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BFe30-0.7

China GB BFe30-0.7 热交换器用铜合金无缝管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: BFe30-0.7 / BFe30-0.7
Category Grade Standard Region/Area Standard Content
Metals BFe30-0.7 GB/T 8890 China 热交换器用铜合金无缝管

Chemical composition(mass fraction)(wt.%) of the BFe30-0.7

Element Min Max Similar
Total others - 2.5000 -
Zn - 1.0000 -
Pb - 0.0500 -
Mn - 1.0000 -
Fe 0.4000 1.0000 -
Ni+Co 29.0000 33.0000 -
Cu - - -

Mechanical Properties of steel grade BFe30-0.7

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)
567 (≥) 463 (≥) 34 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade BFe30-0.7

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
33 - -     0.11 -  
875 138 - 13.3 111   -  
633 - 33 33.2   231 211

Heat Treatment of steel grade BFe30-0.7

Heat treated : 1211°C - 1578°C

Technological Curves of steel grade BFe30-0.7

Cross Reference Table (Equivalent Grade) of BFe30-0.7

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