321 stainless steel can be readily formed and drawn, however, higher pressures are required and more springback is encountered than for carbon steel and ferritic stainless steels. Like other austenitic stainless steels,Type 321 work hardens quickly and may require annealing after severe forming.The presence of certain alloying elements can make Type 321 more difficult to form than other austenitic grades such as 301, 304 and 305.
321 Chemical compostion
| C(%) | Si(%) | Mn(%) | Cr(%) | P(%) | S(%) | Ti(%) | Ni(%) | Cu(%) |
| ≤0.08 | ≤1.00 | ≤2.00 | 17.0-19.0 | ≤0.035 | ≤0.03 | ≥5×C% | 9.0-12.0 | --- |
321 Mechanical property
| tensile strength | Yield Strength | Elongation | rate of reduction in area | (g/cm3)
Density |
| ≥520 | ≥205 | ≥40 | ≥50 | 7.98 |
Specification for 321 SS grade
| Technical | Thickness | Width | Finish | Status |
| Cold rolled | 0.40mm-3.00mm | Standard width in China:
1000mm 1219mm 1500mm
Special width:
Based on customer's require. | 2B /No.4 / HL
Mirro etc | sheet / plate / coil
strip |
| Hot rolled | 3.00mm-80.00mm
or more thick | Standard width in China:
1500mm 1800mm 2000mm
Special width:
Based on customer's require. | No.1 | plate / coil |
Application for 321 stainless steel
321 stainless steel is widely used in anti - grain boundary corrosion demanding chemical, coal, oil industry outdoor machine, heat resistant parts of building materials and heat treatment of difficult parts.Sunch as
oil burning gas pipeline
- engine exhaust pipe
- boiler shell, heat exchanger, furnace parts Noise components
- diesel engine
- boiler pressure vessel
- chemical transport vehicles
- expansion joint
- Spiral welded pipe and combustion furnace pipe and drying machine
Company Informations
Our company is a collection of stainless steel materials wholesale sales and processing as one of the medium-sized professional companies, to provide customers with sales, processing, logistics and distribution of one-stop services.
Our products mainly serve the nuclear power engineering, petrochemical, electric furnace, boiler, pressure vessel, electric heating equipment, textile, pharmaceutical, mechanical equipment, kitchen equipment, solar energy, paper equipment and many other industries, customers all over the country.
The main products of the company are: 321,310S, 309S, 316L,304,316Ti, 410S, 202,201,904L, 317L,904L, 2205,2304 and other dual-phase stainless steel, as well as 800H, 600H high nickel alloy, abundant supply. Standing stock of more than 3000 tons, and can be needed for special steel, special specifications of the customer agent order. In order to meet the diversified needs of customers and realize the one-stop service of customer procurement, our company can provide embossing, mirror polishing, plate polishing, grinding, leveling, slitting, cutting and other services according to customer requirements.
