Comparison to International Standards: DIN : BS 1400 - 73 LPB1 BS : 1705 - 73 GCuSn7ZnPb ( RG-7) Mechanical Properties: Yield strength 13 - 20 kg/ mm2 Tensile strength 31 - 38 kg/ mm2 Elongation 13 - 30 % Hardness ( HB) 85 - 110 Applications: Heavy load and high speed bearings.