| Standard |
GB |
| Grade |
Cr-Mo alloy |
product Chinese standardChinese Steel gradeSome Corresponding foreign steel gradeOther StandardSeamless steel tube for structure use GB/T8162-99 GB/T17396 10#,20#,35# ,45# ; Q345,Q345B,Q345C ,Q345D,Q345E 20Mn 2 ,30Mn2 ,40Mn245Mn2 20CrMo,30CrMo,35CrMo ,42CrMo ;27SiMn20Cr40Cr38CrMoA150CrV30CrMnSi S10C,20C,20CK,35C,45C;of Janpan1010,1020,1035,1037,1045,1046 of USmaterial CK10(1.1121.)C35(1.0501)CK35(1.1181)CM35(1.1180)C35(1.0503)CK35(1.1191)CM35(1.1201),st33,st37,st44,st45.8,st55,st52of Germany040,050,080,060,of UKASTMA500-98ASTMA501-98ASTMA519-98DIN17121-84JIS G3441-1994JIS G3444-1994EN10210-1Specification:57-60.3mm*2-2.5-3.0-3.5-4.0-5.0-6.0-7.5-9.0-11.0-12mm; 60.3-70.3mm*3.5-4.0-5.0-6.0-7.5-9.0-11.0-12mm73.0-88.9mm*4.0-5.0-6.0-7.5-9.0-11.0-12mm88.9*108.0mm*4.0-5.0-6.0-7.5-9.0-11.0-12mm108.0-120.0mm*4.0-5.0-6.0-7.5-9.0-11.0-12mm