B 402 C72200 Stainless Steels to B 402M

B 402 C72200 - Specification & Application

  • B 402M - Copper-nickel alloy plate and sheet for pressure vessels

Copper-nickel alloy plate and sheet for pressure vessels

Chemical composition(wt.%) of B 402 C72200 grade: to B 402M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.01
Si - 0.05
Mn - 1.50
P - 0.04
S - 0.01
Ni - remaining
Cr 0.50 1.50
Al 0.10 0.50
Cu - 0.50
Ti - -
Fe 1.00 6.00
Mo 26.00 30.00
Co - 2.50

B 402 C72200 - Detail

Copper-nickel alloy plate and sheet for pressure vessels

Mechanical properties of grade B 402 C72200 B 402M

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)
635 (≥) 935 (≥) 41 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical properties of grade B 402 C72200 B 402M

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
422 (≥) 185 (≥) 22 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 212
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
228 617 632

Equivalent Products

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