NCF 625 TP Stainless Steels to G 4903 (2008)

NCF 625 TP - Specification & Application

  • G 4903 (2008) - Seamless nickel-chromium-iron alloy pipes

Seamless nickel-chromium-iron alloy pipes

Chemical composition(wt.%) of NCF 625 TP grade: to G 4903 (2008)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.10
Si - 0.50
Mn - 0.50
P - 0.015
S - 0.015
Cr 20.00 23.00
Ni 58.00 -
Cu - -
Al - 0.40
Ti - 0.40
Fe - 5.00
Nb+Ta 3.15 4.15
Mo 8.00 10.00

NCF 625 TP - Detail

Seamless nickel-chromium-iron alloy pipes

Mechanical properties of grade NCF 625 TP G 4903 (2008)

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)
884 (≥) 833 (≥) 23 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade NCF 625 TP G 4903 (2008)

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
461 (≥) 412 (≥) 22 44 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
838 672 514

Equivalent Products

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