Stainless Steel 321 Sheets are advanced materials made to meet the requirements of challenging industrial processes where heat resistance, corrosion resistance, and strength are the key factors. We at SMM Industries LLP provide top-class Stainless Steel 321 Sheets made to international specifications, including ASTM A240 and ASME SA240. These sheets are stabilized with titanium, characterised by their good strength at raised temperature and resistance to intergranular corrosion. Their mechanical properties, weld ability, and resistance to oxidation make them a choice material in industries working in harsh conditions.
Stainless Steel 321 Sheets are an austenitic steel alloy mainly made of chromium and nickel with the inclusion of titanium to stabilize it. The 321 prevents the formation of carbides during welding and gives it higher resistance to intergranular corrosion. This provides the material better performance in conditions of heat, specifically 900–1500°F. Stainless Steel 321 has a better thermal stability and mechanical strength compared to others like 304. Our Stainless Steel 321 Sheets Manufacturers provide accurate engineering to meet the requirements of the client as per international standards.
The virtues of Stainless Steel 321 Sheets are many. These sheets retain strength and structural integrity at raised temperatures and are consequently highly dependable in conditions of high stress or high pressure. The titanium stabilizing action prevents the sheets from sensitization and intergranular corrosion, particularly during welding operations.
Additionally, they possess excellent forming and welding properties and are readily fabricatable. Acid resistance and resistance to an oxidizing atmosphere further contribute to their long service life in aggressive industrial situations. Our Stainless Steel 321 Sheets Suppliers supply sheets with low maintenance requirements and a longer period of service.
Stainless Steel 321 Sheets are used across various industries due to their adaptability and performance. SMM Industries LLP ensures every sheet meets strict global standards for application-specific needs.
Stainless Steel 321 Sheets are widely used in aerospace engineering for their excellent performance under high mechanical stress and elevated temperatures.
In chemical processing plants, they serve critical roles due to their resistance to organic and inorganic acids.
Pharmaceutical equipment manufacturing often relies on these sheets for their non-reactive, clean surface properties.
Exhaust manifolds and automotive components are built using 321 sheets due to their thermal stability and resistance to oxidation.
They are used in heat exchangers, where corrosion resistance and high strength are vital.
Furnace parts and boiler casings rely on 321 stainless steel for their resistance to scaling and structural durability.
Food processing equipment uses 321 stainless for its hygiene compliance and anti-corrosive surface.
They are also used in petrochemical industries where both corrosion and heat resistance are critical factors.
Refinery equipment that deals with high temperatures and aggressive chemicals frequently employ Stainless Steel 321 Sheets.
In nuclear power plants, 321 stainless is chosen for its strength, integrity, and resistance to irradiation corrosion.
SMM Industries LLP is a prominent steel industry player in the world, functioning as seasoned Stainless Steel 321 Sheets Exporters. Our sheets meet the specified ASTM A240 and ASME SA240 standards, providing enhanced quality to different industries. These standards specify the mechanical properties, chemical composition, and heat treatment procedures for the stainless steel plates and sheets for the purposes of pressure vessels and structures.
Each sheet in our stock passes rigid quality checking to provide consistent performance during service. Various nations designate Stainless Steel 321 Sheets by different codes and specifications. In the United States, the sheets are designated as per ASTM A240 and ASME SA240. Within the European Union, they are designated as EN 1.4541 or X6CrNiTi18-10.
Japan knows them as JIS SUS 321, while the United Kingdom knows them as the British Standard 321S31. Germany uses DIN 1.4541, the French designation being AFNOR Z6CNT18-10, and the ISO designation as ISO 15510 X6CrNiTi18-10. Within Russia, they would be designated as GOST 08Ch18N10T, while in Italy, they are referred to as UNI X6CrNiTi18-10. These cross-references enable the usage and specification of Stainless Steel 321 Sheets throughout the world markets without fear of compatibility issues and compliance.
Our Stainless Steel 321 Sheets at SMM Industries LLP are not only renowned for their quality but even for their versatility across industries and geography. Our sheets are available in various thickness, width, and length as per the requirement of the application. If it is heat exchangers, pressure vessels, chemical tanks, or structural components, our sheets deliver with reliability and endurance. Supported by third-party inspection certificates, mill test certificates, and prompt shipment, we guarantee customer satisfaction from specification to final delivery.
Our materials are designed to fulfill performance standards and maximize long-term performance. When you partner with SMM Industries LLP, you're not getting only a supplier—you're getting a valued partner in stainless steel solutions. We keep our product quality and service aligned with yours from project consultation to after-delivery support.
| Standard | ASTM A240 / ASME SA240 |
|---|---|
| Thickness | 0.3 mm to 120 mm |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Sheets Surface Finish | No.1, 2B, BA, 8K Mirror, Hairline, satin (Met with Plastic Coated) Embossed, brush, No.4, HL, matt, pvc etc. |
| Sheets Hardness | Half Hard, Quarter Hard, Soft, Hard, Spring Hard |
| Value added services for Sheets | Waterjet cutting, Plasma cutting, Laser cutting, Bending and mechanical processing, edge preparation, welding, sawing and shearing |
| Value Added Service | Cladding, Heat Treatment, Annealed, Pickling, Polish, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
|---|---|---|---|---|
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
|---|---|---|---|---|---|---|---|---|---|
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 - 12.00 | 5(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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