API 5L X46 high yield welded pipe is a pipeline steel pipe designed and manufactured according to the strict standards set by the American Petroleum Institute. The "X46" name represents the minimum yield strength of the pipe, which is 46,000 PSI and the ultimate tensile strength is 66,000 PSI, which ensures good mechanical properties and reliability.
API 5L X46 high toughness seamless steel pipe, its high strength and corrosion resistance make it suitable for onshore and offshore applications that are often exposed to harsh environmental conditions. API 5L X46 oil pipeline can be used to transport important fluids such as oil and natural gas over long distances.
API 5L X46 Pipe Chemical Composition
| API 5L-PSL 1 Chemical Requirements | ||||||||
|---|---|---|---|---|---|---|---|---|
| Grade | C max | Mn max | P | S max | V max | Nb max | Ti max | |
| min | max | |||||||
| B | 0.28 | 1.2 | - | 0.03 | 0.03 | c.d | c,d | d |
| X46 | 0.28 | 1.4 | - | 0.03 | 0.03 | d | d | d |
| Standard | Class | Grade | C | Si | Mn | P | S | V | Nb | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
| max | max | max | max | max | max | max | max | |||
| APL 5L ISO 3181 |
PSL1 | L245 or B | 0.26 | - | 1.20 | 0.030 | 0.030 | - | - | - |
| L320 or X46 | 0.26 | - | 1.40 | 0.030 | 0.030 | a,b | a,b | b |
API 5L Gr b X46 PSL 1 Mechanical Properties
| Grade | Yield Strength Mpa | Tensile Strength Mpa | Elongation |
|---|---|---|---|
| B | 245 | 415 | c |
| API 5l X46 Pipe | 320 | 435 | c |
API 5L PSL2 X46 Steel Pipe






