Standard

Type of pipe

Class

Grade

C

max

Si

max

Mn

max

P

max

S

max

V

max

Nb

max

Ti

max

API SPEC 5L

/ISO 3183

WELD

PSL1

L245 B

0.26

-

1.2

-

0.03

0.03

-

-

L290/X42

0.26

-

1.3

-

0.03

0.03

-

-

L320/X46

0.26

-

1.4

-

0.03

0.03

-

-

L360/X52

0.26

-

1.4

-

0.03

0.03

-

-

L390/X56

0.26

-

1.4

-

0.03

0.03

-

-

L415/X60

0.26

-

1.4

-

0.03

0.03

-

-

L450/X65

0.26

-

1.45

-

0.03

0.03

-

-

L485/X70

0.26

-

1.65

-

0.03

0.03

-

-

PSL2

L245M/GR.BM

0.22

0.45

1.2

0.025

0.015

0.05

0.05

0.04

L290M/X42M

0.22

0.45

1.3

0.025

0.015

0.05

0.05

0.04

L320M/X46M

0.22

0.45

1.3

0.025

0.015

0.05

0.05

0.04

L360M/X52M

0.22

0.45

1.4

0.025

0.015

-

-

-

L390M/X56M

0.22

0.45

1.4

0.025

0.015

-

-

-

L415M/X60M

0.12

0.45

1.6

0.025

0.015

-

-

-

L450M/X65M

0.12

0.45

1.6

0.025

0.015

-

-

-

L485M/X70M

0.12

0.45

1.7

0.025

0.015

-

-

-

L555M/X80M

0.12

0.45

1.85

0.025

0.015

-

-

-

Standard

Class

Grade

Yield Strength (MPa)

Tensile Strength (MPa)

Elongation (%)

Y.S/T.S

API SPEC 5L /ISO 3183

PSL1

L245/GR.B

min

245

415

b

-

L290/X42

min

290

415

b

-

L320/X46

min

320

435

b

-

L360/X52

min

360

460

b

-

L390/X56

min

390

490

b

-

L415/X60

min

415

520

b

-

L450/X60

min

450

535

b

-

L485/X70

min

485

570

b

-

PSL2

L245N/BN

L245M/BM

min

245

415

b

-

max

450

760

b

0.93

L290N/X42N

L290M/X42M

min

290

415

b

-

max

495

760

b

0.93

L320N/X46N

L320M/X46M

min

320

435

b

-

max

525

760

b

0.93

L360N/X52N

L360M/X52M

min

360

460

b

-

max

530

760

b

0.93

L390N/X56N

L390M/X56M

min

390

490

b

-

max

545

760

b

0.93

L415N/X60N

L415M/X60M

min

415

520

b

-

max

565

760

b

0.93

L450M/X65M

min

450

535

b

-

max

600

760

b

0.93

L485M/X70M

min

485

570

b

-

max

635

760

b

0.93

L555M/X80M

min

555

625

b

-

max

705

825

b

0.93