API Standard Oil and Gas Well Casing Tube 5B14

API Standard Oil and Gas Well Casing Tube 5B14 System 1

API Standard Oil and Gas Well Casing Tube 5B14

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1000 m.t.

Supply Capability:: 20000 m.t./month

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Specifications

Parameters		Value
Material		J55, K55, N80, N80Q, L80, P110, other grade available as your requirement
Outer Diameter		2-3/8"~4-1/2" (73.02~114.3mm)
Wall Thickness		4.83~16mm
Forms of Thread		EUE, NUE and Integral-joint
Length Range		R1(20~24ft), R2(28~32ft)
MTR		accordance with API Specification 5CT

Tolerances

Parameters		Value
Outside diameter		+-0.031 inch (0.79mm)
Wall thickness		-12.5%, positive deviations are limited by pipe weight
Weight Deviation		+6.5% /-3.5%

Mechanical Properties

Grade	Tensile Strength (PSI/MPa)	Yield Strenght (PSI/MPa)
H-40	No less than 60000(414)	Between 40000 (276) ~ 80000 (552)
J-55	No less than 75000 (517)	Between 55000 (379) ~ 80000 (552)
N-80	No less than 100000 (689)	Between 80000 (552) ~ 110000 (758)
P-110	No less than 125000 (862)	Between 110000 (758) ~ 140000 (965)

Inspection

Physical properties are checked and each length hydrostatically tested, normally to only 3,000 psi in the plain end (unthreaded) condition. The following are also checked:

Dimensions
Weights
Straightness
Lengths

Part of this inspection is to drift all lengths.
Despite all the American Petroleum Institute (API) specifications and testing, some tubing defects are still found after delivery; thus, some operators do further inspection.

Inspection Method

Size and surface inspection
NDT and pressure test and third party certication
Hydrostatic
Drifting test
Physical and chemicail analysis
Hardness and pressure test.
Electromagnetic
Magnetic particle
Ultrasonic

Dimensions and Weight

sizes

weight

Type of end

NU kg/m

EU kg/m

IJ kg/m

H40

J55

L80

N80 1/Q

C90

T95

P110

2-3/82-3/8

2-3/8

4.004.60

5.80

6.60

7.35

-4.70

5.95

7.45

–

60.3260.32

60.32

5.956.85

8.63

9.82

10.94

-6.99

8.85

11.09

–

4.244.83

6.45

7.49

8.53

PUPNU

PNPNU

PNU

PNPNU

PNU

PNPNU

PNU

PNPNU

PNU

-PNU

PNU

2-7/82-7/8

2-7/8

6.407.80

8.60

9.35

10.50

11.50

6.507.90

8.70

9.45

–

73.0273.02

73.02

9.5211.61

12.80

13.91

15.63

17.11

9.6711.76

12.95

14.06

–

5.517.01

7.82

8.64

9.96

11.18

PNU-

PNUPNU

PNU

PNUPNU

PNU

PNUPNU

PNU

PNUPNU

PNU

PNUPNU

PNU

3-1/23-1/2

3-1/2

7.709.20

10.20

12.70

14.30

15.50

17.00

-9.30

12.95

–

88.9088.90

88.90

11.4613.69

15.18

18.90

21.28

23.07

25.30

-13.84

19.27

–

5.496.45

7.34

9.52

10.92

12.09

13.46

PNPNU

PNU

PNPNU

PNU

PNPNU

PNU

PNPNU

PNU

-PNU

PNU

9.5010.70

13.20

16.10

18.90

22.20

-11.00

–

101.60101.60

101.60

14.14-

19.64

23.96

28.13

33.04

-16.37

–

5.746.65

8.38

10.54

12.70

15.49

PNPU

–

4-1/24-1/2

12.6015.20

12.75-

–

114.30114.30

18.7522.62

18.97-

–

6.888.56

PNU-

PNUP

PNU-

PNUP

–

4-1/24-1/2

4-1/2

17.0018.90

21.50

23.70

26.10

–

114.30114.30

114.30

25.3028.13

32.00

35.27

38.84

–

9.6510.92

12.70

14.22

16.00

–

P——Plain end;N—Non-upset threaded and coupled;U—External upset threaded and coupled;I—insert joint.

Q:What are the different grades of steel used in pipe manufacturing?: The different grades of steel used in pipe manufacturing vary depending on the intended use and specific requirements. Some common grades include carbon steel (such as ASTM A106 or API 5L), alloy steel (such as ASTM A335), stainless steel (such as ASTM A312), and duplex steel (such as ASTM A790). These grades have different chemical compositions and mechanical properties to suit various applications in industries like oil and gas, construction, and plumbing.

Q:Can steel pipes be used for offshore oil and gas platforms?: Yes, steel pipes are commonly used for offshore oil and gas platforms due to their high strength, durability, and resistance to corrosion in marine environments.

Q:What is the lifespan of galvanized steel pipes?: The lifespan of galvanized steel pipes can vary depending on various factors such as the quality of the galvanization, the environment in which they are installed, and the maintenance they receive. However, on average, galvanized steel pipes can last between 40 to 70 years.

Q:What are the different types of coatings used for internal lining of steel pipes?: There are several types of coatings used for the internal lining of steel pipes, including epoxy coatings, polyurethane coatings, cement mortar coatings, and thermoplastic coatings. These coatings help to protect the steel pipes from corrosion, increase their lifespan, and improve the flow of fluids through the pipes.

Q:Are steel pipes affected by magnetic fields?: Yes, steel pipes can be affected by magnetic fields. Steel is a ferromagnetic material, which means it is strongly attracted to magnets and can be magnetized. When exposed to a magnetic field, steel pipes can become magnetized, causing them to behave like magnets themselves. This magnetic effect can have several implications. First, if steel pipes are near strong magnetic fields, such as those generated by electrical currents or powerful magnets, they can experience a force that may cause them to move or vibrate. This can be problematic in certain applications, especially if the pipes need to remain stable and secure. Second, the presence of magnetic fields can induce electrical currents in steel pipes. These currents, known as eddy currents, can generate heat and energy losses. In some cases, this can lead to inefficiencies and increased energy consumption in systems that involve steel pipes. Lastly, magnetic fields can also affect the accuracy of magnetic measurement devices used to detect defects or corrosion in steel pipes. The presence of a magnetic field can interfere with the readings, making it more challenging to accurately assess the condition of the pipes. To mitigate these effects, various measures can be taken. For instance, in applications where stability is crucial, steel pipes can be shielded or isolated from strong magnetic fields using non-magnetic materials. Additionally, the impact of eddy currents can be minimized by using pipes with proper insulation or by using magnetic shielding techniques. Overall, while steel pipes are indeed affected by magnetic fields, the extent of the impact depends on factors such as the strength of the magnetic field, the composition of the steel, and the specific application or environment in which the pipes are used.

Q:What are the different types of steel pipe fittings for plumbing systems?: There are several different types of steel pipe fittings for plumbing systems, including elbows, tees, couplings, unions, reducers, and flanges.

Q:Can steel pipes be used for signposts or street lighting poles?: Yes, steel pipes can be used for signposts or street lighting poles. Steel is a strong and durable material that can withstand outdoor conditions and support the weight of signs or lighting fixtures. It is commonly used in construction for such purposes due to its strength and longevity.

Q:How are steel pipes used in the automotive industry?: Steel pipes are commonly used in the automotive industry for various applications such as exhaust systems, fuel lines, and structural components. They provide durability, strength, and resistance to high temperatures, making them ideal for carrying exhaust gases, fuel, and providing support to the vehicle's frame.

Q:How do you calculate the pipe flow velocity coefficient for steel pipes?: The pipe flow velocity coefficient for steel pipes can be calculated using the Manning's equation. Manning's equation is used to calculate the flow velocity in open channels and pipes, and it takes into account the hydraulic radius, slope, and roughness coefficient of the pipe. To calculate the pipe flow velocity coefficient for steel pipes, follow these steps: 1. Determine the hydraulic radius (R) of the steel pipe. The hydraulic radius is calculated by dividing the cross-sectional area of the pipe (A) by the wetted perimeter (P). The formula is R = A/P. 2. Find the slope (S) of the pipe. The slope represents the change in elevation divided by the length of the pipe. It is usually given as a ratio or a percentage. 3. Determine the roughness coefficient (n) of the steel pipe. The roughness coefficient represents the internal roughness of the pipe and can be obtained from literature or pipe manufacturer specifications. It is commonly given in terms of the Manning's roughness coefficient. 4. Substitute the values of hydraulic radius (R), slope (S), and roughness coefficient (n) into the Manning's equation: V = (1/n) * R^(2/3) * S^(1/2) where V is the flow velocity. 5. Solve the equation for V to calculate the pipe flow velocity coefficient for steel pipes. It is important to note that the calculated velocity coefficient may vary based on the specific pipe dimensions, flow conditions, and other factors. Therefore, it is recommended to consult relevant engineering standards or consult with a hydraulic engineer to ensure accurate and reliable calculations for specific applications.

Q:How do steel pipes handle extreme temperatures?: Steel pipes can handle extreme temperatures due to their high strength and thermal stability. The properties of steel, such as its excellent heat resistance and low thermal expansion, allow it to withstand both high and low temperatures without significant deformation or structural damage. Additionally, the use of specialized coatings and insulation can further enhance the heat resistance of steel pipes, making them suitable for a wide range of applications in extreme temperature environments.

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