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Nial Sheets and Plates, Houston, USA, is a world-class manufacturer and exporter of high-quality metal products, particularly Stainless Steel 321 Coils and Slitting Coils. These coils are designed to deliver superior resistance to high temperatures and intergranular corrosion, which renders them particularly suitable for harsh environments in aerospace, chemical processing, and power generation sectors. With emphasis on precision engineering, product reliability, and customer satisfaction, Nial provides economical, high-performance stainless steel solutions that are specially designed to cater to diverse industrial requirements with maintaining the highest levels of quality and durability.
321 Stainless Steel Coils and Slitting Coils contain chromium (17–19%), nickel (9–12%), and up to 0.7% titanium, stabilizing the alloy and avoiding carbide precipitation upon welding. This improves their resistivity against intergranular corrosion and allows for stable performance in high-temperature conditions, up to 870°C. The coils provide tensile strength of around 515 MPa, yield strength of 205 MPa, and elongation of around 40%. Excellent oxidation and corrosion resistance properties make them suitable for fabrication operations involving welding and thermal treatment, ensuring structural integrity under harsh conditions.
| Specifications | ASTM A240, ASME SA240 |
| Standard | JIS, ASTM, AISI, GB, EN, DIN |
| Surface | 2B, BA, HL, No. 4, Mirror etc. |
| Finish | Cold rolled, Hot rolled |
| Thickness | 0.3mm–100mm |
| Size | 1000mm, 1219mm, 1250mm, 1500mm, 1524mm, 2000mm |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50 mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| 347 | 515 | 205 | 40 | 92 | 201 |
| 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 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 321 Coils and Slitting Coils offer exceptional resistance to high temperatures and oxidation, making them ideal for use in heat exchangers, aerospace components, and chemical processing industries. The addition of titanium stabilizes the alloy, preventing carbide precipitation and ensuring excellent weldability. These coils also provide strong resistance to intergranular corrosion, pitting, and crevice corrosion. With high tensile and yield strength, they maintain structural integrity under extreme conditions. Their durability, combined with excellent formability and resistance to scaling, makes them a reliable choice for demanding industrial applications.
Yes, we offer custom sizes for Stainless Steel 321 Coils to meet specific project needs. Our team at Nial Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
321 Stainless Steel Coils and Slitting Coils find extensive applications in industries where thermal resistance and corrosion resistance are essential. They find extensive application in the aerospace, chemical processing, and power generation industries to fabricate exhaust manifolds, heat exchangers, furnace components, and reactor systems. In marine and automotive applications, they find application in exhaust systems and welded assemblies with high temperature exposure. Their superior intergranular corrosion resistance makes them ideal for food processing, pharmaceutical applications, and other situations where hygienic welding and fabrication under heat are needed. These coils provide long-term performance in corrosive and high-heat situations.
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Houston, TX 77041
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