Stainless steel coil and strip grades
Stainless steel coil and strip from Nandini Steel is stocked across the same five core grades as our sheet and plate range, ready for slitting and ex-stock dispatch out of Mumbai. SS 304 coil and 304L coil are the workhorse grades for general fabrication and appliance manufacturing. 316 coil and 316L coil carry the molybdenum content that chemical, marine and pharma customers need for genuine pitting resistance. 904L coil is our super-austenitic grade, part of the specialty scope on our ISO 9001:2015 certification, for sulfuric-acid and severe chloride environments. Every coil, whether supplied full-width or slit to strip, ships with an EN 10204 3.1 or 3.2 mill test certificate traceable to heat number.
304 stainless steel coil suits dry and indoor fabrication where corrosion exposure is low, and 304L is the weldable low-carbon version for assemblies that will be joined without post-weld annealing. 316 and 316L coil step up to roughly 2 to 3 percent molybdenum, which is what actually stops a coil pitting once it is formed into equipment near chlorides or salt air. 904L coil, with its higher nickel, molybdenum and copper content, is reserved for the toughest acid and chloride duty that a standard 316L strip cannot hold.
SS coil widths, slitting and tolerances
Stainless steel coil is stocked in full mill widths and slit down to narrower strip to match your line width, with tight width tolerance held through the slitting process.
| Form | Width range | Typical tolerance |
|---|---|---|
| Full mill coil | 1000 mm to 1500 mm | plus/minus 5 mm on width |
| Slit coil / strip | 10 mm to 600 mm | plus/minus 0.1 mm to 0.3 mm depending on width |
| Narrow precision strip | below 50 mm | plus/minus 0.05 mm on request |
Thickness across coil and strip typically runs from 0.3 mm to 3 mm, matching our sheet range, with heavier gauge available on specific grades against a confirmed order.
Coil ID, weights and packing
Stainless steel coil is supplied on standard inner diameters, most commonly 508 mm (20 inch) and 610 mm (24 inch), chosen to suit your decoiling line. Coil weights vary with width and thickness, typically ranging from a few hundred kilograms for narrow slit strip up to several tonnes for full-width mill coil. Each coil is packed with edge protection, moisture-resistant wrapping and steel strapping suited for export, with weight and dimensions marked on the packing list and mill test certificate so receiving checks match the shipment without delay.
2B coil vs No.1 coil finishes
2B is the standard cold-rolled finish for stainless steel coil, a smooth, dull-bright surface used across general fabrication, appliance manufacturing and most slit strip applications. No.1 is a hot-rolled, annealed and pickled finish with a duller, slightly textured surface, typically found on heavier gauge coil feeding structural or process equipment fabrication rather than precision forming. Most of the coil and strip we slit and dispatch is 2B finish, since it suits both forming and further polishing, while No.1 coil is sourced for specific heavier-gauge requirements.
Standards: ASTM A240 / A480
Stainless steel coil and strip from Nandini Steel conforms to ASTM A240 and its equivalent ASME SA-240, which set the chemical composition and mechanical property requirements for chromium and chromium-nickel coil, sheet and strip. ASTM A480 covers the general requirements shared across these flat products, including dimensional tolerance and finish definitions that apply directly to slit coil and strip width tolerance. We issue EN 10204 3.1 and 3.2 mill test certificates on every coil and slit strip order, with full heat traceability through the slitting process.
SS coil price and RFQ
Stainless steel coil price is quoted only against an RFQ, not from a published rate card, because the final number depends on the grade base price, a nickel and molybdenum alloy surcharge that tracks the metals market, slitting and width extras, and your order quantity. Narrower slit widths and tighter tolerance typically add a processing charge over full-width coil. Send your grade, thickness, width, coil ID preference and quantity and we will return a firm, same-day quote.
Stainless steel coil
