Tubing and Casing, Line Pipes

and Casing, are usaged for Conveying gas,water, and oil in both the oil and natural industries.

Tubing and casing pipe

The pipes are usaged for Conveying gas,water,and oil in both the oil and natural industries

Tubular goods for petroleum and natural gas industries
Production Standard, Grade, Steel No:
PSL1 L175/A25, L210/A, L245/B, L290/X42, L320/X46, L360/X52, L485/X70
PSL2 L245R/BR, L290N/X42N, L320N/X46N, L360N/X52N, L415/X60N
5CT PSL1, PSL2, PSL3, H40, J55, K55, N80
GB/T 9711.1 L175, L210, L245, L290, L320, L360
GB/T 9711.2 L245NB, L290NB, L360NB
GB/T 9711.3 L245NC, L290NC, L360NC
Delivery Condition:Annealed, Normalized, Normalized and Tempered

Inspection and Test:

Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness), Drift Test, Surface and Dimension Test,NDE, Hydrostatic Test, MT
Surface Treatment:Oil-dip, Shot Blasting, Varnish

Mechanical properties:

Standard

Steel grade

Yield Strength

(MPa)

Tension Strength

(MPa)

Elongation

(%)

Impact energy(J)

API SPEC 5L

ISO 3183

GB/T 9711

 

PSL1

 

look API SPEC 5L

 

A25/L175

≥172

≥310

A/L210

≥207

≥331

B/L245

≥241

≥414

X42/L290

≥290

≥414

X46/L320

≥317

≥434

X52/L360

≥359

≥455

X56/L390

≥386

≥490

X60/L415

≥414

≥517

X65/L450

≥448

≥531

X70/L485

≥483

≥565

PSL2

 

Min

Max

Min

Max

Min

B/L245

241

448

441

758

41(27)

X42/L290

290

496

414

758

41(27)

X46/L320

317

524

434

758

41(27)

X52/L360

359

531

455

758

41(27)

X56/L390

386

544

490

758

41(27)

X60/L415

414

565

517

758

41(27)

X65/L450

448

600

531

758

41(27)

X70/L485

483

621

565

758

41(27)

X80/L555

552

690

621

827

101(68)

Chemical Composition:

Standard

Steel grade

C

Mn

P

S

Max

Max

Min

Max

Max

API SPEC 5L

ISO 3183

GB/T 9711

PSL1

A25/L175

0.21

0.60

 

0.030

0.030

A25P/L175P

0.21

0.60

0.45

0.080

0.030

A/L210

0.22

0.90

 

0.030

0.030

B/L245

0.28

1.20

 

0.030

0.030

X42/L290

0.28

1.30

 

0.030

0.030

X46/L320, X52/L360 ,X56/390

0.28

1.40

 

0.030

0.030

X60/L415, X65/L450, X70/L485

0.28

1.40

 

0.030

0.030

0.0PSL2

B/L245

0.24

1.20

 

0.025

0.015

X42/L290

0.24

1.30

 

0.025

0.015

X46/L320, X52/L360, X56/L390

0.24

1.40

 

0.025

0.015

X60/L415, X65/L450, X70/L485

0.24

1.40

 

0.025

0.015

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