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Seamless Line Pipe API 5L Gr. 70 PSL 1 for Natural Gas Transport
1. Standards:
API spec 5L Specification for Line Pipe
2. Application:
Transportation of petroleum and natural gas;
Sour service; Offshore service
3. Introduction:
API 5L X70 PSL1 Pipe are used in onshore and offshore oil and gas pipelines requiring critical service, high performance and tight tolerances.
4. Chemical Requirements
| Chemical Composition for PSL 1 pipe with t ≤ 0.984” | |||||||
| Steel Grade | Mass fraction, based on heat and product analysesa | ||||||
| C | Mn | P | S | V | Nb | Ti | |
| max b | max b | max. | max. | max. | max. | max. | |
| X70 | 0.28 e | 1.40 e | 0.03 | 0.03 | f | f | f |
| a 0.50% maximum for copper; 0.50% maximum for nickel; 0.5% maximum for chromium; and 0.15% maximum for molybdenum. For grades up to and including X52, Cu, Cr and Ni shall not be added intentionally. | |||||||
| b. For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for manganese is permissible, up to a maximum of 1.65% for grades ≥B, but ≤X52; up to a maximum of 1.75% for grades＞X52, but ＜X70; and up to a maximum of 2.00% for grade X70. | |||||||
| c. Unless otherwise agreed, the sum of the niobium and vanadium contents shall be ≤0.06% | |||||||
| d. The sum of the niobium, vanadium and titanium concentrations shall be ≤0.15% | |||||||
| e. unless otherwise agreed. | |||||||
| f. unless otherwise agreed, the sum of the niobium, vanadium and titanium concentrations shall be ≤0.15% | |||||||
5. Available Size Range
| OD | Thickness | ||
| mm | inch | mm | SCH |
| 219~1219 | 8’’~48’’ | 2.11~130 | ≥SCH10 |
| *If the steel grades and size you are looking for are not listed above, please contact us for further information. | |||