SUS 631 Stainless Steels to G 4311 (2011)

SUS 631 - Specification & Application

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

Heat-resisting steel bars and wire rods

Chemical composition(wt.%) of SUS 631 grade: to G 4311 (2011)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.09
Si - 1.00
Mn - 1.00
P - 0.04
S - 0.03
Cr 16.00 18.00
Ni 6.50 7.75
Mo - -
N - -
Al 0.75 1.50

SUS 631 - Detail

Heat-resisting steel bars and wire rods

Mechanical properties of grade SUS 631 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)
935 (≥) 465 (≥) 44 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical properties of grade SUS 631 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
926 (≥) 691 (≥) 42 24 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
222 811 367

Equivalent Products

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