321 Stainless Steel
Introduction
Overview of 321 Stainless Steel
321 stainless steel is a Ni-Cr-Mo austenitic stainless steel material, its performance is very similar to grade 304 stainless steel material.
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 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.
Futures of 321 Stainless Steel
- Excellent formability: it can be easily cold formed by various methods such as bending or coining without any detrimental effect on its corrosion resistance
- Good machinability: it can be machined using conventional techniques
- Good weldability: it can be welded using conventional techniques
321 Stainless Steel Applications
- Petroleum waste gas combustion pipeline
- Engine exhaust pipe
- Boiler shell, heat exchanger, heating furnace parts
- Silencer parts for diesel engines
- Boiler pressure vessel
- Chemical transport truck
- Expansion joint
- Spiral welded pipes for furnace and dryers
321 Stainless Steel Tags
- Grade 321
- Type 321
- Inox 321
- AISI 321
- SUS 321
- 1.4541
- UNS S32100
Quality Products
Technical Data
| 321 Stainless Steel Standards Comparison Table | ||||||||
| STS | USA | UNS | CHINA | EURONORM | RUSSIA | SWEDISH | JAPANESE | |
| GRADE | AISI/ASTM | NO | GB | NO | NAME | GOST | SS | JIS |
| 321 | 321 | S32100 | 0Cr18Ni11Ti | 1.4541 | X 6 CrNiTi 18 10 | 12KH18N10T | 2337 | SUS 321 |
| 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 | – |
| Grade | EN Grade | Yield Strength Rp0.2(N/mm²) | Tensile Strength Rm(N/mm²) | Hardness | Vickers Hardness(HV) | Elongation A50% |
| 321 | 1.4541 | ≥205 | ≥520 | Annealed | ≤200 | ≥40 |
Related Resources
What Is The Difference Between 321 And 347 Stainless Steel Strip?
There are a lot of stainless steel strips in the world. Many which have trade names as well as generic grades assigned to them. This makes it difficult to know what strip you are buying when you place an order. This can cause confusion but fear not, we are here to solve that problem. In this article, we will look at the difference between 321 and 347 stainless steel strip. Let’s keep reading.
