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America SAE 3A Solders and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 3A / 3A
Category Grade Standard Region/Area Standard Content
Metals 3A SAE J 473A America Solders

Chemical composition(mass fraction)(wt.%) of the 3A

Element Min Max Similar
Total Others - 0.3000 -
Pb - - -
Bi - 0.2500 -
Fe - 0.0200 -
Sb - 0.5000 -
Sn 29.0000 30.0000 -
Zn - 0.0050 -
Al - 0.0050 -
Cu - 0.0800 -

Mechanical Properties of steel grade 3A

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)
956 (≥) 378 (≥) 41 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade 3A

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
42 - -     0.13 -  
188 915 - 42.3 241   -  
922 - 44 32.2   221 212

Heat Treatment of steel grade 3A

Heat treated : 1396°C - 1886°C

Technological Curves of steel grade 3A

Cross Reference Table (Equivalent Grade) of 3A

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