STSF347H Stainless Steels to D 4115 (2001)

STSF347H - Specification & Application

  • D 4115 (2001) - Stainless steel forgings for pressure vessels

Stainless steel forgings for pressure vessels

Chemical composition(wt.%) of STSF347H grade: to D 4115 (2001)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.10
Si - 1.00
Mn - 2.00
P - 0.040
S - 0.030
Cr 17.00 20.00
Ni 9.00 13.00
Mo - -
Nb 8×C% 1.00

STSF347H - Detail

Stainless steel forgings for pressure vessels

Mechanical properties of grade STSF347H D 4115 (2001)

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)
432 (≥) 563 (≥) 22 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical properties of grade STSF347H D 4115 (2001)

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
841 (≥) 188 (≥) 44 22 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
498 184 588

Equivalent Grade

Equivalent Products

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