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X46 pipeline pipe is a type of steel pipe used in the oil and gas transportation industry. The "X46" in its name represents the strength grade of the steel, classifying it as a medium-strength pipeline steel. These pipes are primarily used to construct long-distance transmission pipelines, playing a crucial role in transporting energy resources. The following will introduce Shanghai X46 pipeline pipe from several aspects.
X46 line pipes are typically made from carbon steel or low-alloy steel using hot rolling or cold drawing processes. During manufacturing, the steel undergoes smelting, continuous casting, rolling, and forming steps to ensure the final pipe has a uniform chemical composition and stable mechanical properties.
The X46 grade indicates a minimum yield strength of 46,000 psi (approximately 317 MPa), enabling it to withstand certain internal pressures and external loads. Rigorous quality control is also implemented during manufacturing, including non-destructive testing and pressure testing, to guarantee product reliability and safety.
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 | 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 Grade X46 Carbon Steel Seamless Pipes
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