SA-479 Type XM-17 Stainless Steels to SA-479/SA-479M

SA-479 Type XM-17 - Specification & Application

  • SA-479/SA-479M - Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Chemical composition(wt.%) of SA-479 Type XM-17 grade: to SA-479/SA-479M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 0.75
Mn 7.50 9.00
P - 0.045
S - 0.03
Cr 17.5 22.0
Ni 5.00 7.00
Mo 2.00 3.00
N 0.25 0.50

SA-479 Type XM-17 - Detail

SA-479 Type XM-17

Mechanical properties of grade SA-479 Type XM-17 SA-479/SA-479M

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)
528 (≥) 743 (≥) 11 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical properties of grade SA-479 Type XM-17 SA-479/SA-479M

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
936 (≥) 894 (≥) 43 11 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 113
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
574 816 417
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