SA-312 Grade TP XM-29 Stainless Steels to SA-312/SA-312M

SA-312 Grade TP XM-29 - Specification & Application

  • SA-312/SA-312M - Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Chemical composition(wt.%) of SA-312 Grade TP XM-29 grade: to SA-312/SA-312M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn 11.5 14.5
P - 0.06
S - 0.03
Cr 17.0 19.0
Ni 2.25 3.75
N 0.20 0.40

SA-312 Grade TP XM-29 - Detail

SA-312 Grade TP XM-29

Mechanical properties of grade SA-312 Grade TP XM-29 SA-312/SA-312M

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)
127 (≥) 536 (≥) 13 42 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical properties of grade SA-312 Grade TP XM-29 SA-312/SA-312M

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
176 (≥) 169 (≥) 12 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 421
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
856 195 925

Equivalent Products

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