Seamless Steel Pipe
API 5L seamless pipe is one of our most popular products.
Auwelltier Steel stocks a full line of API 5L Line Pipe. Sizes 2″ to 48″. In wall thickness STD to 4″ thick.
API 5L Seamless Steel Pipe Specifications
We stock 3 different methods of manufacture: Seamless, ERW, and DSAW
API 5L is typically used in the Oil and Gas Industry and is inventoried in grades:
- X42
- X52
- X65
- X70
See charts below for details of physical and chemical properties.
API 5L Mechanical Properties
| Properties | API 5L PSL-1 X52 | API 5L PSL-2 X52 | |
|---|---|---|---|
| Tensile strength, min/max, psi (MPa) | 66,700(460) / NA | 66,700 / 110,200 | |
| Yield strength, min/max, psi (MPa) | 52,000 (300) / NA | 52,000 / 76,900 | |
Note: For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.
API 5L Chemical Properties
| PSL | C | Mn | P, max. | S, max. | Si, min. | V | Nb | Ti | Other | CEIIW | CEpcm |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.24 | 1.40 | 0.025 | 0.015 | 0.45 | 0.10 | 0.05 | 0.04 | b,c | 0.043 | 0.025 |
| 2 | 0.24 | 1.40 | 0.03 | 0.03 | – | b | b | b | – | – | – |
Notes:
a. 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.
b. The sum of the niobium, vanadium, and titanium concentrations shall be < 0.06%.
c. Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium, and 0.12% maximum for molybdenum.
Select Differences Between PSL 1 & PSL 2
| Attributes | PSL 1 | PSL 2 | |
|---|---|---|---|
| CVN impact (Charpy) testing | None required | Required for all grades | |
| Nondestructive Inspection of Seamless | Only when purchaser specifies SR4 | SR4 mandatory | |
| Certification | Certificates when specified per SR15 | Certificates (SR 15.1) mandatory | |
| Traceability | Traceable only until all tests are passed, unless SR15 is specified | Traceable after completion of tests (SR 15.2) mandatory | |
| Hydrostatic Test | Required | Required | |
Note: This is summarized information from API Specification 5L. Please refer to the specific Standard or Specification or contact us for more details.
