4140 TYPE ALLOY STEEL BAR OPEN DIE FORGINGS4140 TYPE ALLOY STEEL BAR CLOSED DIE FORGINGS4140 TYPE ALLOY STEEL BAR STOCK HOT ROLLED AND COLD FINISHEDChemical Composition
4140 TYPE ALLOY STEEL BAR OPEN DIE FORGINGS4140 TYPE ALLOY STEEL BAR CLOSED DIE FORGINGS4140 TYPE ALLOY STEEL BAR STOCK HOT ROLLED AND COLD FINISHEDChemical Composition<br>