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Type 321 Stainless Steel Coil is basic austenitic stainless steel contains 18% chromium, 8% nickel and addition of titanium. The addition of titanium offers stabilized products and improves intergranular corrosion resistance. Apart from this UNS S32100 Stainless Steel Coils have excellent resistance to scaling, high tensile strength and phase stability to aqueous corrosion.
321 stainless steel is renowned for its exceptional high-temperature capabilities, displaying superior stress rupture and creep resistance compared to 304 stainless steel. This grade excels in high-temperature applications, maintaining strong intergranular corrosion resistance and withstanding oxidation up to 816°C. Notably advantageous for welding components used at elevated temperatures, it also offers commendable low-temperature toughness. Additionally, 321 stainless steel maintains its non-magnetic properties in the annealed condition, enhancing its versatility in various industrial applications.
| Grades | Stainless Steel J1, J2, J4, 201, 202, 301, 304, 304H, 304L, 309, 309S, 310, 310S, 316, 316L, 316Ti, 321, 321H, 347, 409, 410, 410S, 420, 430, 441, 904L |
| Thickness | 0.02mm – 5.0mm |
| Width | 3.2mm – 1500mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER’S REQUIREMENT |
| Type of Material | STAINLESS STEEL SOFT, DEEP DRAW, EXTRA DEEP DRAW, QUARTER HARD, HALF HARD, FULL HARD. |
| Form | Coil / Strip |
| Test Certificate | Yes. |
| Finish | NO.1, 2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA. |
| Make | JINDAL, BAHRU, POSCO KOREA, POSCO THAINOX, COLUMBUS, ACERINOX, APERAM, TISCO, NISSHIN, NIPPON AND MANY MORE MILLS. |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
321 | min. max | – 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 | – | 9.0 12.0 | 0.10 | Ti=5(C+N) 0.70 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
321 | 515 | 205 | 40 | 95 | 217 |
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
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Behind the growth and success of Kuaima Steel is years of hard work and dedication in the steel industry and meeting customers' needs on time. Advanced technology, standard products, certified quality standards and the bestcustomer service make Kuiama Steel a true leader in the global market.
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