Stainless Steel Sheets & Plates
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Descriptions
Navkar Metal Syndicate offers a comprehensive range of Stainless Steel Sheets and Plates manufactured as per international standards such as ASTM A240 / ASME SA240 / EN / JIS / DIN. Our inventory includes a wide variety of austenitic, ferritic, martensitic, and duplex stainless steels like SS 201, 202, 301, 304, 304L, 304H, 309, 310, 310S, 316, 316L, 316Ti, 317, 321, 347, 409, 410, 420, 430, 441, 444, and S31803.
These sheets and plates are available in hot rolled (HR), cold rolled (CR), annealed, pickled, mirror finish, brushed, matte, and decorative patterns, with thickness ranging from 0.3 mm to 100 mm and widths up to 2500 mm. Each product undergoes strict quality control and testing to ensure high mechanical strength, excellent corrosion resistance, and long service life even under harsh environments.
Our stainless steel sheets and plates are widely used in industries such as chemical processing, food and beverage, heat exchangers, architecture, marine equipment, oil & gas, and fabrication. We also provide custom sizes, cutting, polishing, and surface finishing as per customer specifications.
As a trusted supplier, stockist, and exporter based in India, Navkar Metal Syndicate ensures prompt delivery, competitive pricing, and superior quality for all stainless steel grades.
Chemical Composition
The following table lists the typical chemical composition (in % by weight) for various stainless steel grades offered by Navkar Metal Syndicate. Actual values may vary slightly depending on standards such as ASTM, EN, JIS, or IS.
| Grade | Chemical Composition (% by weight) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C (max) | Mn (max) | P (max) | S (max) | Si (max) | Cr | Ni | Mo | Other Elements | ||
| J7 | 0.10 | 8.50–10.00 | 0.09 | 0.03 | 0.75 | 15.00–16.00 | 0.25–0.50 | - | - | |
| J4 | 0.10 | 8.50–10.00 | 0.09 | 0.03 | 0.75 | 15.00–16.00 | 0.80–1.20 | - | - | |
| 201 | 0.15 | 5.50–7.50 | 0.06 | 0.03 | 1.00 | 16.00–18.00 | 3.50–5.50 | - | N 0.25 | |
| 202 | 0.15 | 7.50–10.00 | 0.06 | 0.03 | 1.00 | 17.00–19.00 | 4.00–6.00 | - | N 0.25 | |
| 301 | 0.15 | 2.00 | 0.045 | 0.03 | 1.00 | 16.00–18.00 | 6.00–8.00 | - | - | |
| 302 | 0.15 | 2.00 | 0.045 | 0.03 | 1.00 | 17.00–19.00 | 8.00–10.00 | - | - | |
| 304 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 8.00–11.00 | - | - | |
| 304L | 0.035 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 8.00–13.00 | - | - | |
| 304H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 8.00–11.00 | - | - | |
| 305 | 0.12 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 10.50–13.00 | - | - | |
| 308 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 19.00–21.00 | 10.00–12.00 | - | - | |
| 309 | 0.20 | 2.00 | 0.045 | 0.03 | 1.00 | 22.00–24.00 | 12.00–15.00 | - | - | |
| 309S | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 22.00–24.00 | 12.00–15.00 | - | - | |
| 310 | 0.25 | 2.00 | 0.045 | 0.03 | 1.50 | 24.00–26.00 | 19.00–22.00 | - | - | |
| 310S | 0.08 | 2.00 | 0.045 | 0.03 | 1.50 | 24.00–26.00 | 19.00–22.00 | - | - | |
| 316 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 16.00–18.00 | 11.00–14.00 | 2.00–3.00 | - | |
| 316L | 0.035 | 2.00 | 0.045 | 0.03 | 0.75 | 16.00–18.00 | 10.00–15.00 | 2.00–3.00 | - | |
| 316H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 16.00–18.00 | 11.00–14.00 | 2.00–3.00 | - | |
| 316Ti | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 16.00–18.00 | 10.00–14.00 | 2.00–2.50 | Ti ≥ 5×C (min) | |
| 317 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 11.00–14.00 | 3.00–4.00 | - | |
| 317L | 0.035 | 2.00 | 0.045 | 0.03 | 0.75 | 18.00–20.00 | 11.00–15.00 | 3.00–4.00 | - | |
| 321 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | - | Ti ≥ 5×C | |
| 321H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | - | Ti ≥ 5×C | |
| 347 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | - | Nb + Ta ≥ 10×C | |
| 347H | 0.04–0.10 | 2.00 | 0.045 | 0.03 | 0.75 | 17.00–19.00 | 9.00–13.00 | - | Nb + Ta ≥ 10×C | |
| 409L | 0.03 | 1.00 | 0.04 | 0.02 | 1.00 | 10.50–11.70 | 0.05 | - | Ti ≥ 6×(C+N) | |
| 410 | 0.15 | 1.00 | 0.04 | 0.03 | 1.00 | 11.50–13.50 | 0.75 | - | - | |
| 410S | 0.08 | 1.00 | 0.04 | 0.03 | 1.00 | 11.50–13.50 | 0.60 | - | - | |
| 420 | 0.15 min | 1.00 | 0.045 | 0.03 | 1.00 | 10.50–15.50 | 1.00–2.50 | - | Mo 0.20–1.20 | |
| 429 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 14.00–16.00 | * | - | - | |
| 430 | 0.12 | 1.00 | 0.04 | 0.03 | 1.00 | 16.00–18.00 | 0.75 | - | - | |
| 430Ti | 0.12 | 1.25 | 0.06 | 0.15 | 1.00 | 16.00–18.00 | - | - | Ti 0.75 | |
| 439 | 0.03 | 1.00 | 0.04 | 0.03 | 1.00 | 17.00–19.00 | 0.50 | - | Ti [0.20+4(C+N)] | |
| 441 | 0.03 | 1.00 | 0.04 | 0.03 | 1.00 | 17.50–19.50 | 1.00 | 1.75–2.50 | Ti 0.10–0.50 | |
| 444 | 0.025 | 1.00 | 0.04 | 0.03 | 1.00 | 17.50–19.50 | 1.00 | 1.75–2.50 | (Ti+Cb)[0.20+4(C+N)] | |
| S31803 (Duplex) | 0.025 | 1.00 | 0.04 | 0.03 | 1.00 | 21.00–23.00 | 4.50–6.50 | 2.50–3.50 | - | |
Mechanical, Physical & Fabrication Properties
Below are the typical mechanical and physical properties of stainless steel grades supplied by Navkar Metal Syndicate. These values are indicative and may vary with product form, manufacturing process, and heat treatment.
| Grade | Tensile Strength (MPa) |
Yield Strength (MPa) |
Hardness (HB) |
Density (g/cm³) |
Melting Point (°C) |
|---|---|---|---|---|---|
| J7 | 515 | 240 | 180 | 7.90 | 1400–1450 |
| J4 | 520 | 240 | 180 | 7.90 | 1400–1450 |
| 201 | 515–750 | 275–350 | 200 | 7.93 | 1400–1455 |
| 202 | 515–750 | 275–350 | 200 | 7.93 | 1400–1455 |
| 301 | 680–895 | 275 | 200 | 7.93 | 1400–1450 |
| 302 | 620–860 | 275 | 190 | 7.93 | 1400–1450 |
| 304 | 515–750 | 205 | 150–200 | 8.00 | 1400–1450 |
| 304L | 485 | 170 | 150–190 | 8.00 | 1400–1450 |
| 304H | 515–750 | 205 | 150–200 | 8.00 | 1400–1450 |
| 305 | 515–750 | 205 | 150–200 | 8.03 | 1400–1450 |
| 308 | 600–860 | 240 | 160–200 | 7.93 | 1395–1450 |
| 309 | 620–860 | 275 | 170–200 | 7.98 | 1390–1450 |
| 309S | 620–860 | 275 | 170–200 | 7.98 | 1390–1450 |
| 310 | 515–740 | 205 | 150–200 | 7.90 | 1400–1455 |
| 310S | 515–740 | 205 | 150–200 | 7.90 | 1400–1455 |
| 316 | 515–760 | 205 | 150–200 | 8.00 | 1370–1400 |
| 316L | 485 | 170 | 150–190 | 8.00 | 1370–1400 |
| 316H | 515–760 | 205 | 150–200 | 8.00 | 1370–1400 |
| 316Ti | 515–760 | 205 | 150–200 | 8.00 | 1370–1400 |
| 317 | 515–760 | 205 | 150–200 | 8.00 | 1370–1395 |
| 317L | 485–760 | 170–205 | 150–200 | 8.00 | 1370–1395 |
| 321 | 515–750 | 205 | 150–200 | 8.00 | 1400–1425 |
| 321H | 515–750 | 205 | 150–200 | 8.00 | 1400–1425 |
| 347 | 515–750 | 205 | 150–200 | 7.93 | 1395–1450 |
| 347H | 515–750 | 205 | 150–200 | 7.93 | 1395–1450 |
| 409L | 380–620 | 170–240 | 200 | 7.75 | 1450–1510 |
| 410 | 450–650 | 205–450 | 200 | 7.75 | 1480–1530 |
| 410S | 380–550 | 170–240 | 180 | 7.70 | 1480–1530 |
| 420 | 700–850 | 345–450 | 250 | 7.75 | 1480–1530 |
| 429 | 415–620 | 205–275 | 170–200 | 7.70 | 1450–1510 |
| 430 | 450–600 | 205–310 | 180–200 | 7.70 | 1425–1510 |
| 430Ti | 450–600 | 205–310 | 180–200 | 7.70 | 1425–1510 |
| 439 | 450–600 | 240 | 180–200 | 7.70 | 1425–1510 |
| 441 | 480–620 | 250–350 | 200 | 7.70 | 1425–1510 |
| 444 | 480–620 | 250–350 | 200 | 7.70 | 1425–1510 |
| S31803 (Duplex) | 620–850 | 450–550 | 250 | 7.80 | 1350–1450 |
Applications
Navkar Metal Syndicate supplies stainless steel sheets and plates designed to meet the needs of diverse industries. These materials are chosen for their exceptional strength, corrosion resistance, formability, and high-temperature performance. Below are grade-specific and industry-specific applications.
Grade-wise Applications
- J7, J4, 201, 202 – Kitchenware, architectural cladding, sinks, railway coaches, food processing equipment, and decorative panels.
- 301, 302, 304, 304L, 304H – Chemical containers, architectural facades, dairy & beverage equipment, and heat exchangers.
- 305, 308, 309, 309S – Furnace parts, heat treatment trays, and exhaust systems due to high oxidation resistance.
- 310, 310S – Reheating furnaces, kilns, and high-temperature process equipment.
- 316, 316L, 316H, 316Ti – Marine environments, desalination plants, chemical plants, and pharmaceutical industries.
- 317, 317L – Pulp & paper industry, condensers, and chemical handling equipment requiring higher Mo content.
- 321, 321H – Aircraft exhaust manifolds, expansion bellows, and welded chemical process piping.
- 347, 347H – Pressure vessels, refinery equipment, and superheater tubes (stabilized for welding).
- 409L, 410, 410S, 420 – Automotive exhaust systems, cutlery, turbine blades, and industrial knives.
- 429, 430, 430Ti, 439 – Household appliances, architectural trims, washing machine drums, and decorative applications.
- 441, 444 – Heat exchanger tubing, water heaters, food processing, and automotive mufflers.
- S31803 (Duplex) – Offshore oil rigs, seawater piping, pressure vessels, and desalination equipment requiring strength and corrosion resistance.
Industry-wise Applications
- Oil & Gas: Offshore platforms, pipelines, heat exchangers, and separators.
- Chemical & Petrochemical: Reactors, tanks, distillation columns, and acid handling systems.
- Food & Beverage: Processing lines, dairy tanks, brewery vessels, and kitchen equipment.
- Pharmaceutical: Cleanroom panels, sterile piping, and reactor vessels.
- Architecture & Construction: Facades, elevators, decorative wall panels, and roofing.
- Marine & Offshore: Shipbuilding, desalination, underwater piping, and seawater condensers.
- Automotive: Exhaust systems, catalytic converter shells, and trim components.
- Power Generation: Turbine casings, superheater tubes, and boiler liners.
- Textile & Paper: Dryers, bleaching systems, and pulp digesters.
- Aerospace: Engine components, jet exhausts, and structural supports.
- Water Treatment: Reverse osmosis systems, evaporators, and storage tanks.
Standards & International Equivalents:
The following table lists common international standards and designations for major stainless steel grades supplied by Navkar Metal Syndicate. Equivalents are provided across ASTM / ASME, EN / DIN, JIS, and UNS specifications.
| Grade | UNS | ASTM / ASME | EN / DIN | JIS | BS / AFNOR / ISO Equivalents |
|---|---|---|---|---|---|
| J7 | - | - | 1.4371 (AISI 201Mod) | - | Indian Make Austenitic (Low Ni) |
| J4 | - | - | 1.4375 | - | Indian Low-Nickel Alloy, Chromium-Manganese Grade |
| 201 | S20100 | ASTM A240 / A666 | 1.4372 | SUS201 | BS 420S21 |
| 202 | S20200 | ASTM A240 / A666 | 1.4373 | SUS202 | BS 420S17 |
| 301 | S30100 | ASTM A240 / A666 | 1.4310 | SUS301 | BS 301S21 |
| 302 | S30200 | ASTM A240 / A666 | 1.4319 | SUS302 | BS 302S25 |
| 304 | S30400 | ASTM A240 / A276 | 1.4301 | SUS304 | BS 304S15 / AISI 304 |
| 304L | S30403 | ASTM A240 / A276 | 1.4307 | SUS304L | BS 304S11 |
| 304H | S30409 | ASTM A240 / A312 | 1.4948 | SUS304H | BS 304S51 |
| 305 | S30500 | ASTM A240 | 1.4303 | SUS305 | BS 305S19 |
| 308 | S30800 | ASTM A240 | 1.4828 | SUS308 | BS 308S24 |
| 309 | S30900 | ASTM A240 | 1.4828 | SUS309 | BS 309S24 |
| 309S | S30908 | ASTM A240 | 1.4833 | SUS309S | - |
| 310 | S31000 | ASTM A240 | 1.4840 | SUS310 | BS 310S24 |
| 310S | S31008 | ASTM A240 | 1.4845 | SUS310S | BS 310S16 |
| 316 | S31600 | ASTM A240 / A276 | 1.4401 | SUS316 | BS 316S31 |
| 316L | S31603 | ASTM A240 / A312 | 1.4404 | SUS316L | BS 316S11 |
| 316H | S31609 | ASTM A240 / A312 | 1.4919 | SUS316H | BS 316S51 |
| 316Ti | S31635 | ASTM A240 / A312 | 1.4571 | SUS316Ti | BS 320S31 |
| 317 | S31700 | ASTM A240 | 1.4449 | SUS317 | - |
| 317L | S31703 | ASTM A240 | 1.4438 | SUS317L | - |
| 321 | S32100 | ASTM A240 / A312 | 1.4541 | SUS321 | BS 321S31 |
| 321H | S32109 | ASTM A240 / A312 | 1.4878 | SUS321H | BS 321S51 |
| 347 | S34700 | ASTM A240 / A312 | 1.4550 | SUS347 | BS 347S31 |
| 347H | S34709 | ASTM A240 / A312 | 1.4961 | SUS347H | BS 347S51 |
| 409L | S40900 | ASTM A240 / A268 | 1.4512 | SUS409L | BS 409S19 |
| 410 | S41000 | ASTM A240 / A276 | 1.4006 | SUS410 | BS 410S21 |
| 410S | S41008 | ASTM A240 | 1.4000 | SUS410S | BS 410S45 |
| 420 | S42000 | ASTM A240 / A276 | 1.4021 | SUS420J1 | BS 420S37 |
| 429 | S42900 | ASTM A240 | 1.4510 | SUS429 | - |
| 430 | S43000 | ASTM A240 / A276 | 1.4016 | SUS430 | BS 430S15 |
| 430Ti | - | ASTM A240 | 1.4510 | SUS430Ti | - |
| 439 | S43035 | ASTM A240 / A268 | 1.4510 | SUS439 | - |
| 441 | S43932 | ASTM A240 / A268 | 1.4509 | SUS441 | - |
| 444 | S44400 | ASTM A240 / A268 | 1.4521 | SUS444 | - |
| S31803 (Duplex) | S31803 | ASTM A240 / A789 | 1.4462 | SUS329J3L | EN 10088 / BS 318S13 |
Common Names & International Identifiers
Stainless steel grades are often known by multiple trade names, international identifiers, or legacy designations. The following table summarizes common names, series classifications, UNS identifiers, and trade equivalents for popular stainless steel grades supplied by Navkar Metal Syndicate.
| Grade | Common / Trade Names | AISI / Series | UNS Number | Remarks / Identifier Notes |
|---|---|---|---|---|
| J7 | Low-Nickel Austenitic Stainless | 200 Series (India) | - | Developed as cost-effective 201 alternative with reduced Ni |
| J4 | Cr–Mn–Ni Stainless | 200 Series (India) | - | Popular Indian alloy for decorative & kitchen applications |
| 201 | Nickel-Saving Austenitic | AISI 201 | S20100 | Good toughness; used in architecture & transport |
| 202 | Nickel-Saving Stainless | AISI 202 | S20200 | Similar to 201 but higher Mn & N for improved strength |
| 301 | Full Hard Stainless | AISI 301 | S30100 | High strength; automotive trim and springs |
| 302 | Chromium-Nickel Stainless | AISI 302 | S30200 | Similar to 304; higher C content |
| 304 | 18/8 Stainless Steel | AISI 304 | S30400 | Most common stainless steel grade |
| 304L | Low Carbon 18/8 Stainless | AISI 304L | S30403 | Improved weldability, lower sensitization |
| 304H | High Carbon 18/8 | AISI 304H | S30409 | For high temperature service applications |
| 305 | High Nickel Austenitic | AISI 305 | S30500 | Excellent cold forming; non-magnetic |
| 308 | Welding Grade Stainless | AISI 308 | S30800 | Used for welding 304 and similar steels |
| 309 | Heat-Resisting Stainless | AISI 309 | S30900 | High temp oxidation resistance |
| 309S | Low Carbon 309 | AISI 309S | S30908 | Better weldability and toughness |
| 310 | Heat-Resisting Stainless | AISI 310 | S31000 | High Ni & Cr; furnace and refractory parts |
| 310S | Low Carbon 310 | AISI 310S | S31008 | Improved weldability; oxidation resistance |
| 316 | Marine Grade Stainless / 18-8-2 | AISI 316 | S31600 | Contains Mo for chloride corrosion resistance |
| 316L | Low Carbon Marine Grade | AISI 316L | S31603 | Preferred for weld-fabricated applications |
| 316H | High Carbon Marine Grade | AISI 316H | S31609 | High-temperature strength; pressure vessels |
| 316Ti | Titanium Stabilized 316 | AISI 316Ti | S31635 | Stabilized with Ti for anti-sensitization |
| 317 | High Molybdenum Austenitic | AISI 317 | S31700 | Superior pitting resistance |
| 317L | Low Carbon 317 | AISI 317L | S31703 | Improved weldability and corrosion resistance |
| 321 | Titanium Stabilized Stainless | AISI 321 | S32100 | Resists intergranular corrosion |
| 321H | High Carbon 321 | AISI 321H | S32109 | High temperature variant of 321 |
| 347 | Niobium Stabilized Stainless | AISI 347 | S34700 | Resists carbide precipitation during welding |
| 347H | High Carbon 347 | AISI 347H | S34709 | Enhanced creep strength at elevated temperatures |
| 409L | Automotive Exhaust Grade | AISI 409L | S40900 | Low carbon ferritic stainless steel |
| 410 | General Purpose Martensitic | AISI 410 | S41000 | Cutlery, pumps, valves; hardenable |
| 410S | Low Carbon 410 | AISI 410S | S41008 | Improved ductility and weldability |
| 420 | Cutlery Grade Stainless | AISI 420 | S42000 | Can be hardened by heat treatment |
| 429 | Ferritic Utility Stainless | AISI 429 | S42900 | Heat-resistant; used in mufflers & liners |
| 430 | 16/0 Stainless Steel | AISI 430 | S43000 | Decorative and appliance applications |
| 430Ti | Stabilized Ferritic Stainless | AISI 430Ti | - | Titanium stabilized version of 430 |
| 439 | Automotive Exhaust Ferritic | AISI 439 | S43035 | Improved weldability & corrosion resistance |
| 441 | Dual Stabilized Ferritic | AISI 441 | S43932 | Ti+Nb stabilized, good oxidation resistance |
| 444 | Super Ferritic Stainless | AISI 444 | S44400 | 2% Mo; used in hot water tanks & exhaust systems |
| S31803 (Duplex) | Duplex 2205 | AISI 2205 | S31803 | High strength duplex stainless; offshore, marine & pressure service |
Common Product Forms & Dimensions
Stainless Steel Sheets & Plates — Standard Sizes & Size Chart
Standard stainless steel sheet and plate sizes include common dimensions like 1000 × 2000 mm, 1220 × 2440 mm (4′ × 8′), 1500 × 3000 mm, and 2000 × 4000 mm. Thicknesses range from 0.1 mm thin sheets up to 60 mm+ heavy plates. Availability depends on supplier, steel grade (e.g., 304, 316), application, and finish (2B, BA, satin).
| Size (mm) | Size (inches) | Typical Classification | Notes |
|---|---|---|---|
| 1000 × 2000 | ≈ 39.37″ × 78.74″ | Sheet / Plate (by thickness) | Common stock size |
| 1220 × 2440 | 4′ × 8′ | Sheet / Plate | Global standard sheet size |
| 1500 × 3000 | ≈ 59.06″ × 118.11″ | Sheet / Plate | Popular for fabrication & laser cutting |
| 2000 × 4000 | ≈ 78.74″ × 157.48″ | Plate (often medium/thick) | For large panels/plates |
| 2500 × 1250 | ≈ 98.43″ × 49.21″ | Sheet / Plate | Wide format for nesting |
| 3000 × 1500 | ≈ 118.11″ × 59.06″ | Sheet / Plate | Common for architectural use |
| 4000 × 2000 | ≈ 157.48″ × 78.74″ | Plate | Large-format plate for heavy-duty projects |
| Category | Thickness Range | Typical Uses |
|---|---|---|
| Thin sheets | 0.1 mm to 6 mm | Cladding, decorative panels, lightweight structures |
| Medium plates | 6 mm to 25 mm | Pressure vessels, kitchen equipment, tanks |
| Thick plates | 25 mm to 60 mm+ | Marine platforms, chemical reactors, heavy machinery |
| Widths (mm) | Typical Length Range (mm) | Remarks |
|---|---|---|
| 1000 | 2000 to 6000 | Standard coil/stock width |
| 1250 | Common sheet width (pairs with 2500 mm length) | |
| 1500 | Popular for 3000 mm length | |
| 2000 | Often used with 4000 mm length plate |
| Factor | Details |
|---|---|
| Supplier & Grade | Size & thickness depend on supplier and grade (e.g., 304, 316). |
| Application | Project requirements dictate dimensions; custom cut-to-size commonly available. |
| Finish | Finishes like 2B, BA, satin can influence availability and lead time. |
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