321 Stainless Steel Plate/Sheet
321 stainless steel is an austenitic chromium-nickel steel alloyed with titanium, which enhances its resistance to intergranular corrosion. It maintains stability in chromium carbide forming conditions, such as prolonged exposure to high temperatures. Resistant to scaling and oxidation in environments up to 900°C, 321 stainless steel is ideal for applications with intermittent heating within the carbide precipitation range. Commonly used in aerospace components, exhaust manifolds, heat exchangers, and expansion joints, this grade is also favored in the chemical processing industry. 321’s resistance to high-temperature corrosion and its overall durability make it well-suited for challenging industrial uses.
Description
| Commodity | stainless steel plate sheet |
| Grade | 201,202,304,304L,309S,310S,316,316L,316Ti,317L,321,347H,409,409L,410,420,430,etc |
| Brand | TISCO ,BAO STEEL,POSCO,JISCO,LISCO |
| Certification | ISO,SGS,BV |
| Thickness | 0.3mm-60mm |
| Width | 1000mm,1219mm(4feet),1250mm,1500mm,1524mm(5feet), |
| 1800mm,2200mm or as your requirements | |
| Length | 2000mm,2440mm(8feet),2500mm,3000mm,3048mm(10feet) |
| 5800mm, 6000mm or as your requirements | |
| Surface | NO.1, NO.2D, NO.2B, BA,NO.3, NO.4,NO.240,NO.400,Hairline,NO.8,Brushed |
| Standard | ASTM,AISI,SUS,JIS,EN,DIN,BS,GB,etc |
| Delivery time | 5 days after confirming the order |
| MOQ | 1 ton |
| Package | Stainless steel sheet packing:Waterproof paper + Metal Pallet or as per customers’ requirements. The inner size of container is below: |
| 20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high) about 24-26CBM,23MTS | |
| 4 0ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high) about 54CBM,27MTS | |
| 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high) about 68CBM,27MTS | |
| Payment term | L/C at sight or 30% TT as deposit and the balance paid against copy of B/L |
| Applications | architectural decoration, luxury doors, elevators decorating, metal tank shell, ship building, decorated inside the train, as well as outdoor works, advertising nameplate, the ceiling and cabinets, aisle panels, screen, the tunnel project, hotels, guest houses, entertainment place, kitchen equipment, light industrial and others. |
| Advantages | Showing the splendor of your quality, wear-resistant as well, strong corrosion resistance and decorative effect, durable and beautiful in good taste. |
Heat Treatment
Annealing: Anneal at 1850 – 1950 °F (1010 – 1066 °C), then water quench or rapidly air cool.
The annealing temperature should be kept as low as possible, consistent with the desired properties, because Type 201 tends to scale more than Type 301
Table 1 – Typical Mechanical Properties*
| UTS ksi (MPa) | 0.2% YS ksi (MPa) | Elongation % in 2″ (50.8 mm) | Hardness Rockwell |
| 110 (758) | 52 (360) | 55 | B87 |
*Annealed condition
Table 2 – Impact Strength
| Izod V-Notch Rockwell ft·lbs. (J) | 120 (163) |
Table 3 – Cold-Worked Properties*
| Condition | UTS ksi (MPa) min. | 0.2% YS ksi (MPa) min. | Elongation % in 2″ (50.8 mm) | Elongation % in 2″ (50.8 mm) | |
| < 0.015 in. | ≥ 0.015 in. | ||||
| 1/4 hard | 125 (862) | 75 (517) | 25 | 25 | 30 |
| 1/2 hard | 150 (1034) | 110 (150) | 15 | 18 | 35 |
| 3/4 hard | 175 (1207) | 135 (931) | 10 | 12 | 37 |
| Full hard | 185 (1276) | 140 (965) | 8 | 9 | 41 |
*Standard practice is to produce to either minimum tensile strength, minimum yield strength or minimum hardness, but not to combinations of these properties.
