| Standard Specification | Grade | Description | |
|---|---|---|---|
| ASTM | A 53 | A,B | Pipe for General Purposes |
| A178 | A,C,D | E.R.W. Steel Boiler and Superheater Tubes | |
| A214 | - | E.R.W. Heat-Exchanger & Condenser Tubes | |
| A252 | 1,2,3 | Steel Pipe Piles | |
| A500 | A,B,C,D | Steel Tubes for Structural Purposes | |
| A589 | Type Ⅰ,Ⅱ,Ⅲ,Ⅳ | Steel Water-Well Pipe | |
| A795 | A, B | Steel pipe for fire protection use | |
| API | 5L | A | Line pipe |
| B | |||
| X42 | |||
| X46 | |||
| X52 | |||
| X56 | |||
| X60 | |||
| X65 | |||
| X70 | |||
| X80 | |||
| 5CT | H40, J55, K55, N80(1 & Q), R95, L80 Type 1, P110 |
Casing and Tubing | |
| CSA | Z245.1 | CAT. 1.2.3 | Steel pipe |
| BS | EN 10255 | Medium, Heavy, L, L1, L2 | Plain end steel tubes suitable for welding or for screwing |
| EN 10217-1 | P195, P235, P265 | Welded steel tubes for pressure purposes | |
| EN 10219-1 | S235, S275, S355 | Cold formed welded structural hollow section | |
| ANSI | C80.1 | - | Rigid Steel Conduit |
| UL | 6 | - | Electrical Rigid Metal Conduit |
| JIS (KS) |
G 3452 (D 3507) |
SGP (SPP) |
Steel Pipe for Ordinary Piping |
| G 3454 (D 3562) |
STPG (SPPS) |
Steel Pipes for Pressure Service | |
| G 3461 (D 3563) |
STB (STBH) |
Steel Pipes for Boiler & Heat Exchanger | |
| G 3444 (D 3566) |
STK (SGT) |
Steel Pipes for General Structural Purpose | |
| G 3445 (D 3517) |
STKM (STKM) |
Steel Pipes for General Structural Purpose | |
| G 3466 (D 3568) |
STKR (SRT) |
Steel Square Pipe for General Structural Purpose | |
| C 8305 (C 8401) |
- | Rigid Steel Conduit | |
| (D 3631) | (SPPG) | Carbon steel pipes for fuel gas piping | |
| G 3474 (D 3777) |
STKT (SHT) |
High tensile strength steel tubes for tower structural purposes | |
| A 5525 (F 4602) |
SKK (STP) |
Steel Pipe Piles | |