This standard covers the requirements of the following five classes of
bronze ingots and sand castings which are mostly used in Indian Railways:
a) Phosphor bronze Class I
b) Gunmetal Class II
c) Leaded bronze ( 78-7-15 ) Class III
d) Leaded bronze ( 83-7-10) Class IV
e) Leaded gunmetal (85-5-5-5) Class V
IS 1458-1965 history
1966IS 1458-1965 Specification for Railway Bronze Ingots and Castings