SUS 440C Stainless Steels to G 4318 (2007)

SUS 440C - Specification & Application

  • G 4318 (2007) - Cold finished stainless steel bars

Cold finished stainless steel bars

Chemical composition(wt.%) of SUS 440C grade: to G 4318 (2007)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.95 1.20
Si - 1.00
Mn - 1.00
P - 0.04
S - 0.03
Cr 16.00 18.00
Ni - 0.60
Mo - 0.75
N - -

SUS 440C - Detail

Cold finished stainless steel bars

Mechanical properties of grade SUS 440C G 4318 (2007)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
185 (≥) 682 (≥) 24 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical properties of grade SUS 440C G 4318 (2007)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
238 (≥) 981 (≥) 31 24 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 423
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
535 375 379

Equivalent Products

We can customize the production of SUS 440C grade, contact us for the best solution.
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