... ,4137,8620,8615 Forged/ hot rolled alloy steel bar 41401)Standard: ASTM,JIS,DIN,BS,AISI2)Grade: 4140,5140,5145,5150 ... ,8650,25CrMo4,4340,sk53)Sizes: OD:12-800 Length: as request.4)Surface: black/peeled/grinded, UT tested5)Delivery condition:EAF + LF ...