Line pipe is used for oil and gas transportation, it can be applied to oil and gas, chemical and electric engineering industry.
Since the percentage of sulphureous well increase both in domestic and international oil production, a large number of sulfide exists in the environment of petroleum transportation, which requires higher sour service standards. Sour service line pipe is the optimal production for this situation stated above. Product category of Changbao sour service line pipe covers all the grade of API 5L to meet different requirement of customers, and provide satisfied service to our customers.
Grade:
PSL1 Requirement of elongation performance
Grade | Y.S Rt0.5/MPa | T.S. Rm/MPa |
L175 or A25 | ≥175 | ≥310 |
L175P or A25P | ≥175 | ≥310 |
L210 or A | ≥210 | ≥335 |
L245R or BR L245 or B | ≥245 | ≥415 |
L290R or X42R L290 or X42 | ≥290 | ≥415 |
L320 or X46 | ≥320 | ≥435 |
L360 or X52 | ≥360 | ≥460 |
L390 or X56 | ≥390 | ≥490 |
L415 or X60 | ≥415 | ≥520 |
L450 or X65 | ≥450 | ≥535 |
L485 or X70 | ≥485 | ≥570 |
PSL2 Requirement of elongation performance
Grade | Y.S. Rt0.5/MPa | T.S. Rm/MPa | Yield Ratio Rt0.5/Rm | ||
L245R or BR L245N or BN L245Q or BQ | 245~450 | 415~760 | ≤0.93 | ||
L290R or X42R L290N or X42N L290Q or X42Q | 290~495 | 415~760 | ≤0.93 | ||
L320N or X46N L320Q or X46Q | 320~525 | 435~760 | ≤0.93 | ||
L360N or X52N L360Q or X52Q | 360~530 | 460~760 | ≤0.93 | ||
L390N or X56N L390Q or X56Q | 390~545 | 490~760 | ≤0.93 | ||
L415N or X60N L415Q or X60Q | 415~565 | 520~760 | ≤0.93 | ||
L450Q or X65Q | 450~600 | 535~760 | ≤0.93 | ||
L485Q or X70Q | 485~635 | 570~760 | ≤0.93 | ||
L555Q or X80Q | 555~705 | 625~825 | ≤0.93 | ||
Main grade for sour service
BNS/X42NS/X46NS/X52NS
BQS/42QS/46QS/52QS/56QS/X60S/65QS/70QS
Standard
GB/T9711-2011
API SPEC 5L< Specification for Line Pipe >
Feature:
Sour service line pipe of Changbao is rolled by CPE or Assel set using high purity and calcification billet with low-sulfur. The rolling procedure is precisely controlled for perfect dimension. After the heat treatment, the performance of our product can satisfy the standard requirement of API 5L. We also have our own HIC and SSC lab to test product performance and guarantee the anti-corrosion of our product.
Service environment
Sour service line pipe is designed for the acidic oil and gas exploration environment to solve the leaking and cracking problem due to HIC and SSC. Generally, service environment temperature is closed to ground surface temperature, partial pressure of CO2≤0.2MPa, H2S≤0.0003MPa.
