Stainless Steel Coil
Cold-rolled and hot-rolled stainless coil and slit strip from 0.3 mm to 8 mm in 201, 304, 316L, 321, 430 and Duplex 2205 — 2B, BA, No.4 and PVC-coated, slit and cut-to-length in-house from our Mumbai facility.
What is Stainless Steel Coil?
Stainless steel coil is continuously rolled flat product wound into a coil, supplied cold-rolled from 0.3 mm to 6 mm and hot-rolled from 2 mm to 8 mm, in widths from 5 mm slit strip up to 1500 mm, with coil weights from 50 kg to 15 MT and 508 mm or 610 mm inside diameter. Steelco stocks 201, 304, 304L, 316, 316L, 321, 409, 430 and Duplex 2205 coil in 2B, BA, No.4 and mirror finishes, and slits, cuts to length and edge-conditions to order from its Mumbai facility.
All grades we stock in stainless steel coil.
Click any grade for its full chemical composition, mechanical properties, equivalents and typical applications. Every grade ships with EN 10204 3.1 / 3.2 certification from our Mumbai stockyard.
Why Choose Stainless Steel Coil
Continuous feed for automated lines
Coil feeds press lines, roll-formers, tube mills and CNC punch presses without the piece handling that sheet requires — the lowest-cost format for volume production.
Minimal offcut waste
Cut-to-length from coil lets you nest to your exact blank length, typically cutting scrap by 5–15% against standard sheet sizes.
Slit to any width
Master coil is slit down to 5 mm strip with ±0.05 mm width tolerance and burr-free or rounded edges for spring, gasket and strapping work.
Consistent single-heat lots
One coil is one heat — mechanical properties, gauge and finish stay uniform across the entire production run, which matters for repeat-part tolerance control.
Full finish range
2B, BA, No.4 satin, mirror-polished and PVC-coated coil available directly from stock or processed in-house.
Technical Specifications
| Attribute | Details |
|---|---|
| Standards | ASTM A240 / A480 / A666 · ASME SA240 · EN 10088-2 · JIS G4305 (CR) / G4304 (HR) |
| Product Type | Cold-rolled (CR) and hot-rolled (HR) coil, slit coil and strip |
| Thickness Range | CR 0.3–6.0 mm · HR 2.0–8.0 mm |
| Width Range | Slit strip 5–600 mm · full width 1000, 1219, 1250, 1500 mm |
| Coil Weight | 50 kg to 15 MT — mini-coils and split coils available |
| Coil ID | 508 mm (20") or 610 mm (24") inside diameter |
| Grades Stocked | 201 · 202 · 304 · 304L · 316 · 316L · 321 · 409M · 410 · 430 · Duplex 2205 |
| Finish | 2B, BA, No.4, No.8 mirror, HR No.1; PVC / PE film coated on request |
| Temper | Annealed (soft), 1/4H, 1/2H, 3/4H and full hard (per ASTM A666) |
| Edge | Mill edge, slit edge, deburred or round edge |
| Tolerance | Thickness and width per ASTM A480 / EN 10259; slit width to ±0.05 mm |
Grade availability by finish
| Grade | UNS | 2B | BA | No.4 | No.1 HR | PVC coated |
|---|---|---|---|---|---|---|
| SS 201 / 202 | S20100 / S20200 | — | ||||
| SS 304 / 304L | S30400 / S30403 | |||||
| SS 316 / 316L | S31600 / S31603 | |||||
| SS 321 | S32100 | — | — | |||
| SS 409M / 410 | S40900 / S41000 | — | — | — | ||
| SS 430 | S43000 | |||||
| Duplex 2205 | S32205 | — | — | — |
Note: Hard-temper and precision-gauge strip is rolled to order with a 3–5 MT minimum per size.
Use our free metal weight calculator — bars, sheets, plates, pipes and sections.
Grade chemistry and mechanical properties supplied in stainless steel coil.
Chemical composition and mechanical properties are grade properties, not form properties — the same grade keeps the same chemistry whether it is supplied as sheet, plate or coil. The tables below list the specified limits for each grade we stock in stainless steel coil, tested and certified to ASTM A240 / ASME SA240. Values are weight percent (maximum unless a range is shown); mechanical values are minima in the annealed condition.
Chemical composition (weight %)
| Grade | C | Mn | Si | P | S | Cr | Ni | N | Mo | Ti | Nb+Ta | Cu | Nb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SS 201UNS S20100 | 0.15 | 5.50–7.50 | 1.00 | 0.060 | 0.030 | 16.0–18.0 | 3.5–5.5 | 0.25 | — | — | — | — | — |
| SS 202UNS S20200 | 0.15 | 7.50–10.00 | 1.00 | 0.060 | 0.030 | 17.0–19.0 | 4.0–6.0 | 0.25 | — | — | — | — | — |
| SS 304 / 304LUNS S30400 / S30403 | 0.08 (304) / 0.030 (304L) | 2.00 | 0.75 | 0.045 | 0.030 | 18.0–20.0 | 8.0–10.5 | 0.10 | — | — | — | — | — |
| SS 316 / 316LUNS S31600 / S31603 | 0.08 (316) / 0.030 (316L) | 2.00 | 0.75 | 0.045 | 0.030 | 16.0–18.0 | 10.0–14.0 | 0.10 | 2.00–3.00 | — | — | — | — |
| SS 321 / 321HUNS S32100 / S32109 | 0.08 (321) / 0.04–0.10 (321H) | 2.00 | 0.75 | 0.045 | 0.030 | 17.0–19.0 | 9.0–12.0 | — | — | 5×C–0.70 | — | — | — |
| SS 310 / 310SUNS S31000 / S31008 | 0.25 (310) / 0.08 (310S) | 2.00 | 1.50 | 0.045 | 0.030 | 24.0–26.0 | 19.0–22.0 | — | — | — | — | — | — |
| SS 347 / 347HUNS S34700 / S34709 | 0.08 (347) / 0.04–0.10 (347H) | 2.00 | 0.75 | 0.045 | 0.030 | 17.0–19.0 | 9.0–13.0 | — | — | — | 10×C–1.00 | — | — |
| SS 317LUNS S31703 | 0.030 | 2.00 | 0.75 | 0.045 | 0.030 | 18.0–20.0 | 11.0–15.0 | — | 3.00–4.00 | — | — | — | — |
| SS 904LUNS N08904 | 0.020 | 2.00 | 1.00 | 0.045 | 0.035 | 19.0–23.0 | 23.0–28.0 | — | 4.00–5.00 | — | — | 1.00–2.00 | — |
| 17-4 PHUNS S17400 | 0.07 | 1.00 | 1.00 | 0.040 | 0.030 | 15.0–17.5 | 3.0–5.0 | — | — | — | 0.15–0.45 | 3.0–5.0 | — |
| SS 410 / 410SUNS S41000 / S41008 | 0.15 | 1.00 | 1.00 | 0.040 | 0.030 | 11.5–13.5 | 0.75 | — | — | — | — | — | — |
| SS 430UNS S43000 | 0.12 | 1.00 | 1.00 | 0.040 | 0.030 | 16.0–18.0 | 0.75 | — | — | — | — | — | — |
| SS 409 / 409MUNS S40900 / S40930 | 0.030 | 1.00 | 1.00 | 0.040 | 0.020 | 10.5–11.7 | 0.50 | — | — | 6×C–0.75 | — | — | — |
| SS 441UNS S44100 | 0.030 | 1.00 | 1.00 | 0.040 | 0.030 | 17.5–18.5 | 0.50 | — | — | 0.10–0.60 | — | — | 0.30–0.90 |
Balance iron. Single figures are maximum limits. Mill test certificates to EN 10204 3.1 are issued with every dispatch.
Mechanical properties (annealed, minimum)
| Grade | Tensile Strength (min) | Yield Strength (0.2%) | Elongation in 50 mm | Hardness (Rockwell B) | Tensile Strength (H900) | Yield Strength (H900) | Hardness (Rockwell C) | Tensile Strength (annealed) | Hardness (Rockwell B, annealed) |
|---|---|---|---|---|---|---|---|---|---|
| SS 201 | 515 MPa (75 ksi) | 275 MPa (40 ksi) | 40% min | 95 max | — | — | — | — | — |
| SS 202 | 515 MPa (75 ksi) | 275 MPa (40 ksi) | 40% min | 95 max | — | — | — | — | — |
| SS 304 / 304L | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 40% min | 92 max | — | — | — | — | — |
| SS 316 / 316L | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 40% min | 95 max | — | — | — | — | — |
| SS 321 / 321H | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 40% min | 95 max | — | — | — | — | — |
| SS 310 / 310S | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 40% min | 95 max | — | — | — | — | — |
| SS 347 / 347H | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 40% min | 92 max | — | — | — | — | — |
| SS 317L | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 40% min | 95 max | — | — | — | — | — |
| SS 904L | 490 MPa (71 ksi) | 215 MPa (31 ksi) | 35% min | 90 max | — | — | — | — | — |
| 17-4 PH | — | — | 10% min | — | 1310 MPa (190 ksi) | 1170 MPa (170 ksi) | 40–48 | — | — |
| SS 410 / 410S | — | 275 MPa (40 ksi) | 20% min | — | — | — | — | 480 MPa (70 ksi) | 96 max |
| SS 430 | 450 MPa (65 ksi) | 205 MPa (30 ksi) | 22% min | 89 max | — | — | — | — | — |
| SS 409 / 409M | 380 MPa (55 ksi) | 205 MPa (30 ksi) | 20% min | 88 max | — | — | — | — | — |
| SS 441 | 415 MPa (60 ksi) | 205 MPa (30 ksi) | 18% min | 89 max | — | — | — | — | — |
Typical annealed values; actual results are stated on the heat-specific mill test certificate.
Application Sectors
Press & Stamping Shops
Progressive-die feed stock for appliance, automotive and hardware components — 304 and 430 in annealed temper.
Tube & Pipe Mills
Strip slit to calculated mill width for ERW welded tube production in 304 / 316L.
Roll Forming
Profiles, channels, trims and cable trays roll-formed continuously from 1.0–3.0 mm coil.
Kitchen Equipment
Sinks, worktops and hoods deep-drawn from 304 coil in 2B and No.4 finishes.
Automotive & Exhaust
409M and 439 ferritic coil for exhaust systems, clamps and heat shields.
Appliance Manufacturing
Washing-machine drums, refrigerator panels and cook-tops from BA and No.4 coil.
Springs & Fasteners
Hard-temper 301 / 304 strip for clips, washers and spring components.
Architecture
Wall cladding cassettes and roofing profiles formed from coil, PVC-coated for site protection.
Cut, finished and certified to your drawing.
Material leaves our Mumbai facility finished to your specification — not as raw stock.
Why buy from Steelco.
Steelco Metal & Alloys is a Mumbai-based stockist, importer and exporter of stainless steel and nickel alloys, shipping certified material worldwide.
Quality & testing on every dispatch
- EN 10204 3.1 mill test certificate on every dispatch
- 3.2 certification with TÜV / SGS / BV / Lloyd's / IRS / IBR witness on request
- Positive Material Identification (PMI) with portable XRF / OES
- Dye-penetrant (DPT), ultrasonic (UT) and hydro testing on request
- NACE MR0175 / ISO 15156 compliance for sour service
- PED 2014/68/EU compliance for pressure equipment
- Heat-number stencilling and marking for full traceability
Deep ready stock
Around 900 MT of stainless coil held in Mumbai across 201, 304, 304L, 316, 316L, 321, 430 and Duplex 2205 in CR and HR gauges, with in-house slitting and cut-to-length lines for same-week despatch.
Mill-direct sourcing
Approved supply from Jindal, JSL, Outokumpu, Aperam, Acerinox, Sandvik and leading Japanese and Korean mills — every item traceable to a named producer.
Full certification
EN 10204 3.1 mill test certificate as standard, 3.2 with TÜV, SGS, BV, Lloyd's, IRS or IBR witness, plus PMI, DPT and UT reports on request.
On-time worldwide delivery
Regular export shipments to the GCC, Africa, Southeast Asia, Europe, Latin America and the USA via Nhava Sheva (JNPT), Mundra and Mumbai ports.
How your material is packed and shipped.
Every consignment leaves our Mumbai facility protected for transit and documented for customs, whether it moves by road within India or by sea to an overseas port.
Domestic & export packing
- Coils eye-to-sky or eye-to-wall on wooden pallets, fully strapped
- Water-resistant kraft and VCI paper wrapping over the full coil
- Steel or plastic outer bands with edge protectors
- Wooden cradles for slit coil bundles to prevent telescoping
Global shipments
- HS Code: 7219 (width ≥ 600 mm) · 7220 (width < 600 mm)
- FOB / CFR / CIF terms via Nhava Sheva (JNPT), Mundra and Mumbai ports
- Documentation: commercial invoice, packing list, MTC, bill of lading, COO, insurance
- Regular exports to the GCC, Africa, Southeast Asia, Europe, Latin America and the USA
Ready to price your requirement?
Share grade, size and quantity — our Mumbai desk responds with pricing, stock position and lead time, usually the same working day.
Frequently asked questions.
Answers to the questions our Mumbai desk is asked most often.
What is the difference between stainless steel coil and sheet?
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They are the same material in different formats. Coil is continuously wound strip supplied by weight, ideal for automated feeding, roll forming and cut-to-length operations; sheet is flat cut lengths supplied by piece. Buying coil normally lowers cost per kilogram and reduces offcut waste on volume production.
What coil weights and inside diameters do you supply?
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Standard coils are supplied with a 508 mm (20 inch) or 610 mm (24 inch) inside diameter, in weights from 50 kg mini-coils up to 15 MT master coils. We re-coil and split heavy coils to suit your decoiler capacity.
Can you slit coil to a specific width?
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Yes. Our Mumbai slitting line handles widths from 5 mm strip up to 600 mm with a width tolerance of ±0.05 mm, and edges can be supplied slit, deburred or fully rounded depending on the downstream forming or spring application.
Which temper should we order for deep drawing versus springs?
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For deep drawing, order annealed (soft) temper in 304 or 304L, which offers the highest elongation. For clips, washers and spring components, specify 1/2 hard, 3/4 hard or full hard 301 / 304 strip per ASTM A666, where higher tensile strength and springback are needed.
Do you supply PVC-coated coil?
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Yes. PVC or PE protective film is laminated in-house on 2B, BA and No.4 coil to prevent scratching during forming, transport and site installation. The film peels cleanly and is UV-stabilised for up to six months of outdoor exposure.
What is the minimum order quantity for coil?
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Stocked grades and gauges can be supplied from a single mini-coil or a slit bundle. For non-stock widths, tempers or precision gauges rolled to order, a mill minimum of 3–5 MT per size applies with a 4–8 week lead time.