SUS 309S Stainless Steels to G 4318 (2007)

SUS 309S - Specification & Application

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

Cold finished stainless steel bars

Chemical composition(wt.%) of SUS 309S grade: to G 4318 (2007)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 22.00 24.00
Ni 12.00 15.00
Mo - -
N - -

SUS 309S - Detail

Cold finished stainless steel bars

Mechanical properties of grade SUS 309S 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)
376 (≥) 188 (≥) 13 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical properties of grade SUS 309S 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
941 (≥) 476 (≥) 22 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 314
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
464 581 886

Equivalent Products

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