25CD4S Air 9160/C Aviation and Aero Steel to AIR 9160 C

25CD4S Air 9160/C - Specification & Application

  • AIR 9160 C - wrought steels used in aeronautical constructions

wrought steels used in aeronautical constructions

Chemical composition(wt.%) of 25CD4S Air 9160/C grade: to AIR 9160 C

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.22 0.29
Si 0.10 0.25
Mn 0.50 0.80
P - 0.020
S - 0.015
Cr 0.90 1.20
Mo 0.15 0.25
Ni - 0.30

25CD4S Air 9160/C - Detail

25CD4S Air 9160C wrought steels used in aeronautical constructions

Mechanical properties of grade 25CD4S Air 9160/C AIR 9160 C

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)
363 (≥) 859 (≥) 41 11 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical properties of grade 25CD4S Air 9160/C AIR 9160 C

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
392 (≥) 364 (≥) 34 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 141
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
716 675 429

Equivalent Grade

Equivalent Products

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