| Types and Applications of Steel Tubes |
| Name of Product |
Specification |
Correspondant Foreign Specification |
Application |
Seamed Low Pressure
Pre-Galvanized Steel Tube |
CNS2056 G3030 |
JIS G3452, BS-1387 |
Tap Water, Gas, Liquid Pipeline |
Welded Low Pressure
Pre-Galvanized Steel Tube |
CNS2056 G3030 |
JIS G3452, BS-1387 |
General Mechanic and Structural Tubes |
Pre-Galvanized Steel Tube
for Bunch-Stranded Copper |
CNS2606 G4060 |
JIS C8305, ANSI C80.1 |
Electric Piping and Power Cord Protection |
Carbon Steel Tubes for
General Structural Purposes |
CNS4435 G3102 |
JIS G3444 |
Civil Engineering, Construction, Iron Towers, Trestlework, Piles, etc. |
| Carbon Steel Tubes for Machine Structural Purposes |
CNS4437 G3403 |
JIS G3445 |
Machines, Planes, Cars, Bicycles, Furniture, Appliances, etc |
| Carbon Steel Tubes for Pressure Piping |
CNS4626 G3111 |
JIS G3454, API5L, ASTM A-53 |
Pressure Piping below 350 Degree |
| Rectangular Carbon Steel Tubes for General Structural Purposes |
CNS7141 G3134 |
JIS G3466, ASTM A500 |
Civil Engineering, Construction and Other Structural Purposes |
| Carbon Steel Tubes for Boiler and Heat Exchanger |
CNS7379 G3140 |
JIS G3461, ASTM A214 |
Boilers and Heat Exchangers |
| Steel Pipe Pile |
CNS7934 A2114 |
JIS A5525, ASTM A252 |
Steel Pipe Pile for Infrastructure of Civil Engineering and Construction |
| Carbon Steel Tubes for Piping |
CNS6445 G3127 |
JIS G3452 |
Fire Control and Air Conditioning Piping |
