Cold Rolled Steel Coils for Steel Structure Buildings
Cold rolled steel coils play a vital role in modern steel structure buildings, offering superior surface quality, dimensional precision, and strength-to-weight ratio. These coils are essential in fabricating components such as purlins, light gauge framing, facade systems, and internal partition supports.
Cold rolling enhances both the mechanical and aesthetic properties of steel, making it ideal for precision applications in structural and architectural construction.
What Are Cold Rolled Steel Coils?
Cold rolled steel is produced by rolling hot rolled steel at room temperature. This process:
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Reduces the steel’s thickness more precisely
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Improves mechanical properties through work hardening
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Provides a smooth, uniform surface finish
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Delivers tight dimensional tolerances
Cold rolled coils are typically between 0.3 mm and 3.0 mm thick and are delivered in widths up to 1,250 mm. They are supplied in full coils or slit into narrower strips for fabrication.
Applications of Cold Rolled Steel Coils for Steel Structure Buildings
Cold rolled coils are used across a wide range of steel building components:
1. Light Gauge Steel Framing
Cold rolled coils are fabricated into C, U, and Z sections used for:
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Non-load-bearing and load-bearing walls
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Roof and floor joists
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Partition studs and track systems
These components are essential in light steel frame buildings, especially in residential, industrial, and commercial construction.
2. Steel Purlins and Girts
Cold formed purlins and girts made from cold rolled coils provide horizontal support for wall and roof panels in pre-engineered steel buildings (PEBs).
3. Roofing and Wall Panels
Corrugated or profiled sheets formed from cold rolled steel provide cladding, insulation support, and structural rigidity. Cold rolling ensures high-quality finish for visible surfaces.
4. Ceiling Systems
Cold rolled steel is commonly used in the manufacture of steel ceiling grids, T-bars, and framing for suspended ceilings.
5. Door and Window Frames
Due to its precise dimensions and clean edges, cold rolled steel is widely used for pressed steel frames in industrial and institutional buildings.
Advantages of Using Cold Rolled Coils in Structural Buildings
Dimensional Accuracy
Cold rolling ensures tighter tolerances and more uniform profiles than hot rolled products, reducing fabrication error.
Strength and Formability
Cold rolled steel offers higher yield and tensile strength through strain hardening, while maintaining excellent formability for bending and punching.
Smooth Surface Finish
Ideal for visible architectural applications or projects requiring painting or powder coating.
Weight Efficiency
Cold rolled steel components allow for lighter structural systems without compromising load-bearing capacity.
Compatibility with Galvanizing
Cold rolled coils can be galvanized or coated post-production for corrosion resistance, making them ideal for exterior and high-moisture environments.
Typical Grades and Specifications
| Standard | Grade | Description |
|---|---|---|
| ASTM A1008 | CS, DS | Commercial and drawing quality |
| EN 10130 | DC01 – DC05 | Cold rolled low-carbon steel |
| JIS G3141 | SPCC | Common for general fabrication |
| SAE 1008 / 1010 | Low carbon | Excellent for bending/forming |
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Thickness range: 0.4 mm – 3.0 mm
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Width: Up to 1,250 mm
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Surface finish: Dry, oiled, or skin-passed
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Yield strength: 200 – 350 MPa, depending on grade
Fabrication and Processing
Cold rolled coils are processed into structural building components using:
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Roll forming machines (for channels, studs, purlins)
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Press brake or stamping machines (for brackets, fasteners)
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Slitting and leveling equipment (for custom widths)
Cold rolled steel’s consistent thickness and low residual stress improve cutting, welding, and finishing results.
Pricing Overview (July 2025)
| Grade | Thickness (mm) | Price (USD/ton) | Price per m² (1.0 mm) |
|---|---|---|---|
| ASTM A1008 | 1.0 mm | $850 – $1,050 | $6.80 – $8.40 |
| SPCC | 1.2 mm | $820 – $980 | $8.20 – $9.80 |
Prices vary based on coil width, surface treatment, and origin (domestic vs. import). Bulk orders (50 tons or more) usually attract lower pricing per ton.
Recommended Suppliers
United States
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Steel Warehouse
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Majestic Steel USA
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Ryerson
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Alliance Steel
China (for imports)
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Baosteel
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Wanda Steel
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HBIS
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Ansteel
International buyers typically purchase cold rolled coils FOB China, and then import to the U.S. Midwest or elsewhere, subject to logistics and tariff costs.
Considerations for Buyers
Before purchasing cold rolled steel coils for steel structure building applications, consider:
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Required grade and thickness for structural vs. non-structural use
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Surface finish: oiled for corrosion protection or dry for immediate painting
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Coating compatibility: zinc-coating, powder coating, or paint
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Delivery format: full coils, slit coils, or cut-to-length sheets
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Certifications: ISO, EN, ASTM compliance for structural projects
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Lead times and logistics: especially for large construction projects
Conclusion
Cold rolled steel coils are a key material in the fabrication of steel structure buildings. Their superior dimensional control, strength, and surface finish make them ideal for both structural and aesthetic building applications.
Whether you are constructing warehouse framing, metal cladding, or modular units, cold rolled steel ensures long-term durability, efficient fabrication, and reliable quality.
