A 312 TPXM-29 Stainless Steels to A 312/A 312M (2012)

A 312 TPXM-29 - Specification & Application

  • A 312/A 312M (2012) - Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

Chemical composition(wt.%) of A 312 TPXM-29 grade: to A 312/A 312M (2012)

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

A 312 TPXM-29 - Detail

A 312 TPXM-29

Mechanical properties of grade A 312 TPXM-29 A 312/A 312M (2012)

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)
663 (≥) 145 (≥) 33 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical properties of grade A 312 TPXM-29 A 312/A 312M (2012)

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
217 (≥) 695 (≥) 24 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 244
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
597 876 773

Equivalent Products

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