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  • Petroleum Steel Pipe
  • Petroleum Steel Pipe
  • Petroleum Steel Pipe
  • Petroleum Steel Pipe
  • Petroleum Steel Pipe

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Petroleum Steel Pipe
Petroleum steel pipe offers high pressure resistance, superior corrosion resistance and excellent weldability, designed for harsh oil and gas environments. Ideal for drilling, transmission pipelines, offshore platforms and refinery systems, these pipes can withstand extreme temperatures, acid/alkaline conditions and seismic stresses.
Phone : +86 18306413114
Email : olivia@sdsq-steel.com
Wechat : +86 18306413114
Whatsapp : +86 18306413114
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Product Description


API 5CT N80 casing pipe chemical composition:

Grade

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

N80

0.34-0.38

0.20-0.35

1.45-1.70

≤0.020

≤0.015

≤0.15

/

/

/

0.11-0.16

API 5CT N80 casing pipe mechanical properties:


Grade

Type

Total elongationunder load %

Yield strength MPa

Tensile strength min. MPa

min.

max .


N80

1

0.5

552

758

689

N80

Q

0.5

552

758

689


API 5CT N80 casing pipe specification:
Thread type: SC (Short round thread), LC (Long round thread), BC (Buttress thread)
Length: R1 (4.88-7.62m), R2 (7.62-10.36m), R3 (10.36-14.63m)

Outer  Diameter

Wall Thickness

Weight

Threaded

Length

in

mm

kg/m

lb/ft

4 1/2″

114.3

14.14-22.47

9.50-11.50

LTC/STC/BTC

R1/R2/R3

5″

127

17.11-35.86

11.50-24.10

LTC/STC/BTC

R1/R2/R3

5 1/2″

139.7

20.83-34.23

14.00-23.00

LTC/STC/BTC

R1/R2/R3

6 5/8″

168.28

29.76-35.72

20.00-24.00

LTC/STC/BTC

R1/R2/R3

7″

177.8

25.30-56.55

17.00-38.00

LTC/STC/BTC

R1/R2/R3

7 5/8″

193.68

35.72-63.69

24.00-42.80

LTC/STC/BTC

R1/R2/R3

8 5/8″

219.08

35.72-72.92

24.00-49.00

LTC/STC/BTC

R1/R2/R3

9 5/8″

244.48

48.07-86.91

32.30-58.40

LTC/STC/BTC

R1/R2/R3

10 3/4″

273.05

48.73-97.77

32.75-65.70

LTC/STC/BTC

R1/R2/R3

11 3/4″

298.45

62.50-89.29

42.00-60.00

LTC/STC/BTC

R1/R2/R3

13 3/8″

339.72

71.43-107.15

48.00-72.00

LTC/STC/BTC

R1/R2/R3



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