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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

协商
Negotiation

Note: c: 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

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

2FBE(双层环氧粉末)
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)