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India IS Sn69Zn30 Specification for antifriction bearing alloys and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Sn69Zn30 / Sn69Zn30
Category Grade Standard Region/Area Standard Content
Metals Sn69Zn30 IS 25 India Specification for antifriction bearing alloys

Chemical composition(mass fraction)(wt.%) of the Sn69Zn30

Element Min Max Similar

Mechanical Properties of steel grade Sn69Zn30

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)
651 (≥) 845 (≥) 34 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade Sn69Zn30

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
41 - -     0.41 -  
997 199 - 34.3 113   -  
721 - 42 14.2   322 334

Heat Treatment of steel grade Sn69Zn30

Heat treated : 1757°C - 1743°C

Technological Curves of steel grade Sn69Zn30

Cross Reference Table (Equivalent Grade) of Sn69Zn30

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