SS 321/321H Chequered Plate Exporter, Stainless Steel 321/321H Cold Rolled Plates, SS 321/321H Circle, ASTM A240 Stainless Steel 321/321H Shim Sheets
Bombay Metal Corporation is a leading manufacturer, supplier, and exporter of SS 321 / 321H Sheets, Plates, and Coils manufactured in accordance with national and international quality standards. We produce high-quality Stainless Steel 321 / 321H Sheets utilizing premium-grade raw materials and advanced manufacturing technology. Our SS 321 / 321H Plates, Sheets, and Coils are available in various grades, specifications, thicknesses, dimensions, and sizes, and we also customize them as per customer requirements.
SS 321 is a titanium-stabilized austenitic stainless steel grade, specifically designed to prevent carbide precipitation during welding and high-temperature service. The addition of titanium makes SS 321 ideal for applications that involve prolonged exposure to elevated temperatures ranging from 425°C to 900°C. SS 321H, the higher-carbon variant of SS 321, offers superior creep resistance and high-temperature strength, making it a preferred choice in aerospace, power generation, and heat exchanger applications. Both SS 321 and SS 321H Sheets, Plates, and Coils offer excellent resistance to oxidation and intergranular corrosion, providing exceptional service life in demanding industrial environments.
Stainless Steel 321 / 321H Sheets, Plates and Coils Suppliers in Bangalore
Standard Specification for Stainless Steel 321 / 321H 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 321 / 321H 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 321 (UNS S32100) and 321H (UNS S32109) are titanium-stabilized grades of stainless steel offering excellent resistance to sensitization and intergranular corrosion. These grades are suitable for high-temperature service environments including furnace parts, exhaust systems, and heat exchangers. BMC is a leading SS 321 / 321H Sheets, Plates, and Coils manufacturer, supplier, and exporter offering diverse grades, sizes, and dimensions to meet global requirements.
For several applications — including aerospace components, power generation, chemical processing, and thermal equipment — we manufacture a wide selection of Stainless Steel 321 / 321H Sheets. These are available in different sizes and thicknesses as per customer needs. We offer highly efficient SS 321 / 321H Plates and Coils that can sustain high internal pressure at elevated temperatures. We also accept custom orders for ASTM A240 SS 321 / 321H 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 321 / 321H Sheets, Plates and Coils
| Parameter | Details |
|---|---|
| Grade | SS 321 / SS 321H (UNS S32100 / S32109) |
| 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 321 (Min/Max) | SS 321H (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% – 12.00% | 9.00% – 12.00% |
| Titanium (Ti) | 5×C Min – 0.70% Max | 4×(C+N) Min – 0.60% Max |
| Nitrogen (N) | 0.10% Max | 0.10% Max |
Industries and Applications Where Our SS 321 / 321H Sheets & Plates Are Used:-
Stainless Steel 321 / 321H Sheets, Plates, and Coils are used across a wide range of industries:
- Aircraft exhaust manifolds, jet engine parts, and aerospace structures
- High-temperature heat exchangers and thermal equipment
- Furnace parts, expansion joints, and bellows
- Chemical and petrochemical processing vessels
- Power generation boilers and superheater tubes
- Oil refinery equipment and catalytic crackers
- Pressure vessels for elevated-temperature service
- Cryogenic storage tanks and industrial containers
- Welded fabrications requiring resistance to sensitization
- 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, Pumps & Valves, Automotive, Food & Beverage, Pharmaceuticals, Construction & Architecture, and more.
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