Main grades:10、20、35、45、40Mnz、20Cr、40Cr、15CrMo、20CrMo、 30CrMo、42CrMo、38CrMoAl、20CrMnTi、30CrMnSi、40CrNiMo。
| GB/T 8162 |
Seamless steel tubes for structural |
| GB/T 8163 |
Seamless steel tubes for liquid delivery |
| YB/T 5052 |
Seamless steel tubes for diamond-impregnated |
| ASTM A 179 |
Seamless cold drawn steel tube for heat exchanger and condenser |
| ASTM A 519 |
Seamless carbon and alloy steel mechanical tube |
| ASTM A 53 |
Seamless(welded)steel tube and hot zinc coated tube |
| ASTM A 106 |
Seamless carbon steel tube used in high-temperature condition |
| ASTM A 335 |
Ferritic alloy-steel tube used in high-temperature condition |
| ASTM A 333 |
Seamless and welded steel tube usedc in low-temperature
condition |
| JIS G 3444 |
carbon steel tube for commom structure |
| JIS G 3445 |
carbon steel tube for commom structure |
| JIS G 3441 |
alloy steel tube for mechanical |
| JIS G 3458 |
alloy steel tube for pipe |
| JIS G 3452 |
carbon steel tube for pipe |