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 | 协商 Negotiation | Note:The sum of the columbium [niobium], and vanadium contents shall not exceed 0.06% except that, by agreement between the purchaser and the manufacturer, an alternative maximum may be established. | |
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 | Three layers polyethylene | | 2.0~4.5mm | Inside layer: epoxy(Green) | | | Mid Layer：adhesive（White） | | | Outside layer：polyethylene (Black) | Two layers polyethylene | | 2.0~4.5mm | Inside layer: adhesive | | Outside layer：polythene | DN80~600 | 88.9~609.6 | FBE epoxy | | 200~400um | Epoxy | 2FBE Two layers epoxy | | 400~800um | Inside layer: epoxy(Green) | | Outside layer：intensity epoxy(sage green) | DN100~600 | 114.3~609.6 | 3PP Three layers polypropylene | | 2.5~3mm | Inside layer: epoxy(Green) | | Mid Layer：adhesive（White） | | | Outside layer：polypropylene（White） |
Applications It is used for conveying gas,water,and petroleum of both the oil and natural gas industries. Packaging & Delivery Each bundles pipes will be bundled with 6-8 pcs steel strips and with shipping marks and 2 nylon strips 40-50 days delivery on china port upon receiving orinigal LC or prepayment. | 
