CARPENTER 20 Cb 3 Stainless Steels to SAE J 470 (1976)

CARPENTER 20 Cb 3 - Specification & Application

  • SAE J 470 (1976) - Wrought Nickel and Nickel-Related Alloys

Wrought Nickel and Nickel-Related Alloys

Chemical composition(wt.%) of CARPENTER 20 Cb 3 grade: to SAE J 470 (1976)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.07
Si - 1.00
Mn - 2.00
P - -
S - -
Ni 32.00 38.00
Cr 19.00 21.00
Al - -
Cu 3.00 4.00
Ti - -
Fe - remaining
Mo 2.00 3.00
Co - -

CARPENTER 20 Cb 3 - Detail

Wrought Nickel and Nickel-Related Alloys

Mechanical properties of grade CARPENTER 20 Cb 3 SAE J 470 (1976)

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)
358 (≥) 234 (≥) 43 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical properties of grade CARPENTER 20 Cb 3 SAE J 470 (1976)

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
532 (≥) 484 (≥) 23 43 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
784 172 749
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