Aug 26, 2025 Leave a message

What is ISO 3183 Gr L290 Steel Ppipe

This part of ISO 3183 specifies the technical delivery conditions for seamless and welded steel pipes (excluding stainless steel) of non-alloy and alloy steels, with basic quality and testing requirements (Grade A), used for conveying and distributing flammable and non-flammable fluids (including water) in the petroleum and natural gas industries.‌

 

This part of ISO 3183 includes threaded and extra-heavy threaded line pipes; plain-end pipes, standard-weight plain-end pipes, special plain-end pipes, extra-strong plain-end pipes, double extra-strong plain-end pipes; as well as bell-and-spigot pipes.

The dimensional requirements for threads and thread gauges, gauge practice specifications, gauge tolerances and certifications, as well as thread inspection instruments and methods are given in ISO 10422 and apply to products covered by this part of ISO 3183.

The steel grades covered by this part of ISO 3183 include L175, L210, L245, L290, L320, L360, L390, L415, L450, L485, L555, and intermediate grades above L290.

 

ISO 3183 Gr L290 line pipe

 

ISO3183 L290 PSL1 Chemical composition

PSL

Manufacturing

C

Mn

P

S

PSL1

Seamless

0,28

1,30

≤0,030

0,030

Welded

0,26

1,30

≤0,030

0,030

 

ISO3183 L290 PSL2 Chemical composition

Grades

C

Si

Mn

P

S

V

Nb

T

L290N or X52N

0,24

0,40

1,20

0,025

0,015

0,06

0,05

0,04

 

L290Q or X52Q

0,18

0,45

1,40

0,025

0,015

0,05

0,05

0,04

 

L290M or X52M

0,22

0,45

1,30

0,025

0,015

 

0,05

/0,05

/ 0,04

 

ISO3183 L290 Pipe grades, steel grades and acceptable delivery conditions

PSL

Delivery condition

Pipe grade/steel grade

PSL 1

As-rolled, normalizing rolled, thermomechanical rolled, thermomechanical

formed, normalizing formed, normalized, normalized and tempered or quenched and tempered

L290 or X42

PSL 2

Normalizing rolled, normalizing formed, normalized or normalized and tempered

L290N or X42N

PSL 2

Quenched and tempered L245Q or BQ

L290Q or X42Q

PSL 2

Thermomechanical rolled or thermomechanical formed L245M or BM

 

L290M or X42M

 

ISO3183 L290 Mechanical property

PSL

Pipe grade

Yield strength, Mpa

Tensile strength, Mpa

PSL1

L290 or X42

290

415

PSL2

L290N or X42N

290-495

 

415-655

 

L290Q or X42Q

L290M or X42M

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