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Stainless steel sheet 321 DIN:1.4541/SUS321/STS321
About 321 stainless steel
321 stainless steel is Ni-Cr-Ti-type austenitic stainless steel, its performance is very similar to the 304, but due to the addition of the metal titanium, it has a better intergranular corrosion resistance and high temperature strength. The addition of titanium, making it effective control of the formation of chromium carbide.
Excellent high-temperature stress of 321 stainless steel with a breaking (Stress Rupture) properties and high temperature creep resistance (Creep Resistance) stress mechanical properties are superior to 304 stainless steel.
Chemical composition for 321 stainless steel
Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Ti (%) | Cu (%) |
321 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 17.0-19.0 | 9.0-12.0 | ≥5×C% | ---- |
Mechanical property for 321 stainless steel
tensile strength Mpa | Yield Strength Mpa | Elongation (%) | rate of reduction in area (%) | Density (g/cm3) |
≥520 | ≥205 | ≥40 | ≥50 | 7.93 |
Specifications for 321 stainless steel
Technical | Thickness | Width | Finish | Origin |
Cold rolled | 0.4mm-3.0mm | Standard width in China:1000mm 1219mm 1500mm Special width:can be ordered | 2B / No.4 / HL / BA / Mirror etc | TISCO / ZPSS / JISCO etc |
Hot rolled | 3.0mm-80.0mm | Standard width in China:1500mm 180mm 2000mm Special width:can be ordered | No.1 | TISCO / ZPSS / JISCO etc |
Applications for 321 stainless steel
321 stainless steel is a high grade stainless steel in the 300 series, because the nickel content is relatively high. The utility model is applied to the outdoor machine of chemical, coal and petroleum industry with high grain boundary corrosion resistance, heat resistant parts of building materials and difficult parts of heat treatment, such as:
1) oil waste gas pipeline
2) engine exhaust pipe
3) boiler shell, heat exchanger, heating furnace parts
4) Noise components of 4 diesel engine
5) boiler pressure vessel
6) chemical transport vehicles
7) expansion joint
8) Spiral welded pipe for furnace pipe and dryer
Standards for 321 stainless steel
GB/T 1220-2007: 06Cr19Ni11Ti (Standards from China)
ASTM: 321 (Standards from USA)
DIN: 1.4541 (Standards from Europe)
JIS: SUS321 (Standards from Japan)
KS: STS321 (Standards from Korea)
The weight calculation method for 321 stainless steel
Weight(KG/PC)=thickness(mm) x width(Meter) x length(Meter) x 7.93
Small knowledge for 321 stainless steel
1)One of the Ti 321 stainless steel as a stabilizing element exists, but it is hot strong steel at high temperature is much better than 316L.321 stainless steel organic acid and inorganic acid in different concentration and different temperature, especially has good resistance to abrasion performance in oxidizing medium, used in the manufacture of wear and wear acid container equipment lining, pipeline.
2)321 stainless steel is Ni-Cr-Ti type austenitic stainless steel, its performance is very similar to the 304, but because of the addition of titanium, it has better resistance to grain boundary corrosion and high temperature strength. Due to the addition of titanium, it can effectively control the formation of chromium carbide.
3)321 stainless steel has excellent high temperature stress rupture (Stress Rupture) performance and high temperature creep resistance (Creep Resistance) stress mechanical properties are better than the 304 stainless steel.
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