Stainless steel coil products.
Coil is stainless steel strip produced by continuous rolling and winding. Cold rolled coil is made in thin gauges with a smooth surface; hot rolled coil in heavier gauges. Because it can be processed continuously on a line, coil is the raw material for flat sheet, strip, tube and profile products.
Coil is typically slit into narrow strips or cut to length into sheets. 304 and 430 are common in kitchen and appliance manufacturing, 316 in more aggressive environments, and 409 in automotive exhaust systems. This is general reference information; which grades are actually supplied is confirmed in the quotation.
Thickness, size and tolerance values vary by product form; exact values are confirmed during the quotation.
A selection guide based on general industry knowledge. Which grades are supplied is confirmed in the quotation.
General-purpose choice: kitchen and food equipment, cladding, appliances. Good formability and weldability.
More aggressive environments with chlorides, marine atmosphere or chemical exposure. Contains molybdenum.
Nickel-free ferritic grade: interior cladding and appliance panels. Magnetic; lower corrosion resistance than 304.
Low-chromium ferritic grade: heat applications not requiring high corrosion resistance such as automotive exhaust systems. Not intended for decorative use.
Service centre lines that process this product.
2B is a smooth, semi-bright general-purpose finish: cold rolled, annealed, pickled and lightly skin-passed. BA (bright annealed) is annealed in a protective atmosphere and gives a near-mirror, reflective surface, preferred for decorative and easy-to-clean surfaces.
Coil suits continuous production, strip slitting, or tube and profile making. Sheet is the flat form that can be used directly for individually cut parts. Coil can also be cut to length into sheets on a cut-to-length line.
Both are austenitic grades. 316 contains roughly 2 - 2.5% molybdenum, which raises resistance to chloride and pitting corrosion. In dry, mild environments 304 is often sufficient; in salty, chloride-bearing or chemical environments 316 is preferred.
Stainless flat products are defined by EN 10088-2 in Europe and ASTM A240 and A480 in the USA. Dimensional tolerances for cold and hot rolled strip are given in EN ISO 9445.
