SUS 431 Stainless Steels to G 4311 (2011)

SUS 431 - Specification & Application

  • G 4311 (2011) - Heat-resisting steel bars and wire rods

Heat-resisting steel bars and wire rods

Chemical composition(wt.%) of SUS 431 grade: to G 4311 (2011)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.20
Si - 1.00
Mn - 1.00
P - 0.04
S - 0.03
Cr 15.00 17.00
Ni 1.25 2.50
Mo - -
N - -

SUS 431 - Detail

Heat-resisting steel bars and wire rods

Mechanical properties of grade SUS 431 G 4311 (2011)

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)
391 (≥) 266 (≥) 33 33 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical properties of grade SUS 431 G 4311 (2011)

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
934 (≥) 563 (≥) 34 44 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
557 993 725

Equivalent Products

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