Iron
Fe
Bal.
Nickel
Ni
9.0~12.0%
Chromium
Cr
17.0~19.0%
Manganese
Mn
≤2.0%
Silicon
Si
≤1.0%
Titanium
Ti
0.5~0.7%
Carbon
C
≤0.08%
Phosphorus
P
≤0.035%
Sulphur
S
≤0.03%
AISI 321 stainless steel is a Ni-Cr-Ti austenitic stainless steel. Its performance is very similar to that of 304. However, due to the addition of metallic titanium, it has better resistance to intergranular corrosion and high temperature strength, and has abrasion resistance. ,high temperature resistance, creep resistance, etc. It is mostly used in the manufacture of linings and pipelines for wear-resistant acid containers and wear-resistant equipment.
AISI 321 Mechanical properties
| Yield Strength |
Tensile strength |
Elongation |
Brinell hardness |
rate of reduction in area |
| Mpa，≥ |
Mpa，≥ |
%，≥ |
HB |
ψ (%) |
| 205 |
520 |
40 |
≤187 |
≥50 |
Product Supply Specifications AISI321 sheet specification: 0.5-60MM
AISI321 bar Φ8-Φ200MM
Customized supply for customers:
AISI321 rolled bar ≤Φ45MM
AISI321 forging bar Φ45MM-Φ200MM
AISI321 stainless steel tube Φ830mm-2500mm, wall thickness 0.2-80mm
