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CuBe2 FB640

Germany DIN CuBe2FB640 Wrought copper alloy strips for springs; technical conditions of delivery and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CuBe2FB640 / CuBe2 FB640
Category Grade Standard Region/Area Standard Content
Metals CuBe2 FB640 DIN 1780 Germany Wrought copper alloy strips for springs; technical conditions of delivery

Chemical composition(mass fraction)(wt.%) of the CuBe2 FB640

Element Min Max Similar

Mechanical Properties of steel grade CuBe2 FB640

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
929 (≥) 422 (≥) 23 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade CuBe2 FB640

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
14 - -     0.34 -  
287 531 - 23.3 442   -  
541 - 34 33.2   112 423

Heat Treatment of steel grade CuBe2 FB640

Heat treated : 1944°C - 1824°C

Technological Curves of steel grade CuBe2 FB640

Cross Reference Table (Equivalent Grade) of CuBe2 FB640

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