Seamless Casing Steel Pipe 2

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1. Seamless Casing Steel Pipe Specifications

1) Grade:H-40,J-55,K-55,N-80,C-75,L-80,C-90,C-95,P-110,Q-125

2) Size: 4 1/2", 5", 5 1/2", 6 5/8", 7", 7 5/8", 9 5/8", 10 3/4", 13 3/8", 16", 18 5/8", 20"

3) Wall thickness: 5.11 - 16.13 mm

4) Clasp Type : STC, LTC, BTC

5) Length : R1,R2,R3

6) Products comply with API SPEC 5CT standards, and use for API 5CT emblem

2. Round thread casing coupling size quality and tolerance:

Code	Specification	Diameter W /mm	Min Length		Boring diameter /mm	Width of bearing surferingb/mm	Weight
	Diameter D /mm		Short coupling Nl	Coupling length Nl			short couping	Coupling length
4-1/2	114.30	127.00	158.75	177.80	116.68	3.97	3.62	4.15
5	127.00	141.30	165.10	196.85	129.38	4.76	4.66	5.75
5-1/2	139.70	153.67	171.45	203.20	142.08	3.18	5.23	6.42
6-5/8	168.26	187.71	184.15	222.25	170.66	6.35	9.12	11.34
7	177.80	194.46	184.15	228.60	180.18	4.76	8.39	10.83
7-5/8	193.70	215.90	190.50	234.95	197.64	5.56	12.30	15.63
8-5/8	219.08	244.48	196.85	254.00	223.04	6.35	16.23	21.67
9-5/8	244.48	269.88	196.85	266.70	248.44	6.35	18.03	25.45
10-3/4	273.05	298.45	203.20	---	277.02	6.35	20.78	---
11-3/4	298.45	323.85	203.20	---	302.42	6.35	22.64	---
13-3/8	339.72	365.12	203.20	---	343.69	5.56	25.66	---

Chemical composition:

Standard codes	Models of steel tubes	Chemical compositions
		C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	Als
API SPEC 5CT	J55K55 (37Mn5)	0.340.39	0.200.35	1.251.50	≤0.020	≤0.015	≤0.15	≤0.20	≤0.20	≤0.020
	N80 (36 Mn2V)	0.340.38	0.200.35	1.451.70	≤0.020	≤0.015	≤0.15	0.110.16	≤0.020
	L80(13Cr)	0.150.22	≤1.00	0.251.00	≤0.020	≤0.010	12.014.0	≤0.20	≤0.20	≤0.020
	P110 (30CrMo)	0.260.35	0.170.37	0.400.70	≤0.020	≤0.010	0.801.10	≤0.20	≤0.20	0.150.25	≤0.08	≤0.0

Standard codes

Models of steel tubes

Chemical compositions

Als

API SPEC 5CT

J55K55
(37Mn5)

0.340.39

0.200.35

1.251.50

≤0.020

≤0.015

≤0.15

≤0.20

≤0.020

N80
(36 Mn2V)

0.340.38

0.200.35

1.451.70

≤0.020

≤0.015

≤0.15

0.110.16

≤0.020

L80(13Cr)

0.150.22

≤1.00

0.251.00

≤0.020

≤0.010

12.014.0

≤0.20

≤0.020

P110
(30CrMo)

0.260.35

0.170.37

0.400.70

≤0.020

≤0.010

0.801.10

≤0.20

0.150.25

≤0.08

≤0.0

3. FAQ of Seamless Casing Steel Pipe:

①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Any question, pls feel free to contact us !

4、Seamless Casing Steel Pipe Images：

Seamless Casing Steel Pipe 2

Q: Can steel pipes be used for underground stormwater systems?: Yes, steel pipes can be used for underground stormwater systems. Steel pipes are durable and resistant to corrosion, making them a suitable choice for underground applications. Additionally, steel pipes can handle high volumes of stormwater, making them ideal for stormwater management systems.

Q: Can steel pipes be used for underground water lines?: Yes, steel pipes can be used for underground water lines.

Q: How do steel pipes handle water erosion?: Steel pipes handle water erosion well due to their inherent strength and durability. The smooth surface of steel pipes helps to minimize friction and reduce the potential for erosion. Additionally, the corrosion-resistant nature of steel prevents rusting, ensuring long-term protection against water erosion.

Q: What are the safety considerations when working with steel pipes?: When working with steel pipes, there are several important safety considerations to keep in mind. Firstly, it is crucial to wear appropriate personal protective equipment (PPE). This includes safety glasses or goggles to protect the eyes from flying debris or sparks, gloves to protect the hands from sharp edges or hot surfaces, and steel-toed boots to protect the feet from falling objects or heavy equipment. Additionally, wearing a hard hat is recommended to protect the head from potential falling objects or overhead hazards. Next, it is important to be aware of the weight and size of steel pipes. Handling heavy pipes can put strain on the back and muscles, so it is essential to use proper lifting techniques and seek assistance when necessary. Using lifting equipment, such as cranes or forklifts, can also help prevent injuries related to heavy lifting. Another safety consideration is the risk of cuts or punctures. Steel pipes can have sharp edges or burrs, so it is important to handle them with care and wear appropriate gloves to reduce the risk of injury. Inspecting pipes for any defects or sharp edges before working with them is also recommended. Furthermore, working with steel pipes may involve welding or cutting, which can produce sparks, heat, and fumes. It is crucial to work in a well-ventilated area or use proper ventilation equipment to ensure the removal of harmful gases or fumes. Fire safety precautions should also be taken, such as having fire extinguishers nearby and following proper procedures for hot work. Lastly, it is important to be aware of potential hazards associated with working at heights or in confined spaces. When working on elevated platforms or scaffolding, fall protection measures, such as safety harnesses or guardrails, should be in place. In confined spaces, proper ventilation and monitoring for hazardous gases are essential to prevent asphyxiation or exposure to toxic substances. Overall, by following these safety considerations and adhering to proper procedures, the risk of accidents or injuries when working with steel pipes can be significantly reduced.

Q: How are steel pipes used in the construction of dams?: Steel pipes are commonly used in the construction of dams for various purposes such as water diversion, drainage, and foundation reinforcement. They are used to transport water from one area to another, diverting it away from the construction site or controlling its flow within the dam. Steel pipes are also employed for drainage systems to prevent water accumulation and to ensure the stability of the dam structure. Additionally, they play a crucial role in reinforcing the foundation of the dam, providing strength and support to the overall structure.

Q: Can steel pipes be used for geothermal applications?: Yes, steel pipes can be used for geothermal applications. Steel is a durable and strong material that can withstand high temperatures and pressures typically found in geothermal systems. It is commonly used for drilling wells and transporting geothermal fluids, making it a suitable choice for geothermal applications.

Q: How do steel pipes resist corrosion?: Steel pipes resist corrosion through various methods, primarily due to the protective properties of the material itself. Firstly, steel contains a small amount of carbon, which creates a thin, invisible layer on the surface of the pipe known as a passive film. This film acts as a barrier, preventing oxygen and moisture from reaching the underlying steel and thus inhibiting corrosion. Additionally, steel pipes are often coated with protective materials such as zinc, epoxy, or polyethylene, which provide an additional layer of defense against corrosion. Regular maintenance and inspections also play a crucial role in preventing corrosion by identifying and addressing any potential vulnerabilities in the pipes.

Q: What are the common standards for manufacturing steel pipes?: The common standards for manufacturing steel pipes include the American Society for Testing and Materials (ASTM) standards, the International Organization for Standardization (ISO) standards, and the American National Standards Institute (ANSI) standards. These standards cover various aspects such as material composition, mechanical properties, dimensions, testing procedures, and quality control requirements to ensure the consistency and reliability of steel pipes.

Q: What are the different types of steel pipe valves?: Various industries and applications commonly utilize several types of steel pipe valves. Here, we present some of the most frequently used types: 1. Gate valves: These valves control fluid flow by raising or lowering a gate or wedge that obstructs the flow path. They ensure a tight seal when closed and are prevalent in applications requiring complete shut-off or full flow. 2. Globe valves: With a globe-shaped body and a movable plug or disc, these valves regulate fluid flow. They excel in throttling capabilities and find application in situations demanding precise flow control. 3. Ball valves: Fluid flow is managed by a rotating ball with a hole in these valves. Alignment of the hole with the pipe signifies full openness, while a perpendicular hole indicates closure. Ball valves are durable, reliable, and extensively used in swift and effortless shut-off applications. 4. Check valves: These valves allow fluid flow in only one direction, preventing backflow. They are instrumental in safeguarding pumps, compressors, and other equipment from reverse flow-induced damage. 5. Butterfly valves: Butterfly valves feature a rotating disc within the pipe to control fluid flow. They are lightweight, compact, and provide rapid shut-off. Butterfly valves are commonly employed in large-scale applications like water treatment and HVAC systems. 6. Plug valves: By utilizing a cylindrical or conical plug, plug valves regulate flow within the valve body. Their simple design, ease of operation, and dependable shut-off capabilities make them prevalent in applications requiring frequent operation and high pressure ratings. 7. Diaphragm valves: These valves employ a flexible diaphragm to manage fluid flow. Pressing the diaphragm against the valve seat blocks flow, while lifting it allows flow. Diaphragm valves are frequently used in environments requiring sterility or hygiene. These examples illustrate the variety of steel pipe valves available in the market. The choice of valve depends on specific requirements, including flow rate, pressure, temperature, and the nature of the transported fluid.

Q: RC is it welded steel pipe or galvanized steel pipe?: RC pipe is galvanized steel pipe, usually followed by the diameter, such as RC50, that is, 50mm galvanized steel pipe.

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