Stainless Steel 321 Sheets,Plates and Coils
Rose Metal Industries is a reputed manufacturer, stockist and global exporter of premium-grade Stainless Steel 321 (SS 321) sheets, plates and coils. We supply to major regions across India including Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry) and the Andaman & Nicobar Islands, as well as to international clients around the world. Our SS 321 flat products are engineered for high-temperature resistance, oxidation resistance, and long-term durability — making them suitable for demanding industrial applications worldwide..
SS 321 is a titanium-stabilized austenitic stainless steel that provides excellent resistance to intergranular corrosion and carbide precipitation during welding or thermal cycling. Rose Metal Industries offers SS 321 sheets, plates and coils in multiple finishes (hot rolled, cold rolled, pickled, polished) and thicknesses to suit industrial, petrochemical, power plant, and marine applications. Our large stock and flexible cut-to-size and coil slit facilities ensure fast turnaround and prompt delivery to clients in South India and overseas.
We maintain strict quality control standards — all SS 321 materials are tested for chemical composition, mechanical properties, surface finish and dimensional accuracy. Whether used for heat exchangers, boiler components, chemical processing plants, exhaust systems or structural assemblies, our SS 321 sheets and coils deliver reliable performance even under high-temperature, corrosive or cyclic conditions. Customers in Chennai, Coimbatore, Hyderabad, Bengaluru, Visakhapatnam, Vijayawada, and Port Blair rely on our consistent quality and fast supply chain.
Our SS 321 plates, sheets, and coils are suitable for fabrication, forming, welding and manufacturing of industrial components like furnace linings, kiln parts, chemical tanks, marine-grade equipment, offshore structures and high-temperature pipe supports. For export orders, we provide export-quality packaging, documentation (MTC, PMI reports) and compliance with global standards — making Rose Metal Industries a trusted global supplier of SS 321 flat products..
Specifications & Standards
| Standard | ASTM A240 / ASME SA240 (flat products – sheets & plates) |
|---|---|
| Grade | Stainless Steel 321 / 321H (UNS S32100) |
| Form | Sheets, Plates, Coils (Cold Rolled, Hot Rolled, Pickled, Polished) |
| Finishes | 2B, No.1, Polished, Pickled, Mill Finish |
Chemical Composition (Typical wt%)
| Element | Typical Content (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Titanium (Ti) | ≥ 5 × C% |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 0.75 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Mechanical Properties (Typical)
| Property | Typical Value |
|---|---|
| Tensile Strength (UTS) | ≈ 515 MPa min |
| Yield Strength (0.2% offset) | ≈ 205 MPa min |
| Elongation (in 50 mm) | ≥ 40% min |
| Hardness | Typical, suitable for forming & welding (HB/HRB varies by temper) |
Equivalent Grades & Cross References
- UNS: S32100
- EN / WNR: 1.4541 / 1.4542
- JIS: Comparable to SUS 321
- AISI / Generic: SS 321 / 321H (titanium-stabilized austenitic stainless steel)
Dimension Chart — Typical Stock Range
| Product Form | Thickness (mm) | Typical Width (mm) | Notes |
|---|---|---|---|
| Cold Rolled Sheets / Coils | 0.5 – 3.0 | 1000 / 1219 / 1250 / 1500 | Slit coils or cut-to-length sheets available |
| Hot Rolled Plates | 1.5 – 50.0 | 1250 / 1500 / 2000 | Cut-to-size per order |
| Coils (Hot/Cold) | 0.5 – 6.0 | Up to 1500 | Slit coils, package per export norms |
Applications
- Furnace components, kiln linings and heat-treatment equipment
- Boiler and heat exchanger plates, flue gas ducts and thermal plant fabrications
- Petrochemical, refinery and chemical processing equipment
- Marine and offshore structural components, seawater-handling systems
- Pressure vessels, storage tanks, waste‑gas incinerators
- Industrial ovens, burner assemblies, high-temperature structural frames
Rose Metal Industries meets global demand by exporting SS 321 sheets, plates and coils to the Middle East, Southeast Asia, Europe, Africa, and other international markets. We support bulk orders as well as small-lot supply, offering customization in thickness, width, coil size, slit coils, cut sheets and polished finishes. With competitive pricing, certified quality, and robust logistics, we serve as a one-stop supplier for stainless steel requirements worldwide..
Rose Metal Industries is a leading manufacturer and exporter of high-quality Stainless Steel 321 Sheets, Plates, and Coils. Our products are widely used in industrial, petrochemical, marine, and high-temperature applications across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), and the Andaman & Nicobar Islands. With a strong focus on quality and durability, we ensure that our SS 321 flat products meet international standards and provide excellent long-term performance..
Frequently Asked Questions (FAQ)
Q1: What is the difference between SS 321 and SS 304?
A: SS 321 is titanium-stabilized to prevent intergranular corrosion and carbide precipitation during welding and high-temperature use, whereas SS 304 is general-purpose stainless steel suitable for ambient or mildly corrosive conditions.
Q2: Do you provide Mill Test Certificates (MTC)?
A: Yes — Rose Metal Industries provides MTCs for all SS 321 sheets, plates, and coils. We can also facilitate third-party inspection and PMI/chemical analysis upon request.
Q3: What standards do your SS 321 flat products comply with?
A: We supply materials conforming to ASTM A240 / ASME SA240 standards and EN standards (e.g., EN 10088 series) depending on product form and customer requirements.
Q4: Can you supply custom thicknesses, widths, and finishes?
A: Yes — We offer cut-to-size sheets, plates, slit coils, and various surface finishes including hot-rolled, cold-rolled, pickled, and polished. Contact sales for lead times and minimum order quantities.
Q5: Which industries commonly use SS 321 sheets, plates, and coils?
A: SS 321 flat products are widely used in petrochemical, chemical processing, power plants, marine and offshore applications, furnace linings, boiler and heat exchanger fabrication, and high-temperature structural components.