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Seamless casing pipe

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Seamless steel pipe for casing
Standard: API SPEC 5CT(American Petroleum Institute)
Grade: J55,N80,L80,P110

Dimension tolerance:

Types

Out diameter

Wall thickness

Cold drawn tube

Out diameter

Out diameter

<114.3

±0.79

-12.5%

≥114.3

-0.5%,+1%


MeMchanical properties:

Standard

Grade

Tensile strength

Yield strength

API SPEC 5CT

J55

≥517

379-552

K55

≥517

≥655

N80

≥689

552-758

L80

≥655

552-655

P110

≥862

758-965


Chemical composition:

Standard

Grade

chemical component(%)

API SPEC 5CT


C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

Als

J55K55

0.34-0.39

0.20-0.35

1.25-1.50

≤0.020

≤0.015

≤0.15

≤0.20

≤0.20

≤0.020

N80

0.34-0.38

0.20-0.35

1.45-1.70

≤0.020

≤0.015

≤0.15

/

/

/

0.11-0.16

≤0.020

L80

0.15-0.22

1.00

0.25-1.00

≤0.020

≤0.015

12.0-14.0

≤0.20

≤0.20

/

/

≤0.020

P110

0.26-0.35

0.40-0.70

0.40-0.70

≤0.020

≤0.015

0.80-1.10

≤0.20

≤0.20

0.15-0.25

≤0.08

≤0.020


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  0086-187-7406-7534

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