Steel Grade :
10#,20#, 35#, 45#,Q345B,T35(E235), ST5(E255), ST52(E355), SAE1010,SAE1020, SAE1035,SAE1045,SAE4130, SAE4140, etc
Standards:
Chinese National Standard:GB/T3639
European Standards:EN10305-1,EN10305-4
American Standards:ASTM A519,AMS-T-6736,J524
Japanese Industrial Standard:JIS G3445,etc.
Size Range :
OD:4-80mm
WT:0.5-10mm
Steel Grade :
10#,20#,35#,45#,Q345B,ST35(E235),ST45(E255), ST52(E355),SAE1010,SAE1020,SAE1035,SAE1045, SAE4130, SAE4140,etc
Standards ():
Chinese National Standard:GB/T3639
European Standards:EN10305-1,EN10305-4
American Standards:ASTM A519,AMS-T-6736
Japanese Industrial Standard:JIS G3445,etc.
Size Range :
OD:12-80mm
WT:0.7-12mm