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Grade Sn 20

India IS GradeSn20 Soft Solder - Specification and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GradeSn20 / Grade Sn 20
Category Grade Standard Region/Area Standard Content
Metals Grade Sn 20 IS 193 India Soft Solder - Specification

Chemical composition(mass fraction)(wt.%) of the Grade Sn 20

Element Min Max Similar

Mechanical Properties of steel grade Grade Sn 20

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)
977 (≥) 461 (≥) 34 24 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade Grade Sn 20

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
24 - -     0.21 -  
573 327 - 43.3 412   -  
584 - 14 14.2   341 243

Heat Treatment of steel grade Grade Sn 20

Heat treated : 1317°C - 1545°C

Technological Curves of steel grade Grade Sn 20

Cross Reference Table (Equivalent Grade) of Grade Sn 20

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