50CrMo4 Honed Pipe

Standard:DIN172000 Materials: 50CrMo4 Technical: cold-draw seamless Delivery Condition:BK.BKW,Website:http://www.worldironsteel.com,BK+S,GBK,NBK Straightness: 0.5mm/1m max for tubes below 3m,0.8mm/1m max for tubes between 3 to 6m, 1.2mm/1m for tubes above 6m Technology:honed & SRB(Skived and Roller Burnished). Application: used in the hydraulic cylinder of the Heavy Machinery, Cranes, Excavator and Forklifts.etc