SUH 309 Stainless Steels to G 4312 (2011)

SUH 309 - Specification & Application

  • G 4312 (2011) - Heat-resisting steel plate, sheet and strip

Heat-resisting steel plate, sheet and strip

Chemical composition(wt.%) of SUH 309 grade: to G 4312 (2011)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35 0.45
Si 1.80 2.50
Mn - 0.60
P - 0.03
S - 0.03
Cr 10.00 12.00
Ni - 0.60
Mo 0.70 1.30

SUH 309 - Detail

Heat-resisting steel plate, sheet and strip

Mechanical properties of grade SUH 309 G 4312 (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)
828 (≥) 451 (≥) 14 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical properties of grade SUH 309 G 4312 (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
775 (≥) 776 (≥) 11 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
555 512 339

Equivalent Products

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