API 5L Line Pipe
Pic-(API 5L Line Pipe)
Standard of implementation： API SPEC 5L
Application: used in gas, water, oil transportation in oil and gas industry
| Standard | Product Specification Level |
Steel grade |
Chemical composition, % | ||||||||
| C | Mn | P | S | Si | V | Nb | Ti | CEpcm | |||
| API 5L | PSL 1 | L210 or A | ≤ 0.22 |
≤ 0.90 |
≤ 0.030 |
≤ 0.030 |
- | - | - | - | ≤ 0.25 |
| L245 or B | ≤ 0.28 |
≤ 1.20 |
≤ 0.030 |
≤ 0.030 |
- | - | - | - | ≤ 0.25 |
||
| L290 or x42 | ≤ 0.28 |
≤ 1.30 |
≤ 0.030 |
≤ 0.030 |
- | - | - | - | ≤ 0.25 |
||
| L320 or X46 | ≤ 0.28 |
≤ 1.40 |
≤ 0.030 |
≤ 0.030 |
- | - | - | - | ≤ 0.25 |
||
| L360 or X52 | ≤ 0.28 |
≤ 1.40 |
≤ 0.030 |
≤ 0.030 |
- | - | - | - | ≤ 0.25 |
||
| L390 or X56 | ≤ 0.28 |
≤ 1.40 |
≤ 0.030 |
≤ 0.030 |
- | - | - | - | ≤ 0.25 |
||
| L415 or X60 | ≤ 0.28 |
≤ 1.40 |
≤ 0.030 |
≤ 0.030 |
- | - | - | - | ≤ 0.25 |
||
| PSL 2 | L245Ror BR | ≤ 0.24 |
≤ 1.20 |
≤ 0.025 |
≤ 0.015 |
≤ 0.40 |
c | c | ≤ 0.04 |
≤ 0.25 |
|
| L290R or X42R | ≤ 0.24 |
≤ 1.20 |
≤ 0.025 |
≤ 0.015 |
≤ 0.40 |
≤ 0.06 |
≤ 0.05 |
≤ 0.04 |
≤ 0.25 |
||
| L245N or BN | ≤ 0.24 |
≤ 1.20 |
≤ 0.025 |
≤ 0.015 |
≤ 0.40 |
c | c | ≤ 0.04 |
≤ 0.25 |
||
| L290N or X42N | ≤ 0.24 |
≤ 1.20 |
≤ 0.025 |
≤ 0.015 |
≤ 0.40 |
≤ 0.06 |
≤ 0.05 |
≤ 0.04 |
≤ 0.25 |
||
| L320N or X46N | ≤ 0.24 |
≤ 1.40 |
≤ 0.025 |
≤ 0.015 |
≤ 0.40 |
≤ 0.07 |
≤ 0.05 |
≤ 0.04 |
≤ 0.25 |
||
| L360N or X52N | ≤ 0.24 |
≤ 1.40 |
≤ 0.025 |
≤ 0.015 |
≤ 0.45 |
≤ 0.10 |
≤ 0.05 |
≤ 0.04 |
≤ 0.25 |
||
| L390N or X56N | ≤ 0.24 |
≤ 1.40 |
≤ 0.025 |
≤ 0.015 |
≤ 0.45 |
≤ 0.10 |
≤ 0.05 |
≤ 0.04 |
≤ 0.25 |
||
| L415N or X60N | ≤ 0.24 |
≤ 1.40 |
≤ 0.025 |
≤ 0.015 |
≤ 0.45 |
≤ 0.10 |
≤ 0.05 |
≤ 0.04 |
Negotiation
|
||
 Note: c: The sum of the columbium [niobium], and vanadium contents shall not exceed 0.06% except that, by agreement between the purchaser andthe manufacturer, an alternative maximum may be established. |
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Standard |
Product Specification Level |
Steel grade |
Yield Strength (min), Mpa |
Tensile Strength(min), Mpa |
| API 5L | PSL 1 | L210 or A | 210 | 335 |
| L245 or B | 245 | 415 | ||
| 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 | ||
| PSL 2 | L245Ror BR | 245~450 | 415~760 | |
| L290R or X42R | 290~495 | 415~760 | ||
| L245N or BN | 245~450 | 415~760 | ||
| L290N or X42N | 290~495 | 415~760 | ||
| L320N or X46N | 320~525 | 435~760 | ||
| L360N or X52N | 360~530 | 460~760 | ||
| L390N or X56N | 390~545 | 490~760 | ||
| L415N or X60N | 415~565 | 520~760 |
| Nominal Diameter Range | Outside diameters Rang(mm) | Coating Type | Coating Layer | Coating thickness |
| DN100~600 | 114.3~609.6 | 3PE Three layers polyethylene |
Inside layer: epoxy(Green) | 2.0~4.5mm |
| Mid Layer：adhesive（White） | ||||
| Outside layer：polyethylene (Black) | ||||
| 2PE Two layers polyethylene |
Inside layer: adhesive | 2.0~4.5mm | ||
| Outside layer：polythene | ||||
| DN80~600 | 88.9~609.6 | FBE epoxy |
Epoxy | 200~400um |
| 2 Two layers epoxy |
Inside layer: epoxy(Green) | 400~800um | ||
| Outside layer：intensity epoxy(sage green) | ||||
| DN100~600 | 114.3~609.6 | 3PP Three layers polypropylene |
Inside layer: epoxy(Green) | 2.5~3mm |
| Mid Layer：adhesive（White） | ||||
| Outside layer：polypropylene（White） |
