SUH309 Stainless Steels

SUH309 - Specification & Application

CNS standard heat resistant steel plate of the steel grade and chemical composition

Chemical composition(wt.%) of SUH309 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.20
Si - 1.00
Mn - 2.00
P - 0.040
S - 0.030
Cr 22.00 24.00
Ni 12.00 15.00
Mo - -

SUH309 - Detail

CNS standard heat resistant steel plate of the steel grade and chemical composition

Mechanical properties of grade SUH309

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)
179 (≥) 674 (≥) 42 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical properties of grade SUH309

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
377 (≥) 457 (≥) 22 32 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 213
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
989 919 771

Equivalent Grade

Equivalent Products

We can customize the production of SUH309 grade, contact us for the best solution.
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