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Malleable Iron Castings

(IS : 2108-1962, IS : 2640-1964, IS : 2107-1962)
Code for Designation Grade Tensile strength, Min, kgf/mm American Brown and Sharpe's Gauge
(AWG)		 Elongation percent Min. Brinell Hardness HB Max. Phosphorous content percent
Max.
BM35 A 35 21 14 149 0.12
BM30 C 30 - 6 163 0.20
PM70 A 70 55 2 241-285 0.12
PM45 E 45 28 7 149-201 0.12
WM42 A 42 26 4 217 0.15
WM35 B 35 - 3 217 0.15

Code for Designation Typical Application
BM35
BM30
PM70		 Thin walled castings, mass production parts, wheels, keys.
PM45
WM42
WM35		 Parts for locks and sweing machine parts.