ASTM A959 304 (S30400) is an austenitic stainless steel. 304 stainless steel chemical elements are mainly combined by C Si Mn P S Ni Cr N. 304(S30400) square hollow section features: Best corrosion resistant, heat resistant, high strength at low temperature, mechanical properties, stamping bending, good insulation property and so on.
304 square/rectangular hollow section Application: 304 hollow section is widely used in fluid and gas transport, structure , boiler, heat exchanger, super heater and so on.
304 square/rectangular hollow section Specification
304 stainless steel square tube:
Size range from 20*20mm To 500*500mm
Thickness range from 0.22mm~3.00mm.
ASTM 304 Square/rectangle hollow section chemical composition:
C |
Si |
Mn |
P |
S |
Ni |
Cr |
|
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
8.00-11.00 |
18.00-20.00 |
ASTM 304 Square/rectangle hollow section Mechanical Properties
Mechanical Property |
Hardness Value |
||||||
|
Grade |
Rm |
Rp0.2 |
A |
Z |
HBW |
HRB |
HV |
|
304 |
≥520 |
≥205 |
≥40 |
≥60 |
≤187 |
≤90 |
≤200 |
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