SA-249 TP310HCb Stainless Steels to SA-249/SA-249M

SA-249 TP310HCb - Specification & Application

  • SA-249/SA-249M - Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(wt.%) of SA-249 TP310HCb grade: to SA-249/SA-249M

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.10
Si - 0.75
Mn - 2.00
P - 0.045
S - 0.030
Cr 24.00 26.00
Ni 19.00 22.00
Nb+Ta - 1.10
Cu - 0.75

SA-249 TP310HCb - Detail

Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Mechanical properties of grade SA-249 TP310HCb SA-249/SA-249M

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)
998 (≥) 522 (≥) 42 13 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical properties of grade SA-249 TP310HCb SA-249/SA-249M

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
358 (≥) 818 (≥) 41 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
382 882 445

Equivalent Products

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