Introductions
321 stainless steel strip is a Ni-Cr-Mo austenitic stainless steel material, its performance is very similar to 304 stainless steel strip.
But due to the addition of alloy titanium content, it has better resistance to grain boundary corrosion and high temperature strength. It effectively controls the formation of chromium carbide.
321 austenitic stainless steel strip has good corrosion resistance in the atmosphere and is widely used in petrochemical, electric power, bridge and automobile industries.
However, the “stainlessness” of 321 stainless steel is not absolute. Due to the special service environment, 321 stainless steel will also corrode.
Factors such as medium concentration, PH value, and temperature will have a greater impact on the corrosion resistance of 321 stainless steel.
Chemical Composition
| Grade | Standard | C | Si | Mn | P | S | Cr | Ni | Mo |
| 321 | ASTM A240 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.00-19.00 | 9.00-12.00 | – |
Applications
321 stainless steel strip is applied to the field machines in the chemical, coal, and petroleum industries that require high resistance to grain boundary corrosion, heat-resistant parts for building materials and parts with difficult heat treatment.
1. Petroleum waste gas combustion pipeline
2. Engine exhaust pipe
3. Boiler shell, heat exchanger, heating furnace parts
4. Silencer parts for diesel engines
5. Boiler pressure vessel
6. Chemical transport truck
7. Expansion joint
8. Spiral welded pipes for furnace and dryers
Packaging
Standard export packaging:
Waterproof Paper Winding+PVC Film+Strap Banding+Wooden Pallet or Wooden Case;
Customized packaging as your request (Logo or other contents accepted to be printed on the packaging);
Other special packaging will be designed as customer’s request;
321 stainless steel | |||||||
Standard | Grade | Chemical Composition % | Temper | Yied strength/Mpa | Tensile strength/Mpa | Elongation % | Hardness |
GB | 1Cr18Ni9Ti | C≤0.08，Mn≤2.00，Si≤0.75，P≤0.045，S≤0.0.30，Cr 17.0~19.0,Ni 9.0~12.0，N≤0.10，Ti〔5x﹙C+N﹚〕~0.70 | hot /cold rolled | ≥205 | ≥518 | ≥40 | HV≤200 |
USA | 321 | ||||||
JIS | SUS321 | ||||||
German | 1.4541 | ||||||
1.Oil and gas burning pipeline
2.Engine exhaust pipe
3.Shell of the boiler, heat exchangers, heating furnace part
4.Silencer for diesel parts
5.Boilers and pressure vessels
6.Chemical transportation vehicle
7.Expansion joint
8.Furnace pipes and drying machines for spiral welded pipe
1) Fast delivery time.
2) High quality, quantity is with preferential treatment.
3) We can process to different finish you request.
4) Main distributor and gold supplier.
5) 800 Tons/Month, high production capability will short your wait time.
6) Tisco, Jisco, SPSS, QPSS, Baoxin, Baosteel and other famous brand.
7) Good quality with reasonable price.
8) Buyer's Specification Accepted.
9) Experienced R & D Department.
We are honored to offer you samples ( A4 paper size will be free)
Interleave paper, Waterproof paper,metal belt pack the sheet, wooden pallet.
Normally 7 day after deposit received or L/C at sight.
