Home / Material
Material · Cold-rolled steel · Sheet stock

Cold-rolled steel sheet — the structural default.

ASTM A1008 cold-rolled carbon steel — low-carbon (typically 1008 or 1010 grade) sheet stock in 0.5 to 6 mm thicknesses. The workhorse of sheet metal fabrication: brackets, chassis, cabinets, weldments, pre-painted enclosures. Affordable, easy to cut, easy to bend, easy to weld.

QUICK SPECS
StandardASTM A1008 CS Type B (cold-rolled)
Tensile strength290–340 MPa
Yield strength180–240 MPa
Thicknesses stocked0.5, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0 mm
Sheet sizes1,000 × 2,000 mm / 1,250 × 2,500 mm
SurfaceOiled mill finish
STATUSIN OPERATION
§ 01 / COLD-ROLLED

Cold-rolled vs hot-rolled

Cold-rolled steel (CRS) is what you want for most sheet metal work. Hot-rolled (HRS) has a scaly surface, looser tolerances, and is typically used for structural plate over 6 mm thick.

PropertyCold-rolledHot-rolled
Surface finishSmooth, paintableScaly mill finish
Thickness tolerance±0.05 mm±0.3 mm
Dimensional stabilityGoodFair
Cost~15% higherLower
Best forVisible sheet metal parts, precision bracketsThick structural plate (>6 mm)
§ 02 / WHAT

What it needs post-fabrication

Raw CRS rusts quickly — you need post-fabrication protection:

  • Powder coating: most common; full RAL colors; adds 3 days to lead time; $3–10 per sq ft
  • Zinc plating: for fasteners and concealed parts; 5–15 μm; adds 5 days
  • Pre-galvanized (G60/G90): buy pre-coated sheet; saves post-processing; limits thickness options
  • Paint: wet paint for large structural; less durable than powder coat

For indoor dry environments, oil + phosphate is sufficient. For outdoor, galvanize or powder coat. For corrosive environments (marine, chemical), switch to stainless.

READY WHEN YOU ARE

CRS sheet metal parts, ready to powder coat.

Upload DXF or STEP. We quote bare sheet and optional finishing side by side.

Start a quote →