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25B Solder

Global 企业标准 25BSolder and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25BSolder / 25B Solder
Category Grade Standard Region/Area Standard Content
Metals 25B Solder -- Global

Chemical composition(mass fraction)(wt.%) of the 25B Solder

Element Min Max Similar
Zn - 0.0050 -
Sn - 25.0000 -
Sb 0.2000 0.5000 -
Pb 75.0000 - -
Fe - 0.0200 -
Cu - 0.0800 -
Bi - 0.2500 -
As - 0.0200 -
Al - 0.0050 -

Mechanical Properties of steel grade 25B Solder

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)
954 (≥) 858 (≥) 43 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade 25B Solder

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
13 - -     0.33 -  
397 899 - 21.3 341   -  
475 - 43 43.2   112 141

Heat Treatment of steel grade 25B Solder

Heat treated : 1285°C - 1547°C

Technological Curves of steel grade 25B Solder

Cross Reference Table (Equivalent Grade) of 25B Solder

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