API 5L X70 pipe is a premium grade piping material in API 5L standard specifications. Also called L485 pipe, as it’s yield strength
minimum in 485 Mpa (70,300 psi). API 5L X70 covers manufacturing types in seamless and welded (ERW, SAW) types, both applied
for oil and gas transmissions.
Specification
|
Type |
API steel pipe |
|
Pipe size |
30 - 426mm |
|
Wall thickness |
3-80mm |
|
Length |
5-12m |
|
Material |
API 5L X 52 X70 X65 X56, |
|
Standard |
GB, DIN, ASTM, API (GB/T8162, GB/T8163, GB/T 3087, GB 5130, DIN 1626, DIN 1629/3, DIN 2391, DIN 17175, DIN 2448, |
|
Application |
petroleum, construction ,shipbuilding, smelting, aviation, power, foodstuff, papermaking, chemical, medical equipment, |
|
Package |
Steel strips bundled, Woven bag packed, Plastic caps on both ends, or as per customers' requirements. |
Chemical Composition
| Grade | Chemical Composition | |||||||
| C | Si | Mn | P | S | V | Nb | Ti | |
| API 5L X70 | 0.17 | 0.45 | 1.75 | 0.020 | 0.010 | 0.10 | 0.05 | 0.06 |
| API 5L X70 PSL 1 Chemical Requirements | ||||||||
| Grade | Composition, % | |||||||
| 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 |
| X70 | 0.28 | 1.4 | – | 0.03 | 0.03 | f | f | f |
| API 5L X70Q PSL 2 Chemical Requirements | |||||||||
| Grade | Composition, % | ||||||||
| C | Si | Mn | P | S | V | Nb | Ti | Other | |
| X70Q | 0.18 | 0.45 | 1.8 | 0.025 | 0.015 | g | g | g | h,l |
API 5L GrB X70 PSL 1/2 Mechanical Properties
| Grade | Yield Strength Mpa | Tensile Strength Mpa | Raito | Elongation | ||
| min | max | min | max | max | min | |
| BN | 245 | 450 | 415 | 655 | 0.93 | f |
| BQ | ||||||
| X70Q | 485 | 635 | 570 | 760 | 0.93 | f |
