API Standard Oil and Gas Well Casing Tube 5CT

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

API Standard Oil and Gas Well Casing Tube 5CT

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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.

API Standard Oil and Gas Well Casing Tube 5CT

Q: How do steel pipes handle extreme temperatures?: Steel pipes are designed to handle extreme temperatures due to their high thermal conductivity and resistance to heat. At high temperatures, steel pipes expand but maintain their structural integrity, preventing them from warping or weakening. Additionally, steel's low thermal expansion coefficient allows it to withstand rapid temperature changes without significant damage. Overall, steel pipes are well-suited for transporting hot or cold fluids and gases in various industrial applications.

Q: What is the typical diameter range for steel pipes?: The typical diameter range for steel pipes varies, but it typically falls between 1/2 inch to 48 inches.

Q: How are steel pipes protected against mechanical impact?: Steel pipes are protected against mechanical impact through various methods such as adding protective coatings, using steel pipe supports and clamps, or installing protective barriers to absorb and distribute impact forces.

Q: How are steel pipes used in the manufacturing of boilers and heat exchangers?: Steel pipes are used in the manufacturing of boilers and heat exchangers primarily for their excellent strength, durability, and heat resistance properties. These pipes are used to carry hot fluids and gases, such as water and steam, throughout the boiler or heat exchanger system. The steel pipes provide a reliable and efficient means of transferring heat and maintaining the desired temperature within the system. Additionally, their corrosion resistance ensures long-lasting performance, making them an essential component in the manufacturing of boilers and heat exchangers.

Q: What are the applications of steel pipes 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 offer excellent durability, corrosion resistance, and high tensile strength, making them ideal for carrying fluids and withstanding harsh environments. Additionally, steel pipes can be easily formed and welded, allowing for efficient manufacturing and assembly processes in the automotive sector.

Q: Can steel pipes be used for sewage disposal systems?: Yes, steel pipes can be used for sewage disposal systems. Steel pipes are commonly used in sewage systems due to their durability, resistance to corrosion, and ability to withstand high pressure. They are suitable for carrying wastewater and sewage safely and efficiently.

Q: What does "buried steel pipe" 6*2SC100 mean?: This is the electrical drawings, such as water supply and drainage, HVAC is that DN, SC is the laying of electrical wiring, which is defined as threading pipe laying. 100 is the nominal diameter of the pipe, unit millimeters.

Q: What are the environmental impacts of steel pipe manufacturing?: The environmental impacts of steel pipe manufacturing include the extraction of raw materials such as iron ore and coal, leading to habitat destruction and increased carbon emissions. The manufacturing process itself involves high energy consumption and releases greenhouse gases, contributing to climate change. Additionally, the disposal of waste materials and chemicals used during production can contaminate soil and water sources if not handled properly. Overall, steel pipe manufacturing has significant environmental implications that need to be addressed through sustainable practices and technologies.

Q: How are steel pipes used in sewage systems?: Steel pipes are commonly used in sewage systems due to their durability and strength. They are used to transport sewage from homes, buildings, and industries to treatment plants or disposal sites. The corrosion-resistant properties of steel make it an ideal material for sewage systems, ensuring longevity and preventing leaks. Additionally, steel pipes can withstand high pressure and heavy loads, making them suitable for underground installations.

Q: What are the different methods of wrapping steel pipes for corrosion protection?: Corrosion protection for steel pipes can be achieved through various methods, tailored to specific applications and environmental conditions. Some commonly used techniques include: 1. Tape Wrapping: Steel pipes are wrapped with corrosion-resistant tape, like polyethylene or polypropylene tape, to create a barrier between the pipe and corrosive elements. This reduces the risk of direct contact and subsequent corrosion. 2. Inner Wrapping: A protective coating or lining is applied to the inside surface of the steel pipe. This method is commonly employed for pipes transporting fluids or gases, offering an additional layer of protection against internal corrosion. 3. External Coating: A widely utilized technique involves applying a protective coating to the outer surface of the steel pipe. This coating, which can consist of materials like epoxy, polyethylene, or polyurethane, acts as a barrier against corrosive elements, extending the pipe's lifespan. 4. Cathodic Protection: An electrochemical method is utilized to safeguard steel pipes from corrosion. By connecting the steel pipe to a sacrificial anode, such as zinc or magnesium, the anode corrodes instead of the pipe. This diverts corrosive currents away from the pipe, preventing its corrosion. 5. Heat Shrink Sleeve: Heat shrink sleeves are commonly employed for corrosion protection in underground or submerged scenarios. These sleeves, made of heat-activated material, shrink when heated to form a tight seal around the pipe. By preventing direct contact with moisture and corrosive elements, the sleeve effectively acts as a barrier. 6. Fusion Bonded Epoxy (FBE) Coating: FBE coating entails applying a thermosetting powder coating to the steel pipe's surface, which then fuses to create a protective layer. This coating exhibits strong adhesion and corrosion resistance, making it a popular choice for various steel pipe applications. Choosing the appropriate corrosion protection method for steel pipes depends on factors like the environment, specific corrosive elements, intended use, and other requirements. Seeking professional advice and consultation may be necessary to determine the most suitable technique for a particular situation.

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