STSF304N Stainless Steels to D 4115 (2001)

STSF304N - Specification & Application

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

Stainless steel forgings for pressure vessels

Chemical composition(wt.%) of STSF304N grade: to D 4115 (2001)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 0.75
Mn - 2.00
P - 0.040
S - 0.030
Cr 18.00 20.00
Ni 8.00 11.00
Mo - -
N 0.10 0.16

STSF304N - Detail

Stainless steel forgings for pressure vessels

Mechanical properties of grade STSF304N 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)
882 (≥) 194 (≥) 41 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical properties of grade STSF304N 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
817 (≥) 643 (≥) 31 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 332
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
679 135 818

Equivalent Grade

Equivalent Products

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