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Stainless Steel Coils
Product Overview
Stainless Steel Coils offered by R V Metal Corporation cover a comprehensive range of austenitic, ferritic, martensitic, and duplex grades including J7, J4, 201, 202, 301, 302, 304, 304L, 304H, 305, 308, 309, 309S, 310, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H, 409L, 410, 410S, 420, 429, 430, 430Ti, 439, 441, 444, and Duplex S31803 (2205). These coils are supplied in hot rolled (HR) and cold rolled (CR) conditions with finishes such as 2B, BA, No.4, and hairline, suitable for diverse industrial, architectural, automotive, marine, and fabrication applications. Economy 200-series grades (J7, J4, 201, 202) provide cost-effective solutions for general fabrication, while 300-series austenitic grades like 304 and 316 deliver excellent corrosion resistance, formability, and weldability for food processing, chemical, and marine environments. Heat-resistant grades such as 309, 310, 321, and 347 perform reliably under elevated temperatures, whereas ferritic and martensitic grades (409L, 410, 420, 430 series) offer oxidation resistance, magnetic properties, and wear strength. Duplex S31803 coils combine high mechanical strength with superior resistance to stress corrosion cracking, making them ideal for aggressive chloride environments. Coils are available in slit, edge-conditioned, and cut-to-length options to meet precise manufacturing and project requirements.
Technical Specifications
| Specification Parameter | Details |
|---|---|
| Product Form | Stainless Steel Coils (Hot Rolled & Cold Rolled) |
| Grades Covered | J7, J4, 201, 202, 301, 302, 304, 304L, 304H, 305, 308, 309, 309S, 310, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H, 409L, 410, 410S, 420, 429, 430, 430Ti, 439, 441, 444, Duplex S31803 (2205) |
| Steel Families | Austenitic (200 & 300 Series), Ferritic (400 Series), Martensitic, Duplex |
| Manufacturing Process | Hot Rolled (HR), Cold Rolled (CR) |
| Thickness Range | 0.1 mm to 12.0 mm (higher thicknesses available on request) |
| Width Range | 600 mm to 2000 mm (custom slit widths available) |
| Coil Weight | 2 MT to 30 MT (depending on grade, width, and thickness) |
| Surface Finishes | 2B, BA, No.1, No.4, Hairline, Matte, Mirror (8K), Customized Finishes |
| Edge Condition | Mill Edge, Slit Edge, Deburred Edge |
| Heat Treatment | Annealed, Solution Annealed, Pickled & Passivated (as applicable) |
| Mechanical Properties | As per applicable grade and standard (ASTM / EN / JIS) |
| Magnetic Properties | Non-magnetic (Austenitic grades), Magnetic (Ferritic & Martensitic grades), Partially magnetic (Duplex) |
| Corrosion Resistance | Good to Excellent depending on grade; enhanced resistance in Mo-bearing grades (316, 317) and Duplex S31803 |
| Weldability | Excellent for Austenitic & Duplex grades; Moderate for Ferritic & Martensitic grades (pre/post heat treatment may be required) |
| Standards | ASTM A240 / A480, EN 10088, JIS G4304 / G4305, IS 6911 |
| Testing & Certification | Mill Test Certificate (EN 10204 3.1), Chemical & Mechanical Testing, PMI, UT (on request) |
| Supply Condition | As Rolled, Annealed & Pickled, Skin Passed (as specified) |
| Applications | Automotive, Architecture, Food Processing, Chemical Plants, Heat Exchangers, Pressure Vessels, Marine, Fabrication & OEM Manufacturing |
Chemical Composition
| Grade / Group | C (%) | Mn (%) | Si (%) | Cr (%) | Ni (%) | Mo (%) | Others |
|---|---|---|---|---|---|---|---|
| J7, J4, 201, 202 | ≤ 0.15 | 5.5 – 10.0 | ≤ 1.00 | 16.0 – 18.0 | 3.5 – 5.5 | – | N ≤ 0.25 |
| 301, 302, 304 | ≤ 0.15 | ≤ 2.00 | ≤ 1.00 | 17.0 – 19.0 | 8.0 – 10.5 | – | — |
| 304L | ≤ 0.03 | ≤ 2.00 | ≤ 1.00 | 18.0 – 20.0 | 8.0 – 12.0 | – | Low Carbon |
| 304H | 0.04 – 0.10 | ≤ 2.00 | ≤ 1.00 | 18.0 – 20.0 | 8.0 – 11.0 | – | High Carbon |
| 305, 308 | ≤ 0.08 | ≤ 2.00 | ≤ 1.00 | 18.0 – 20.0 | 10.0 – 13.0 | – | Improved Formability |
| 309 / 309S | ≤ 0.20 / ≤ 0.08 | ≤ 2.00 | ≤ 1.00 | 22.0 – 24.0 | 12.0 – 15.0 | – | Heat Resistant |
| 310 / 310S | ≤ 0.25 / ≤ 0.08 | ≤ 2.00 | ≤ 1.50 | 24.0 – 26.0 | 19.0 – 22.0 | – | High Temp Oxidation Resistance |
| 316 | ≤ 0.08 | ≤ 2.00 | ≤ 1.00 | 16.0 – 18.0 | 10.0 – 14.0 | 2.0 – 3.0 | Marine Grade |
| 316L / 316H / 316Ti | ≤ 0.03 / 0.04–0.10 | ≤ 2.00 | ≤ 1.00 | 16.0 – 18.0 | 10.0 – 14.0 | 2.0 – 3.0 | Ti Stabilized (316Ti) |
| 317 / 317L | ≤ 0.08 / ≤ 0.03 | ≤ 2.00 | ≤ 1.00 | 18.0 – 20.0 | 11.0 – 15.0 | 3.0 – 4.0 | Higher Mo Content |
| 321 / 321H | ≤ 0.08 / 0.04–0.10 | ≤ 2.00 | ≤ 1.00 | 17.0 – 19.0 | 9.0 – 12.0 | – | Ti Stabilized |
| 347 / 347H | ≤ 0.08 / 0.04–0.10 | ≤ 2.00 | ≤ 1.00 | 17.0 – 19.0 | 9.0 – 13.0 | – | Nb Stabilized |
| 409L, 410, 410S | ≤ 0.08 | ≤ 1.00 | ≤ 1.00 | 11.5 – 13.5 | ≤ 0.75 | – | Ferritic / Martensitic |
| 420 | 0.15 – 0.40 | ≤ 1.00 | ≤ 1.00 | 12.0 – 14.0 | ≤ 0.75 | – | High Hardness |
| 429, 430, 430Ti, 439, 441, 444 | ≤ 0.08 | ≤ 1.00 | ≤ 1.00 | 16.0 – 18.0 | ≤ 0.75 | – | Ti/Nb Stabilized (where applicable) |
| S31803 (Duplex 2205) | ≤ 0.03 | ≤ 2.00 | ≤ 0.80 | 21.0 – 23.0 | 4.5 – 6.5 | 2.5 – 3.5 | N 0.14 – 0.20 |
UNS Codes & Grades
| Stainless Steel Grade | UNS Designation | Material Family | Notes / Characteristics |
|---|---|---|---|
| J7 | — (Proprietary / AISI 201 variant) | Austenitic (200 Series) | Low nickel, high manganese economical grade |
| J4 | — (Proprietary / AISI 201 variant) | Austenitic (200 Series) | Enhanced formability version of 201 |
| 201 | S20100 | Austenitic | Low Ni, Mn substituted stainless steel |
| 202 | S20200 | Austenitic | Improved corrosion over 201 |
| 301 | S30100 | Austenitic | High work hardening rate |
| 302 | S30200 | Austenitic | General purpose stainless steel |
| 304 | S30400 | Austenitic | Most widely used stainless steel |
| 304L | S30403 | Austenitic | Low carbon, improved weldability |
| 304H | S30409 | Austenitic | High carbon, elevated temperature strength |
| 305 | S30500 | Austenitic | Excellent deep drawing properties |
| 308 | S30800 | Austenitic | High nickel content, oxidation resistance |
| 309 | S30900 | Austenitic | Heat resistant stainless steel |
| 309S | S30908 | Austenitic | Low carbon heat resistant grade |
| 310 | S31000 | Austenitic | High temperature oxidation resistance |
| 310S | S31008 | Austenitic | Low carbon variant of 310 |
| 316 | S31600 | Austenitic | Molybdenum bearing, marine grade |
| 316L | S31603 | Austenitic | Low carbon, weld friendly |
| 316H | S31609 | Austenitic | High temperature strength |
| 316Ti | S31635 | Austenitic | Titanium stabilized for high temperature service |
| 317 | S31700 | Austenitic | Higher molybdenum than 316 |
| 317L | S31703 | Austenitic | Low carbon, enhanced corrosion resistance |
| 321 | S32100 | Austenitic | Titanium stabilized against carbide precipitation |
| 321H | S32109 | Austenitic | High carbon version of 321 |
| 347 | S34700 | Austenitic | Niobium stabilized stainless steel |
| 347H | S34709 | Austenitic | High temperature stabilized grade |
| 409L | S40900 | Ferritic | Automotive exhaust grade |
| 410 | S41000 | Martensitic | Hardenable stainless steel |
| 410S | S41008 | Ferritic | Low carbon ferritic variant |
| 420 | S42000 | Martensitic | High hardness and wear resistance |
| 429 | S42900 | Ferritic | Improved corrosion resistance over 409 |
| 430 | S43000 | Ferritic | General purpose ferritic stainless steel |
| 430Ti | S43932 | Ferritic | Titanium stabilized ferritic grade |
| 439 | S43900 | Ferritic | Improved weldability and corrosion resistance |
| 441 | S44100 | Ferritic | Nb/Ti stabilized ferritic stainless steel |
| 444 | S44400 | Ferritic | High corrosion resistance ferritic grade |
| S31803 (Duplex 2205) | S31803 | Duplex | High strength, chloride stress corrosion resistance |
Mechanical, Physical & Fabrication Properties
| Property Category | Grade Family | Applicable Grades | Typical Values / Characteristics |
|---|---|---|---|
| Mechanical Properties | Austenitic (200 / 300 Series) | J7, J4, 201, 202, 301, 302, 304, 304L, 304H, 305, 308, 309, 309S, 310, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H |
Tensile Strength: 515–750 MPa Yield Strength (0.2%): 205–310 MPa Elongation: 35–60% Non-magnetic (may become slightly magnetic after cold work) |
| Ferritic | 409L, 410S, 429, 430, 430Ti, 439, 441, 444 |
Tensile Strength: 380–520 MPa Yield Strength: 205–310 MPa Elongation: 18–30% Magnetic, not hardenable by heat treatment |
|
| Martensitic | 410, 420 |
Tensile Strength: 450–750 MPa (annealed) Can exceed 1000 MPa after heat treatment Lower ductility than austenitic grades Magnetic and heat treatable |
|
| Duplex | S31803 (2205) |
Tensile Strength: 620–880 MPa Yield Strength: ≥ 450 MPa Elongation: ~25% High strength with good toughness |
|
| Physical Properties | Austenitic | All 200 & 300 series listed |
Density: ~7.90–7.95 g/cm³ Thermal Conductivity: Low (14–16 W/m·K) Excellent corrosion resistance (Mo grades best in chlorides) |
| Ferritic / Martensitic | 400 series listed |
Density: ~7.65–7.75 g/cm³ Higher thermal conductivity than austenitic Moderate corrosion resistance |
|
| Duplex | S31803 |
Density: ~7.80 g/cm³ Excellent resistance to pitting & stress corrosion cracking Suitable for marine & chemical environments |
|
| Fabrication Properties | Formability | J4, J7, 201, 202, 304, 304L, 316, 316L, 321, 347 |
Excellent cold forming & deep drawing capability 301 suitable for work hardening applications |
| Weldability | All except high-carbon martensitic grades |
Excellent for austenitic & duplex coils Low-carbon (L) grades preferred for welding Ferritic grades require controlled welding procedures |
|
| Machinability | All grades |
Austenitic: Moderate (work hardening tendency) Ferritic: Better than austenitic Martensitic: Good after heat treatment |
Common Names & International Identifiers
| Stainless Steel Grade | Common / Trade Name | UNS Designation | EN / DIN Equivalent | JIS Equivalent |
|---|---|---|---|---|
| J4 | Low-Nickel Austenitic Stainless Steel | – | EN 1.4372 (approx.) | JIS SUS 201J4 |
| J7 | Enhanced Formability Austenitic SS | – | EN 1.4372 (modified) | JIS SUS 201J7 |
| 201 | Low-Nickel Austenitic Stainless Steel | S20100 | EN 1.4372 | SUS 201 |
| 202 | High-Manganese Austenitic Stainless Steel | S20200 | EN 1.4373 | SUS 202 |
| 301 | High Work-Hardening Stainless Steel | S30100 | EN 1.4310 | SUS 301 |
| 302 | General Purpose Austenitic SS | S30200 | EN 1.4310 (variant) | SUS 302 |
| 304 | 18-8 Stainless Steel | S30400 | EN 1.4301 | SUS 304 |
| 304L | Low Carbon 304 Stainless Steel | S30403 | EN 1.4307 | SUS 304L |
| 304H | High Carbon 304 Stainless Steel | S30409 | EN 1.4948 | SUS 304H |
| 305 | Deep Drawing Stainless Steel | S30500 | EN 1.4303 | SUS 305 |
| 308 | High Chromium-Nickel Stainless Steel | S30800 | EN 1.4308 | SUS 308 |
| 309 / 309S | Heat Resistant Stainless Steel | S30900 / S30908 | EN 1.4828 | SUS 309 / 309S |
| 310 / 310S | High Temperature Stainless Steel | S31000 / S31008 | EN 1.4845 | SUS 310 / 310S |
| 316 | Molybdenum Bearing Stainless Steel | S31600 | EN 1.4401 | SUS 316 |
| 316L | Low Carbon Marine Grade SS | S31603 | EN 1.4404 | SUS 316L |
| 316H | High Carbon 316 Stainless Steel | S31609 | EN 1.4919 | SUS 316H |
| 316Ti | Titanium Stabilized 316 SS | S31635 | EN 1.4571 | SUS 316Ti |
| 317 / 317L | High Molybdenum Stainless Steel | S31700 / S31703 | EN 1.4438 | SUS 317 / 317L |
| 321 / 321H | Titanium Stabilized Stainless Steel | S32100 / S32109 | EN 1.4541 | SUS 321 |
| 347 / 347H | Niobium Stabilized Stainless Steel | S34700 / S34709 | EN 1.4550 | SUS 347 |
| 409L | Automotive Exhaust Stainless Steel | S40903 | EN 1.4512 | SUS 409L |
| 410 / 410S | Martensitic Stainless Steel | S41000 / S41008 | EN 1.4006 | SUS 410 |
| 420 | Hardenable Martensitic SS | S42000 | EN 1.4021 | SUS 420 |
| 429 | Stabilized Ferritic Stainless Steel | S42900 | EN 1.4510 | SUS 429 |
| 430 / 430Ti | General Purpose Ferritic SS | S43000 | EN 1.4016 | SUS 430 |
| 439 | Stabilized Ferritic Stainless Steel | S43900 | EN 1.4510 | SUS 439 |
| 441 | High Temperature Ferritic SS | S44100 | EN 1.4509 | SUS 441 |
| 444 | High Corrosion Resistant Ferritic SS | S44400 | EN 1.4521 | SUS 444 |
| S31803 | Duplex Stainless Steel 2205 | S31803 / S32205 | EN 1.4462 | – |
Standards & International Equivalents
| Stainless Steel Grade | ASTM / ASME | UNS | EN / DIN (Europe) | JIS (Japan) | ISO |
|---|---|---|---|---|---|
| J4 | ASTM A240 (Equivalent Practice) | – | EN 10088-2 (approx. 1.4372) | SUS 201 J4 | ISO 15510 (approx.) |
| J7 | ASTM A240 (Equivalent Practice) | – | EN 10088-2 (modified 1.4372) | SUS 201 J7 | ISO 15510 (approx.) |
| 201 | ASTM A240 | S20100 | EN 1.4372 | SUS 201 | X12CrMnNiN17-7-5 |
| 202 | ASTM A240 | S20200 | EN 1.4373 | SUS 202 | X10CrMnNi18-8-4 |
| 301 | ASTM A240 | S30100 | EN 1.4310 | SUS 301 | X10CrNi18-8 |
| 302 | ASTM A240 | S30200 | EN 1.4310 (variant) | SUS 302 | X12CrNi18-9 |
| 304 | ASTM A240 | S30400 | EN 1.4301 | SUS 304 | X5CrNi18-10 |
| 304L | ASTM A240 | S30403 | EN 1.4307 | SUS 304L | X2CrNi18-9 |
| 304H | ASTM A240 | S30409 | EN 1.4948 | SUS 304H | X6CrNi18-10 |
| 305 | ASTM A240 | S30500 | EN 1.4303 | SUS 305 | X5CrNi18-12 |
| 308 | ASTM A240 | S30800 | EN 1.4308 | SUS 308 | X5CrNi19-10 |
| 309 / 309S | ASTM A240 | S30900 / S30908 | EN 1.4828 | SUS 309 / 309S | X15CrNiSi20-12 |
| 310 / 310S | ASTM A240 | S31000 / S31008 | EN 1.4845 | SUS 310 / 310S | X15CrNi25-20 |
| 316 | ASTM A240 | S31600 | EN 1.4401 | SUS 316 | X5CrNiMo17-12-2 |
| 316L | ASTM A240 | S31603 | EN 1.4404 | SUS 316L | X2CrNiMo17-12-2 |
| 316H | ASTM A240 | S31609 | EN 1.4919 | SUS 316H | X6CrNiMo17-12-2 |
| 316Ti | ASTM A240 | S31635 | EN 1.4571 | SUS 316Ti | X6CrNiMoTi17-12-2 |
| 317 / 317L | ASTM A240 | S31700 / S31703 | EN 1.4438 | SUS 317 / 317L | X2CrNiMo18-15-4 |
| 321 / 321H | ASTM A240 | S32100 / S32109 | EN 1.4541 | SUS 321 | X6CrNiTi18-10 |
| 347 / 347H | ASTM A240 | S34700 / S34709 | EN 1.4550 | SUS 347 | X6CrNiNb18-10 |
| 409L | ASTM A240 | S40903 | EN 1.4512 | SUS 409L | X2CrTi12 |
| 410 / 410S | ASTM A240 | S41000 / S41008 | EN 1.4006 | SUS 410 | X12Cr13 |
| 420 | ASTM A240 | S42000 | EN 1.4021 | SUS 420 | X20Cr13 |
| 429 | ASTM A240 | S42900 | EN 1.4510 | SUS 429 | X6CrMoTi17-1 |
| 430 / 430Ti | ASTM A240 | S43000 | EN 1.4016 | SUS 430 | X6Cr17 |
| 439 | ASTM A240 | S43900 | EN 1.4510 | SUS 439 | X3CrTi17 |
| 441 | ASTM A240 | S44100 | EN 1.4509 | SUS 441 | X2CrTiNb18 |
| 444 | ASTM A240 | S44400 | EN 1.4521 | SUS 444 | X2CrMoTi18-2 |
| S31803 (Duplex) | ASTM A240 | S31803 / S32205 | EN 1.4462 | – | X2CrNiMoN22-5-3 |
Applications
| Grade / Grade Group | Primary Characteristics | Typical Applications |
|---|---|---|
| J4, J7 | Cost-effective austenitic, moderate corrosion resistance | Kitchenware, utensils, sinks, decorative panels, interior cladding, household appliances, general fabrication where cost sensitivity is critical |
| 201, 202 | Austenitic with Mn substitution, good formability | Architectural panels, railings, cookware, automotive trims, elevator panels, decorative & light structural applications |
| 301, 302 | High work-hardening rate, good strength | Springs, clips, flexible connectors, conveyor belts, formed components requiring high tensile strength |
| 304, 304L, 304H | General-purpose corrosion-resistant austenitic steel | Food & beverage equipment, storage tanks, pressure vessels, heat exchangers, architectural facades, chemical equipment |
| 305, 308 | Enhanced formability, welding compatibility | Deep-drawn components, electrical enclosures, welded fabrications, automotive and appliance parts |
| 309, 309S | High chromium & nickel, heat resistant | Furnace linings, heat treatment baskets, exhaust systems, high-temperature ducting |
| 310, 310S | Excellent oxidation resistance at high temperatures | Kilns, radiant tubes, burner components, petrochemical heaters, thermal processing equipment |
| 316, 316L, 316H, 316Ti | Molybdenum-bearing, superior corrosion resistance | Marine equipment, pharmaceutical plants, chemical reactors, offshore structures, medical & hygienic applications |
| 317, 317L | Higher molybdenum content, enhanced pitting resistance | Chemical processing plants, acid handling equipment, pollution control systems, heat exchangers |
| 321, 321H | Titanium stabilized, resistant to intergranular corrosion | Aerospace components, exhaust manifolds, high-temperature piping, welded pressure vessels |
| 347, 347H | Niobium stabilized, excellent weld stability | Power plants, refinery equipment, superheater tubes, high-temperature structural parts |
| 409L | Low chromium ferritic, oxidation resistant | Automotive exhaust systems, silencers, heat shields, emission control components |
| 410, 410S | Martensitic, moderate corrosion, good strength | Cutlery, fasteners, turbine parts, valve components, wear-resistant applications |
| 420 | High hardness, wear resistance after heat treatment | Surgical instruments, blades, shafts, molds, tooling components |
| 429, 430, 430Ti | Ferritic, good oxidation resistance | Appliance panels, washing machine drums, architectural trims, automotive decorative parts |
| 439, 441, 444 | Stabilized ferritic, improved corrosion resistance | Automotive exhaust manifolds, hot water tanks, solar heaters, corrosion-resistant structural panels |
| S31803 (Duplex) | High strength, excellent chloride corrosion resistance | Offshore platforms, desalination plants, marine piping, oil & gas heat exchangers, chemical transport equipment |
Common Stainless Steel Coils Dimensions Chart
| Parameter | Standard / Common Range | Typical Options | Notes (Important) |
|---|---|---|---|
| Product Form | Hot Rolled Coil (HRC), Cold Rolled Coil (CRC) | Slit Coil, Narrow Coil, Full-Width Coil | Grade availability varies by mill and thickness range. |
| Thickness (mm) | 0.10 – 3.00 (CRC) / 2.00 – 20.00+ (HRC) | Common: 0.30, 0.50, 0.80, 1.0, 1.2, 1.5, 2.0, 3.0 | Sheets/plates are cut from coil; thicker “plate” often from HR plate, not coil. |
| Width (mm) | 20 – 2000 | Common: 1000, 1219/1220, 1250, 1500, 2000 | Slitting available to custom widths. |
| Coil Inner Diameter (ID) | 508 mm / 610 mm | 508 (20"), 610 (24") | Most standard coils supplied on these IDs. |
| Coil Outer Diameter (OD) | 1000 – 2000 mm (typical) | Depends on thickness + weight per coil | OD is not “fixed”; it changes with coil weight and thickness. |
| Coil Weight (per coil) | 1 MT – 30 MT (typical) | Common: 2–7 MT (service centers), 10–30 MT (mills) | Transportation + handling limits define max coil weight. |
| Edge Condition | Mill Edge (ME) / Slit Edge (SE) | Deburred slit edge on request | SE is preferred for fabrication and safer handling. |
| Finish (CRC) | 2B, BA, No.4 (satin), HL, Mirror | Protective PVC film optional | Finish affects cost, lead time, and surface suitability. |
| Standards (Typical) | ASTM / EN / JIS | ASTM A240/A480, EN 10088, JIS G4304/G4305 (as applicable) | Confirm exact standard per grade and end-use. |
| Grades Covered | J7, J4, 201, 202, 301, 302, 304/304L/304H, 305, 308, 309/309S, 310/310S, 316/316L/316H/316Ti, 317/317L, 321/321H, 347/347H, 409L, 410/410S, 420, 429, 430/430Ti, 439, 441, 444, S31803 (Duplex) | As per availability | Not every thickness/finish exists in every grade. Don’t claim it does. |
| What you want to calculate | Formula | Units | Notes |
|---|---|---|---|
| Weight per square meter | kg/m² = Thickness (mm) × Density (g/cm³) | kg/m² | For 304/316 (≈7.93), kg/m² ≈ Thickness × 7.93 |
| Weight per running meter (coil strip) | kg/m = Width (m) × Thickness (mm) × Density (g/cm³) | kg/m | Width must be in meters; thickness in mm. |
| Coil weight from length | Coil Weight (kg) = Length (m) × kg/m | kg | Used after slitting or for known coil length. |
| Coil length from weight | Length (m) = Coil Weight (kg) ÷ kg/m | m | Common for estimating output from a coil. |
| Coil weight from OD/ID (advanced) | Weight ∝ (OD² − ID²) × Width × Density | kg | Exact formula depends on OD/ID units and thickness packing; use for engineering estimates. |
| Thickness (mm) | kg/m² (Austenitic baseline 304/316) | Ferritic/Martensitic Factor (≈7.70/7.93 = 0.971) | Duplex Factor (≈7.80/7.93 = 0.984) |
|---|---|---|---|
| 0.30 | 2.38 | 2.31 | 2.34 |
| 0.50 | 3.97 | 3.85 | 3.91 |
| 0.80 | 6.34 | 6.16 | 6.24 |
| 1.00 | 7.93 | 7.70 | 7.81 |
| 1.20 | 9.52 | 9.24 | 9.37 |
| 1.50 | 11.90 | 11.55 | 11.71 |
| 2.00 | 15.86 | 15.40 | 15.61 |
| 3.00 | 23.79 | 23.10 | 23.41 |
| Grade Family | Included Grades | Typical Density (g/cm³) | Weight Factor vs 304/316 |
|---|---|---|---|
| Austenitic (Baseline) | J7, J4, 201, 202, 301, 302, 304, 304L, 304H, 305, 308, 309, 309S, 310, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H | ≈ 7.93 | 1.000 |
| Ferritic / Martensitic | 409L, 410, 410S, 420, 429, 430, 430Ti, 439, 441, 444 | ≈ 7.70 | 0.971 |
| Duplex | S31803 (2205) | ≈ 7.80 | 0.984 |
