SUS 347HFB Stainless Steels to G 4319 (1991)

SUS 347HFB - Specification & Application

  • G 4319 (1991) - Stainless steel blooms and billets for forgings

Stainless steel blooms and billets for forgings

Chemical composition(wt.%) of SUS 347HFB grade: to G 4319 (1991)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.10
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 17.00 20.00
Ni 9.00 13.00
Mo - -
Nb 8×C% 1.00

SUS 347HFB - Detail

Stainless steel blooms and billets for forgings

Mechanical properties of grade SUS 347HFB G 4319 (1991)

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)
472 (≥) 342 (≥) 42 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical properties of grade SUS 347HFB G 4319 (1991)

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
273 (≥) 767 (≥) 24 14 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
924 243 163

Equivalent Grade

Equivalent Products

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