Special Steel Products

List of Properties

1. Chemical Composition

Category Stainless steel
Code SUS430 SUS304 SUS301 NMA
Chemical composition (wt%) C ≦0.12 ≦0.08 ≦0.15 ≦0.05
Si ≦0.75 ≦1.00 ≦1.00 ≦1.00
Mn ≦1.00 ≦2.00 ≦2.00 ≦2.00
P ≦0.040 ≦0.045 ≦0.045 ≦0.030
S ≦0.030 ≦0.030 ≦0.030 ≦0.030
Ni - 8.0-10.5 6.0-8.0 13.0-15.0
Cr 16.0-18.0 18.0-20.0 16.0-18.0 15.5-16.5
Co - - - -
Fe bal bal bal bal
Cu - - - -
Zn - - - -
Sn - - - -

2. Mechanical and Physical Properties

Category Stainless steel
Code SUS430 SUS304 SUS301 NMA
Mechanical properties
(temper H standard)
TS
(N/mm2)
≧800 ≧1130 ≧1320 ≧900
EL (%) <3 <3 <5 ≦10
Hv ≧240 ≧370 430-490 ≧320
Thermal expansion coefficient
(X10-7/℃)
30-100℃ 106 172 172 172
30-300℃ 117 180 180 180
30-400℃ 118 184 184 184
30-450℃ 121 187 187 187
Specific resistance n·Ω·m 600 720 720 720
Magnetic permeability (µ) Annealed material ≧20 1.04 1.05 1.002
Temper H equivalent ≧20 1.2 >2 1.005
Softening due to annealing 700 700 700 700
Specific gravity g/cm3 7.78 8.04 8.04 8.04
  • The above data is for reference only. The actual material may vary due to manufacturing conditions and other factors.
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