| Items | America Standard | Steel grades | German Standard | Steel grade | England Standard | Steel grade | European standard | Steel grade |
| Seamless steel tubes for boiler, pressure vessel & heat exchanger | ASTM A53
ASTM A106 ASTM A333 ASTM A334 ASTM A179 ASTM A192 ASTM A210 |
SA106B
SA106C GR.A,B GR1, GR6 GR.A-1,GR.C |
DIN1629 DIN17175 |
St. 37.0
St. 44.0 St.52.0 St.35.8 St.45.8 17Mn4 15Mo3 13CrMo44
|
BS 3059-1 BS 3059-2 |
320 360 440 243 |
EN 10216-1
EN 10216-2 |
P 235TR 1
P235GH P265GH Etc. |
| Seamless steel tubes for structure & automobile parts, Cold drawn shaped steel tubes | ASTM A519
|
1020
1025 1026 1035 1045 4130 etc. |
DIN 2391 | St 35
St 45 St 52 |
BS 6323-4 | CFS
CFS-4 |
EN 10305
|
E215
E235 E335 |
Carbon Steel Seamless Pipe
