321 Stainless Steel
About 321 Stainless Steel
321 is an austenitic solution treated stainless steel material which is known for its excellent resistance to corrosion and oxidation, particularly at elevated temperatures.
Common applications can include but not limited to: Aerospace, heat exchangers and pressure vessels, welding applications and marine environments.
321 Stainless Steel Grades & Equivalents
- ASTM A193 B8T CLASS 1
- ASTM A320 B8T CLASS 1
- ASTM A276 S32100
- ASTM A479 S32100
- BS4882 B8T
- 1.4541
- BS970 321S31
Typical chemical analysis
C
0.080
P
0.045
Ni
9.00-12.00
Si
1.00
S
0.030
N
0.100
Mn
2.00
Cr
17.0-19.0
Ti
5x(C+N) to 0.70
Typical mechanical properties
Tensile Strength
515 N/mm2 min
0.2% Proof Stress
205 N/mm2 min
Elongation
30%
Impacts
Nil
Hardness
223 HBw
Reduction of Area
50%
Stress Rupture
Nil
Other Remarks
Mechanicals may vary slightly depending on specification (above taken from ASTM A193)
Download metal data sheets
321 Stainless Steel Material Data Sheet
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