Stainless steel, carbon steel and spring steel coils and strips, with duplex, nickel alloys, titanium, copper, brass and aluminium — and the grades, tempers, coil weights, edges and tolerances you need to specify them.
We supply hot rolled coils, cold rolled coils, slit coils and strips, and precision strip in stainless steel, carbon steel and spring steel — and in duplex, high nickel alloys, titanium, copper, brass and aluminium when the application calls for them.
Coils are supplied at full mill width, slit to the widths your press or tube mill needs, or cut to length. Every coil carries its heat or coil number and is supplied with a mill test certificate to EN 10204 Type 3.1 or 3.2. When your project needs independent verification, inspection by your nominated agency is carried out before dispatch.
Thickness and width describe the strip. Inside diameter, outside diameter and weight describe how it is wound, and decide whether the coil fits your uncoiler.
Coil, strip or foil? A coil is flat-rolled metal wound into a roll. For stainless steel, ASTM A480 calls material under 5 mm thick and under 600 mm wide strip. Very thin strip, usually under about 0.2 mm, is called foil.
How the coil is rolled and cut decides its thickness range, surface and tolerance, and so what it is used for.
Rolled from slab at high temperature and wound hot. The heavier gauges, with a scaled or pickled surface.
Hot rolled coil rolled again at room temperature, for thinner gauges, a smooth surface and close tolerance.
A wide coil cut lengthwise into narrow coils, to the exact widths your press, roll former or tube mill takes.
Thin cold rolled strip held to tight thickness tolerance, often in a hard temper for springs and stampings.
A coil can be supplied at any point along this route: at full mill width, slit into narrow coils, or cut into sheets and blanks.
Full-width hot or cold rolled coil, as it leaves the rolling mill.
Rotary knives cut the coil lengthwise into narrow coils, each wound to the width you need.
The strip is levelled flat and sheared into sheets or blanks of a fixed length.
Strapped, wrapped against moisture and packed eye-to-sky or eye-to-wall on pallets or skids.
Choose a material family to see the grades we supply, their international designations, and the specifications that cover coil and strip.
The 300 series covers most process and food-grade work. The 200 series is the economical choice for kitchenware and tubing, 301 is rolled hard for springs, and the ferritic 400 series serves exhausts and appliances.
| Grade | UNS | EN / W.Nr. | Where it is used |
|---|---|---|---|
| 201 | S20100 | 1.4372 | Manganese-bearing, low-nickel grade — kitchenware, utensils and decorative tube. |
| 202 | S20200 | 1.4373 | Similar to 201 with more manganese — hardware and decorative work. |
| 301 | S30100 | 1.4310 | Work-hardens strongly — springs, clips and structural parts in hard tempers. |
| 304 / 304L | S30400 / S30403 | 1.4301 / 1.4307 | The general-purpose grade — sinks, food equipment, tube making and pressings. |
| 316 / 316L | S31600 / S31603 | 1.4401 / 1.4404 | Chloride and chemical service; pharmaceutical and coastal applications. |
| 321 | S32100 | 1.4541 | Titanium-stabilised — expansion bellows and exhaust components. |
| 309S / 310S | S30908 / S31008 | 1.4833 / 1.4845 | Heat-resisting grades — furnace parts and heat shields. |
| 409 | S40910 | 1.4512 | Titanium-stabilised ferritic — automotive exhaust systems. |
| 430 | S43000 | 1.4016 | Ferritic and magnetic — appliances, trim and interior panels. |
| 441 | S43940 | 1.4509 | Dual-stabilised ferritic — hot end of exhausts and heat-exchanger parts. |
| 410 | S41000 | 1.4006 | Martensitic and hardenable — blades and wear parts. |
Twice the yield strength of 316L with far better resistance to chloride stress-corrosion cracking. Duplex coil is the feedstock for welded duplex tube and thin-walled tanks.
| Grade | UNS | EN / W.Nr. | Where it is used |
|---|---|---|---|
| Lean Duplex 2101 | S32101 | 1.4162 | Tanks and structures where higher strength than 304 saves weight. |
| Lean Duplex 2304 | S32304 | 1.4362 | Molybdenum-free duplex with corrosion resistance close to 316L. |
| Duplex 2205 | S31803 / S32205 | 1.4462 | Welded tube, chemical tankers and desalination equipment. |
| Super Duplex 2507 | S32750 | 1.4410 | Seawater systems and high-chloride process plant. |
Hot rolled coil is chosen for strength and economy; cold rolled coil for surface, flatness and formability. Drawing grades are graded by how deep a part they can form.
| Specification & grade | Product | Where it is used |
|---|---|---|
| IS 2062 E250 / E350 | Hot rolled coil | Structural sections, tube and pipe making, general fabrication. |
| ASTM A1011 CS / SS | Hot rolled coil | Commercial and structural hot rolled sheet and strip. |
| EN 10111 DD11 – DD14 | Hot rolled coil | Low-carbon steel for cold forming, from simple bends to deep drawing. |
| IS 513 | Cold rolled coil | Cold rolled sheet and strip in commercial, drawing and deep-drawing qualities. |
| ASTM A1008 CS / DS | Cold rolled coil | Commercial and drawing steel for pressed parts and panels. |
| EN 10130 DC01 – DC04 | Cold rolled coil | Cold forming steel, from DC01 for bending to DC04 for deep drawing. |
| SAE 1008 / 1010 | Cold rolled strip | Low-carbon strip for stampings, tubing and general engineering. |
High-carbon and alloy strip is hardened and tempered, or supplied annealed for the customer to form and heat-treat. It is the material of flat springs, blades and washers.
| Grade | Equivalent | Type | Where it is used |
|---|---|---|---|
| C75S | SAE 1075 · 1.1248 | Carbon spring steel | Flat springs, clips, washers and saw blades. |
| C100S | SAE 1095 · 1.1274 | High-carbon spring steel | Knife blades, cutting tools and highly stressed springs. |
| 51CrV4 | SAE 6150 · 1.8159 | Chromium-vanadium spring steel | Heavy-duty springs and parts under fatigue loading. |
| AISI 4130 | AMS 6350 · 1.7218 | Chromium-molybdenum alloy | High-strength formed and welded parts. |
Inconel, Incoloy, Monel and Hastelloy strip is used for bellows, gaskets, heat shields and thin-walled components where stainless steel is not enough. The ASTM specifications cover plate, sheet and strip together.
| Alloy | UNS | W.Nr. | Sheet & strip | Where it is used |
|---|---|---|---|---|
| Nickel 200 / 201 | N02200 / N02201 | 2.4066 / 2.4068 | B162 | Battery, electronic and caustic-service components. |
| Monel 400 | N04400 | 2.4360 | B127 | Seawater and hydrofluoric acid service. |
| Inconel 600 | N06600 | 2.4816 | B168 | Heat-treatment fixtures and furnace parts. |
| Inconel 625 | N06625 | 2.4856 | B443 | Bellows, expansion joints and flue-gas components. |
| Incoloy 800 / 800H / 800HT | N08800 / N08810 / N08811 | 1.4876 / 1.4958 / 1.4959 | B409 | Heat-exchanger and furnace components. |
| Incoloy 825 | N08825 | 2.4858 | B424 | Acid-resistant liners and components. |
| Hastelloy C276 | N10276 | 2.4819 | B575 | Chemical-process and scrubber components. |
| Alloy 20 | N08020 | 2.4660 | B463 | Sulphuric acid handling. |
Commercially pure titanium strip is the material of plate heat exchangers and welded condenser tube. Grade 5 is the high-strength alloy.
| Grade | UNS | Type | Where it is used |
|---|---|---|---|
| Grade 1 | R50250 | Commercially pure | The most formable grade — heat-exchanger plates. |
| Grade 2 | R50400 | Commercially pure | General corrosion service and welded tube. |
| Grade 5 | R56400 | Ti – 6Al – 4V | High-strength aerospace and engineered parts. |
| Grade 7 | R52400 | Ti – 0.15Pd | Palladium-bearing, for reducing acids. |
Copper strip carries current and heat; brass and bronze strip is stamped into terminals, connectors and springs.
| Alloy | UNS | Specification | Where it is used |
|---|---|---|---|
| ETP Copper | C11000 | B152 | Busbars, transformer windings and earthing strip. |
| Oxygen-Free Copper | C10200 | B152 | Electronic and vacuum components. |
| Cartridge Brass 70/30 | C26000 | B36 | Deep-drawn and stamped parts. |
| Phosphor Bronze | C51000 | B103 | Electrical contacts, connectors and springs. |
| Copper-Nickel 90/10 | C70600 | B122 | Seawater-resistant strip and welded tube. |
| Beryllium Copper | C17200 | B194 | High-strength springs and non-sparking parts. |
Light and naturally corrosion resistant. Pure and 3000-series coil is used for insulation cladding and roofing; 5000 and 6000 series for transport and structural parts.
| Alloy | UNS | Common temper | Where it is used |
|---|---|---|---|
| 1100 | A91100 | O / H14 | Commercially pure — insulation jacketing and chemical equipment. |
| 3003 | A93003 | H14 | Roofing, cladding, ducting and general sheet-metal work. |
| 5052 | A95052 | H32 | Transport panels, marine parts and fuel tanks. |
| 5083 | A95083 | O / H111 | Marine and cryogenic applications. |
| 6061 | A96061 | T6 | Structural and machined parts. |
| 8011 | A98011 | O / H14 | Foil stock — packaging, closures and fin stock. |
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These are the grades asked for most, not the limit of what we supply. For designations of every family in other product forms, see Materials & Grades.
Composition limits in percent by weight. A single figure is a maximum; a range shows minimum and maximum. Duplex and pressure-vessel grades are listed on the Sheets & Plates page.
| Grade | C | Mn | P | S | Si | Cr | Ni | Mo | N | Others |
|---|---|---|---|---|---|---|---|---|---|---|
| Austenitic, 200 series | ||||||||||
| 201 | 0.15 | 5.5 – 7.5 | 0.060 | 0.030 | 1.00 | 16.0 – 18.0 | 3.5 – 5.5 | – | 0.25 | – |
| 202 | 0.15 | 7.5 – 10.0 | 0.060 | 0.030 | 1.00 | 17.0 – 19.0 | 4.0 – 6.0 | – | 0.25 | – |
| Austenitic, 300 series | ||||||||||
| 301 | 0.15 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0 – 18.0 | 6.0 – 8.0 | – | 0.10 | – |
| 304 | 0.07 | 2.00 | 0.045 | 0.030 | 0.75 | 17.5 – 19.5 | 8.0 – 10.5 | – | 0.10 | – |
| 304L | 0.030 | 2.00 | 0.045 | 0.030 | 0.75 | 17.5 – 19.5 | 8.0 – 12.0 | – | 0.10 | – |
| 316 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 3.00 | 0.10 | – |
| 316L | 0.030 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 3.00 | 0.10 | – |
| 321 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 17.0 – 19.0 | 9.0 – 12.0 | – | 0.10 | Ti 5×(C+N) – 0.70 |
| Ferritic & martensitic | ||||||||||
| 409 (S40910) | 0.030 | 1.00 | 0.040 | 0.020 | 1.00 | 10.5 – 11.7 | 0.50 | – | 0.030 | Ti 6×(C+N) – 0.50 |
| 430 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 16.0 – 18.0 | 0.75 | – | – | – |
| 410 | 0.08 – 0.15 | 1.00 | 0.040 | 0.030 | 1.00 | 11.5 – 13.5 | 0.75 | – | – | – |
| Grade | C | Mn | P | S | Si | Cr | Others |
|---|---|---|---|---|---|---|---|
| Low-carbon coil & strip | |||||||
| A1008 CS Type B | 0.02 – 0.15 | 0.60 | 0.030 | 0.035 | – | – | – |
| A1011 CS Type B | 0.02 – 0.15 | 0.60 | 0.030 | 0.035 | – | – | – |
| SAE 1008 | 0.10 | 0.30 – 0.50 | 0.030 | 0.050 | – | – | – |
| SAE 1010 | 0.08 – 0.13 | 0.30 – 0.60 | 0.030 | 0.050 | – | – | – |
| Spring steel strip · EN 10132-4 | |||||||
| C75S | 0.70 – 0.80 | 0.60 – 0.90 | 0.025 | 0.025 | 0.15 – 0.35 | 0.40 | – |
| 51CrV4 | 0.47 – 0.55 | 0.70 – 1.10 | 0.025 | 0.025 | 0.40 | 0.90 – 1.20 | V 0.10 – 0.25 |
Swipe the tables sideways to see every element
Values are shown for reference and follow the specifications named in each table. Limits are revised from time to time, so the edition of the specification on your order, and the mill test certificate supplied with the material, always govern.
Strip is rolled to a temper: annealed and soft for deep drawing, or cold rolled hard for springs and stiff parts. Specify the temper along with the grade.
MPa · minimum required, ASTM A240 (annealed) and A666
Full hard 301 is about two and a half times as strong as annealed 301. Ductility falls as strength rises, so hard tempers are for flat or lightly formed parts.
kg · equal to the density in g/cm³
For the same thickness and area, titanium strip weighs a little over half as much as stainless steel, and aluminium about a third.
| Temper | Tensile strength, min MPa (ksi) | Yield strength, min MPa (ksi) | Typical use |
|---|---|---|---|
| Annealed | 515 (75) | 205 (30) | Deep drawing and severe forming |
| 1/16 hard | 620 (90) | 310 (45) | Formed parts that need a little more stiffness |
| 1/8 hard | 690 (100) | 380 (55) | Stretch-formed and roll-formed sections |
| 1/4 hard | 860 (125) | 515 (75) | Structural members and panels, with moderate bending |
| 1/2 hard | 1035 (150) | 760 (110) | Clips, retainers and springs |
| 3/4 hard | 1205 (175) | 930 (135) | Flat springs |
| Full hard | 1275 (185) | 965 (140) | High-strength springs and flat parts with no forming |
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Minimum elongation falls with each step of temper and also depends on the strip thickness; the value for your size is reported on the mill test certificate. Other austenitic grades, including 201 and 304, are also supplied in cold-worked tempers.
| Temper | Rockwell hardness HRB | Forming it allows |
|---|---|---|
| No. 1 · Hard | 90 min | Flat blanking and shearing only; not intended for bending |
| No. 2 · Half hard | 70 – 85 | Limited bending, across the rolling direction |
| No. 3 · Quarter hard | 60 – 75 | Moderate bending and simple forming |
| No. 4 · Skin rolled | 65 max | Bending flat on itself and fairly deep forming |
| No. 5 · Dead soft | 55 max | Deep drawing and the most severe forming |
Annealed mechanical properties of the other stainless, duplex and carbon grades are listed on the Sheets & Plates page, as the same specifications cover coil, sheet and plate.
Find the coil's outside and inside diameter, then multiply the value by the width in mm to get the coil weight. Click any value to load it into the calculator.
| Coil ODmm | ID 300mm | ID 400mm | ID 50820 inch | ID 61024 inch |
|---|---|---|---|---|
| 600 | 1.68 | 1.25 | 0.63 | – |
| 700 | 2.49 | 2.06 | 1.44 | 0.73 |
| 800 | 3.43 | 2.99 | 2.38 | 1.67 |
| 900 | 4.48 | 4.05 | 3.44 | 2.73 |
| 1000 | 5.67 | 5.23 | 4.62 | 3.91 |
| 1100 | 6.98 | 6.54 | 5.93 | 5.22 |
| 1200 | 8.41 | 7.97 | 7.36 | 6.65 |
| 1300 | 9.97 | 9.53 | 8.92 | 8.21 |
| 1400 | 11.65 | 11.21 | 10.60 | 9.89 |
| 1500 | 13.45 | 13.02 | 12.41 | 11.70 |
| 1600 | 15.38 | 14.95 | 14.34 | 13.63 |
| 1700 | 17.44 | 17.00 | 16.39 | 15.68 |
| 1800 | 19.62 | 19.18 | 18.57 | 17.86 |
| 2000 | 24.35 | 23.92 | 23.31 | 22.60 |
Example: a stainless 304 coil with an OD of 1200 mm on a 508 mm ID weighs 7.36 kg per mm of width, so a 1250 mm wide coil weighs about 7.36 × 1250 = 9,200 kg. The same figure per mm of width tells you the weight of each slit coil cut from it.
Enter the strip size and coil diameters, or click a value in the chart above.
kg = π ÷ 4 × (OD² − ID²) × width × density ÷ 1,000,000
length = π × (OD² − ID²) ÷ (4 × thickness)
Weights and lengths are theoretical, for a tightly wound coil at nominal dimensions. Actual values vary with winding tension and the tolerances of the specification.
For strip that runs through a press or a tube mill, the edge and the shape of the strip matter as much as its thickness. Say which edge you need, and any limits on shape.
The natural, slightly rounded edge left by rolling. Width varies a little along the coil.
A square edge cut by slitting knives, to an exact width. It can carry a small burr on one side.
A slit edge with the burr removed and the corners dressed, for strip that is handled or must not cut.
Sideways curve of the edge, seen from above. Matters for slit strip fed into a tube mill or press.
Curvature along the length, left by winding. Levelling removes it when strip is cut to length.
Curvature across the width, seen from the end of the strip.
Waviness along the edges while the centre stays flat. Checked by laying the strip on a flat table.
Coil and strip tolerances are set by a general-requirements standard for each material. Most offer a normal class and a closer class; name the class on your order if you need the closer one.
| Product | Tolerance standard | What it controls |
|---|---|---|
| Stainless coil & strip, ASTM | ASTM A480 | Thickness, width, length, camber and flatness for stainless sheet, strip and plate. |
| Stainless narrow strip, EN | EN ISO 9445-1 | Thickness, width, camber and flatness of cold rolled strip under 600 mm wide, in normal and closer classes. |
| Stainless wide coil, EN | EN ISO 9445-2 | Thickness, width, length and flatness of cold rolled wide strip and cut sheet. |
| Carbon steel hot rolled coil | EN 10051 · ASTM A568 | Thickness, width, camber and flatness of hot rolled strip and sheet. |
| Carbon steel cold rolled coil | EN 10131 · ASTM A568 · IS 513 | Thickness, width, flatness and camber of cold rolled sheet and wide strip. |
| Cold rolled narrow strip, carbon & spring steel | EN 10140 | Close thickness and width tolerances for precision strip. |
| Copper & copper alloy strip | ASTM B248 · EN 1652 | Thickness, width, straightness and flatness of copper and brass strip. |
| Aluminium coil & strip | ASTM B209 · EN 485-4 | Thickness, width and flatness of rolled aluminium. |
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Thickness tolerances for cold rolled stainless sheet are tabulated on the Sheets & Plates page. For slit strip, state the width tolerance and any camber limit on your enquiry; closer limits than the standard can be agreed.
A starting point for matching the coil to the part it will become. Tell us what you are making, and we will quote the grades and tempers that fit.
| Application | Typical choice | Why |
|---|---|---|
| Kitchenware, utensils & decorative tube | SS 201 · 202 · 304 | 200 series for economy; 304 where corrosion resistance matters more. |
| Sinks & deep-drawn parts | SS 304 annealed · 430 | Soft, ductile temper that draws without cracking. |
| Food, dairy & pharmaceutical equipment | SS 304L · 316L | Low carbon keeps corrosion resistance after welding. |
| Springs, clips & washers | SS 301 1/2 – full hard · C75S · 51CrV4 | High strength from cold work or heat treatment. |
| Automotive exhausts | SS 409 · 441 · 304 | Ferritic grades resist hot exhaust gas at lower cost. |
| Appliances & interior trim | SS 430 BA · 304 No. 4 | Bright or brushed finish with good formability. |
| Welded tube & pipe making | SS 304 · 316L · 2205 · IS 2062 | Slit coil fed straight into the tube mill. |
| Bellows & expansion joints | SS 321 · Inconel 625 · Incoloy 825 | Thin strip that resists fatigue and corrosion at temperature. |
| Plate heat exchangers & gaskets | SS 316L · Titanium Gr. 1 · Ni alloys | Thin, formable strip matched to the process fluid. |
| Busbars, earthing & electrical parts | ETP Copper C11000 | The highest electrical conductivity of common metals. |
| Connectors & contact springs | Phosphor bronze C51000 · Beryllium copper | Spring properties combined with good conductivity. |
| Insulation cladding & roofing | Aluminium 1100 · 3003 | Light, easily formed and weather resistant. |
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This guide is for orientation only. Final material selection depends on the full service conditions and the governing design code, and remains the responsibility of the design engineer.
Every coil is traceable to its heat or coil number and leaves with its mill test certificate. These tests are arranged when your order calls for them.
A coil is flat-rolled metal wound into a roll, in any width. Strip is the narrow product: for stainless steel, ASTM A480 calls material under 5 mm thick and under 600 mm wide strip. Strip is usually made by slitting a wide coil, and it is supplied either in coil or in cut lengths.
The coil is a ring of metal, so its weight is the ring area times the width times the density: kg = π ÷ 4 × (OD² − ID²) × width × density ÷ 1,000,000, with dimensions in mm and density in g/cm³. A 1250 mm wide coil of stainless steel 304 with a 508 mm inside diameter and a 1200 mm outside diameter weighs about 9,200 kg. The coil calculator does this for you.
It is the temper: how much the strip has been cold rolled after annealing. Cold rolling raises strength and hardness and lowers ductility. For austenitic stainless steel, ASTM A666 sets minimum strengths for each temper from 1/16 hard to full hard. For carbon steel strip, ASTM A109 defines tempers No. 1 (hard) to No. 5 (dead soft) by hardness. See the temper tables.
Ask for the inside diameter that fits the mandrel of your uncoiler or press feed. 508 mm (20 inch) and 610 mm (24 inch) are the most common for wide and slit coils. Narrow precision strip is often wound on a smaller inside diameter, such as 300 or 400 mm. State the maximum outside diameter or coil weight your line can take as well.
A mill edge is the natural, slightly rounded edge left by rolling. A slit edge is the square edge produced when a wide coil is cut into narrow strips; it can carry a small burr. Where the edge will be handled or must not cut, ask for a deburred or conditioned edge.
Every coil is supplied with a mill test certificate to EN 10204 Type 3.1 or 3.2, traceable to the heat or coil number marked on the material, along with any additional test reports ordered. When third-party inspection is called for, the agency's inspection release note is included. More on our quality & inspection page.
Sheets, plates, pipes and bars in the same grades, so everything for the job comes from one supplier with one set of documents.
Send the grade, thickness, width, temper and quantity. We will confirm availability and quote, with the mill test certificate and inspection you need.
