315 Stainless Steels

315 - Specification & Application

Austenitic Chromium Nickel Heat Resisting Steel

Chemical composition(wt.%) of 315 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 17.0 19.0
Ni 7.00 9.50
Mo 1.00 1.50
Cu 1.00 1.50

315 - Detail

Stainless and heat resisting steels

Austenitic Chromium Nickel Heat Resisting Steel

315

Mechanical properties of grade 315

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)
688 (≥) 243 (≥) 44 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical properties of grade 315

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
952 (≥) 528 (≥) 12 14 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
376 562 867

Equivalent Products

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