An 11-14% Hadfield spec manganese steel. Excellent for extreme applications with a received hardness of 180-220 BHN that work hardens to 500 -650 BHN under heavy impact or high pressure by hard materials. Used as liners, bolster cups, gibes, pedestal liners, coupler wear and impact plates. Non-magnetic and resistant to galling when used as non-lubricated bushings.
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