SS 347/347H Chequered Plate Exporter, Stainless Steel 347/347H Cold Rolled Plates, SS 347/347H Circle, ASTM A240 Stainless Steel 347/347H Shim Sheets
Bombay Metal Corporation is a leading manufacturer, supplier, and exporter of SS 347 / 347H Sheets, Plates, and Coils manufactured in accordance with national and international quality standards. We produce high-quality Stainless Steel 347 / 347H Sheets utilizing premium-grade raw materials and advanced manufacturing technology. Our SS 347 / 347H Plates, Sheets, and Coils are available in various grades, specifications, thicknesses, dimensions, and sizes, and we also customize them as per customer requirements.
SS 347 is a niobium (columbium) and tantalum-stabilized austenitic stainless steel grade, specifically engineered to resist sensitization and intergranular corrosion during and after welding operations. The stabilization with niobium makes SS 347 highly suitable for applications involving prolonged exposure to elevated temperatures in the range of 425°C to 900°C. SS 347H, the higher-carbon variant of SS 347, provides enhanced creep strength and superior resistance to high-temperature oxidation, making it a preferred material in power generation, aerospace, and refinery applications. Both SS 347 and SS 347H Sheets, Plates, and Coils deliver exceptional performance in aggressive and thermally demanding environments, offering long service life and outstanding weldability.
Stainless Steel 347 / 347H Sheets, Plates and Coils Suppliers in Bangalore
Standard Specification for Stainless Steel 347 / 347H Sheets & Plates
ASTM A480 / SA480 – This specification covers general requirements for flat-rolled stainless and heat-resisting steel plate, sheet, and strip.
ASTM A240 / SA240 – This Standard Specification covers chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and general applications.
ASTM A666 / SA666 – Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, and Plate.
Bombay Metal Corporation is one of the well-known traders and dealers of quality Stainless Steel 347 / 347H Sheets, Plates, and Coils. In any structural application, sheets, plates, and coils play a critical role in piping systems and industrial structures, helping to increase efficiency and direct media flow including gas, steam, and liquid at elevated temperatures.
Steel Grade 347 (UNS S34700) and 347H (UNS S34709) are niobium-stabilized grades of stainless steel offering excellent resistance to sensitization and intergranular corrosion in the heat-affected zone of welds. These grades are particularly well-suited for high-temperature service environments including furnace components, boiler superheaters, and oil refinery equipment. BMC is a leading SS 347 / 347H Sheets, Plates, and Coils manufacturer, supplier, and exporter offering diverse grades, sizes, and dimensions to meet global industrial requirements.
For several applications — including power plant components, aerospace structures, chemical processing vessels, and thermal equipment — we manufacture a wide selection of Stainless Steel 347 / 347H Sheets. These are available in different sizes and thicknesses as per customer needs. We offer highly efficient SS 347 / 347H Plates and Coils that can sustain high internal pressure at elevated temperatures. We also accept custom orders for ASTM A240 SS 347 / 347H Sheets in various finishes and dimensions.
Product Types
Form: Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange), etc.
Finish: 2B, BA (Bright Annealed), No.1 (Hot Rolled), No.4 (Brushed), No.8 (Mirror), Satin, PVC Coated, etc.
Condition: Hot Rolled (HR), Cold Rolled (CR), Annealed & Pickled
Specifications of Stainless Steel 347 / 347H Sheets, Plates and Coils
| Parameter | Details |
|---|---|
| Grade | SS 347 / SS 347H (UNS S34700 / S34709) |
| Standard | ASTM A240, ASME SA240 |
| Thickness | 0.3 mm to 100 mm |
| Width | 1000 mm, 1219 mm, 1500 mm, 2000 mm or Custom |
| Length | 2000 mm, 2438 mm, 3048 mm, 6096 mm or Custom |
| Hardness | Brinell: 217 Max, Rockwell B: 95 Max |
| Tensile Strength | 515 MPa Min |
| Yield Strength | 205 MPa Min |
| Coil ID | 508 mm / 610 mm |
| Coil Weight | 3 MT – 15 MT |
Chemical Compositionof Stainless Steel 321 / 321H Sheets, Plates and Coils
| Element | SS 347 (Min/Max) | SS 347H (Min/Max) |
|---|---|---|
| Carbon (C) | 0.08% Max | 0.04% – 0.10% |
| Manganese (Mn) | 2.00% Max | 2.00% Max |
| Silicon (Si) | 0.75% Max | 0.75% Max |
| Phosphorus (P) | 0.045% Max | 0.045% Max |
| Sulphur (S) | 0.030% Max | 0.030% Max |
| Chromium (Cr) | 17.00% – 19.00% | 17.00% – 19.00% |
| Nickel (Ni) | 9.00% – 13.00% | 9.00% – 13.00% |
| Niobium + Tantalum (Nb+Ta) | 10×C Min – 1.00% Max | 8×C Min – 1.00% Max |
| Nitrogen (N) | 0.10% Max | 0.10% Max |
Industries and Applications Where Our SS 347 / 347H Sheets & Plates Are Used:-
Stainless Steel 347 / 347H Sheets, Plates, and Coils are used across a wide range of industries:
- Power generation boiler superheaters and reheaters
- Aircraft exhaust systems, jet engine components, and aerospace structures
- Oil refinery and catalytic cracker components
- High-temperature heat exchangers and pressure vessels
- Chemical and petrochemical processing equipment
- Furnace parts, radiant tubes, and thermal processing equipment
- Welded fabrications requiring resistance to sensitization and intergranular corrosion
- Expansion joints, bellows, and flexible connectors
- Cryogenic storage equipment and industrial containers
- Pharmaceutical and food processing equipment
Cities/Area we deliver to:-
Aerospace & Defence, Power Generation, Oil & Natural Gas, Petrochemicals, Fertilizers, Chemicals, Cement Industries, Shipbuilders, Heat Treatment Industries, Pumps & Valves, Automotive, Food & Beverage, Pharmaceuticals, Nuclear Energy, Construction & Architecture, and more.
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