STSF304LN Stainless Steels to D 4115 (2001)

STSF304LN - Specification & Application

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

Stainless steel forgings for pressure vessels

Chemical composition(wt.%) of STSF304LN grade: to D 4115 (2001)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
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

STSF304LN - Detail

Stainless steel forgings for pressure vessels

Mechanical properties of grade STSF304LN 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)
567 (≥) 367 (≥) 14 43 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical properties of grade STSF304LN 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
558 (≥) 488 (≥) 14 23 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 342
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
838 147 237

Equivalent Grade

Equivalent Products

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