API 5L GR.X42 LSAW steel pipe

Standard

Grade

Chemical Composition(%)

Tensile STrength(min)

Yield Strength(min)

C                    Mn                     P                     S

Mpa

Mpa

API 5L PSL1

A

0.22

0.90

0.030

0.030

335

210

B

0.28

1.20

0.030

0.030

415

245

X42

0.28

1.30

0.030

0.030

415

290

X46

0.28

1.40

0.030

0.030

435

320

X52

0.28

1. 40

0.030

0.030

460

360

X56

0.28

1.40

0.030

0.030

490

390

X60

0.28

1.40

0.030

0.030

520

415

X65

0.28

1.40

0.030

0.030

535

450

X70

0.28

1.40

0.030

0.030

570

485

Standard

Grade

Chemical Composition(%)

Tensile STrength

Yield Strength

C                     Mn                     P                    S

Mpa

Mpa

API 5L PSL2

B

0.24

1.20

0.025

0.015

415-655

245-450

X42

0.24

1.30

0.025

0.015

415-655

290-495

X46

0.24

1.40

0.025

0.015

435-655

320-525

X52

0.24

1. 40

0.025

0.015

460-760

360-530

X56

0.24

1. 40

0.025

0.015

490-760

390-545

X60

0.24

1. 40

0.025

0.015

520-760

415-565

X65

0.24

1.40

0.025

0.015

535-760

450-600

X70

0.24

1.40

0.025

0.015

570-760

485-635

X80

0.24

1. 40

0.025

0.015

625-825

555-705

PSL 1

PSL 2

Grade range

A25 through X70

GR B through X80

Table 1

Size range

0.405 through 80

4-2/1 through 80

Table 1

Type of pipe ends

Plain-end, threaded-end, bevelled-end, special coupling pipe

Plain-end

Table 1

Seam welding

All methods continous welding limited to Grade A25

All methods except continous and laser welding

Table 1

Electric welds: welder frequency

No minimum

100 kHz minimum

5.1.3.3.2

Heat treatments of electric welds

Required for grades > X42

Required for all grades (GR B through X80)

5.1.3.3.1; J.3.3.2:6.2.7

Chemistry: max C for seamless pipe

0.28% for grades > Gr B

0.24%

Tables 2A, 2B

Chemistry: max C for welded pipe

0.26% for grades > Gr B

0.22%

Tables 2A, 2B

Chemistry: max P

0.03%

0.03%

Tables 2A, 2B

Chemistry: max S

Only when purchases specifies SR18

0.02%

Tables 2A, 2B

Carbon equivalent

None

Maximum required for each grade

4.2:4.3:6.1.3: SR15.1

Yield strength, maximum

None

Maximum for each grade

Tables 3A, 3B

UTS, maximum

None required

Maximum for each grade

Tables 3A, 3B

Fracture toughness

Only when purchaser specifies SR4

Required for all grades

6.2.6; 9.3.5: 9.8.4; 9.10.7;

Non-destructive inspection of seamless pipes

Permitted

SR4 mandatory

Table 14 9.7.2.6

Repare by welding of pipe body, plate and skelp

Permitted by agreement

Prohibited

5.3.2;9.7.6: B.1;B.2

Certification

Certificates when specified per SR15

Prohibited

4.3;9.7.4.4;9.7.6;B.1.2;B.4

Traceability

Traceable only until all tests are passed unless SR15 is specified

Certificates (SR15.1) mandatory
Traceable after completion of tests (SR15.2) mandatory

12.1
5.6

Standard

Standard

SY/T5040-2000

Y/T5037-2000

SY/T9711.1-197

ASTM A252

AWWA C200-9

API 5L PSL1

Tube end OD deviation

± 0.5%D

± 0.5%D

-0.79mm～+2.38

<± 0.1%T

<± 0.1%T

± 1.6mm

Wall thickness

± 10.0%T

D<508mm, ±12.5%T

- 8%T～+19.5%T

<- 12.5%T

-8%T～+19.5%T

5.0mm

D>508mm, ±10.0%T

T≥15.0mm, ±1.5m