NCF 825 Stainless Steels to G 4902 (1991)

NCF 825 - Specification & Application

  • G 4902 (1991) - Corrosion-resisting and heat-resisting superalloy plates and sheets

Corrosion-resisting and heat-resisting superalloy plates and sheets

Chemical composition(wt.%) of NCF 825 grade: to G 4902 (1991)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.05
Si - 1.00
Mn - 1.00
P - 0.03
S - 0.015
Cr 19.50 23.00
Ni 38.00 46.00
Cu 1.50 3.00
Al - 0.20
Ti 0.60 1.20
Fe remaining -
Mo 2.50 3.50

NCF 825 - Detail

Corrosion-resisting and heat-resisting superalloy plates and sheets

Mechanical properties of grade NCF 825 G 4902 (1991)

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)
318 (≥) 752 (≥) 13 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical properties of grade NCF 825 G 4902 (1991)

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
862 (≥) 453 (≥) 11 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
524 124 974

Equivalent Products

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