustrous

Worldwide delivery from the Philippines available upon request

Cold rolled steel coils are produced by processing hot rolled steel through a series of cold rolling and annealing stages. Two primary annealing methods are used: continuous annealing and batch annealing. Each method offers unique advantages, allowing us to meet diverse customer requirements with both production capabilities and equipment.

Production Recommendations

In continuous annealing, the steel strip passes through a large vertical furnace, undergoing a series of steps including preheating, heating, soaking, cooling, over-aging, and final cooling. This method ensures a shorter production cycle and uniform product quality, making it ideal for aluminum-killed steel when moderate stamping performance is sufficient. It’s also effective for IF steel, which requires high stamping performance. Continuous annealing supports faster delivery times but often requires larger batch sizes for new product development.

Batch annealing, on the other hand, involves three key stages: degreasing, annealing, and finishing. The steel is slowly heated, held at a consistent temperature for an extended period, and then gradually cooled. This allows for a thorough recrystallization and carbide formation, which enhances its suitability for aluminum-killed steel with moderate stamping requirements. While batch annealing accommodates smaller batch sizes for new products, its delivery cycle tends to be longer compared to continuous annealing.

Both methods provide flexibility in meeting different production and delivery needs, depending on the specific application and customer requirements.

Specifications
Steel Grade Specifications Performance
Thickness (mm) Width (mm) Inside Diameter (mm) Outside Diameter (mm) Weight (MT) Thickness (mm) Yield Strength (MPa) Tensile Strength (MPa) Elongation after Facture (96) R Value N Value
DC01 0.3~2.0 800-1250 508 or 610 - < 25 0.3~0.6 ≤260 300~410 ≥28 ≥1.3 -
≥0.6~0.8 ≤250 300~410 ≥28 ≥1.3 -
≥0.8~1.2 ≤245 300~410 ≥28 ≥1.3 -
≥1.2 ≤240 300~410 ≥28 ≥1.3 -
DC03 0.3~2.0 800-1250 508 or 610 - < 25 0.3~0.8 ≤240 300~410 ≥34 ≥1.4 ≥0.16
≥0.8~1.2 ≤230 300~410 ≥34 ≥1.4 ≥0.16
≥1.2 ≤220 300~410 ≥34 ≥1.4 ≥0.16
SPCC 0.5~2.0 100-1600 508or 610 - < 25 0.3~0.8 ≤270 300~410 ≥36 - -
≥0.8~1.2 ≤260 300~410 ≥37 - -
≥1.2 ≤250 300~410 ≥37 - -
SPCD 0.5~2.0 100-1600 508 or 610 - < 25 0.4~0.8 ≤230 290~400 ≥38 - -
≥0.8~1.2 ≤220 290~400 ≥39 - -
≥1.2 ≤220 290~400 ≥39 - -
Applications

Cold rolled steel products are used by a diverse group of customers, including:

  • Home appliance manufacturers
  • Electronics companies
  • Automotive manufacturers
  • Auto parts suppliers
  • Building material processors
  • Elevator manufacturers
  • Packaging material suppliers
  • Metal product companies
  • Product distributors

Cold rolled steel coils are ideal for stamping and drawing. They feature high ductility (elongation ≥42%, r-value ≥1.8), a tight thickness tolerance of ±0.02 mm, and an adjustable surface roughness (Ra 0.4-1.2 μm).

The automotive-grade cold rolled steel coils are designed to meet mainstream OEM standards. They are characterized by high formability (drawing ratio ≥2.3), excellent weldability (resistance welding spatter rate ≤2%), and strict surface control (≤5 defects per coil).
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