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: What are the different methods of pipe cutting for steel pipes?: There are several methods of pipe cutting for steel pipes, each suited for different situations and requirements. Some of the most common methods include: 1. Manual Pipe Cutters: These handheld tools are commonly used for cutting smaller diameter steel pipes. They typically feature a cutting wheel that is rotated around the pipe, gradually creating a groove until the pipe is cut through. Manual pipe cutters are portable and relatively easy to use, making them suitable for on-site cutting tasks. 2. Hacksaw: Using a hacksaw is a traditional and cost-effective method for cutting steel pipes. This method requires physical effort and time, but it can be effective for cutting pipes with smaller diameters. It is important to use a fine-toothed blade and apply steady pressure to ensure a clean and precise cut. 3. Reciprocating Saw: Also known as a sawzall, a reciprocating saw is a power tool that uses a back-and-forth cutting motion to quickly and efficiently cut through steel pipes. These saws are versatile and can be used with different types of blades to handle different pipe sizes and thicknesses. 4. Band Saw: Band saws are commonly used in industrial settings for cutting large steel pipes. These saws feature a continuous loop of teethed metal blade that runs on wheels, allowing for precise and rapid cutting. Band saws are ideal for cutting large-diameter pipes and can be manually operated or fully automated for high-volume cutting tasks. 5. Pipe Cutting Machines: To achieve accurate and consistent cuts, pipe cutting machines are often used. These machines are designed to cut steel pipes with speed and precision, making them ideal for large-scale industrial applications. Depending on the specific machine and requirements, different cutting methods such as abrasive cutting, flame cutting, or plasma cutting can be employed. It is important to note that the choice of pipe cutting method depends on factors such as pipe diameter, thickness, location, precision requirements, and available resources. Proper safety precautions should always be followed when working with any cutting method to avoid injury or damage to the pipes.

Q: How are steel pipes threaded for connection?: Steel pipes are threaded for connection using a process called threading, which involves cutting helical grooves into the pipe's surface. This is typically done using a machine called a pipe threading machine, which rotates the pipe while a cutting tool is held against it, creating the desired threading pattern. The threaded ends of the pipes can then be connected using fittings or couplings to create a secure and leak-proof joint.

Q: Can steel pipes be used for roller coaster tracks?: Yes, steel pipes can be used for roller coaster tracks. In fact, they are one of the most common materials used for roller coaster tracks due to their strength, durability, and versatility. Steel pipes provide excellent support and stability for the roller coaster cars, ensuring a safe and thrilling ride experience for passengers. Additionally, steel pipes can be easily shaped and welded to create various track designs, including loops, twists, and turns, making them ideal for creating exhilarating roller coaster layouts. Furthermore, steel pipes are resistant to corrosion and can withstand harsh weather conditions, making them a reliable choice for outdoor roller coasters. Overall, steel pipes are a popular and reliable choice for roller coaster tracks, offering both safety and excitement for riders.

Q: Are steel pipes suitable for use in coastal areas?: Yes, steel pipes are suitable for use in coastal areas. Steel is highly durable and resistant to corrosion, making it an ideal choice for withstanding the harsh conditions typically found in coastal environments, such as saltwater, high humidity, and strong winds. Additionally, steel pipes offer excellent strength and stability, ensuring their longevity and reliability in coastal applications.

Q: What is the minimum wall thickness for steel pipes?: The minimum wall thickness of steel pipes varies depending on different factors, including the pipe's intended use and the specific industry standards and regulations. Determining the minimum wall thickness generally involves considering factors like the pipe's diameter, material strength, and the pressure or load it will experience during operation. In the oil and gas industry, for instance, the minimum wall thickness for steel pipes is typically specified by industry standards such as API 5L or ASME B31.3. These standards take into account elements such as the pipe's diameter, the material's yield strength, and the maximum pressure it will encounter. In other applications, such as structural or mechanical engineering, the minimum wall thickness for steel pipes is determined by factors like the pipe's intended load-bearing capacity, the desired safety factor, and any relevant building codes or regulations. To establish the specific minimum wall thickness requirements for steel pipes in a particular application, it is essential to consult the appropriate industry standards, codes, or regulations.

Q: Heating system DN40 and DN32 welded steel pipe how to connect?: As for the flange connection: low pressure pipeline is generally not used in this way, can be divided into threaded flanges and flange welding flange, and the flange connecting pipes of different diameters, only the welded flange to diameter, said in a low pressure pipeline which has low pressure pipe connection make an unnecessary move, this is not much, but there are also people with non the standard flange for connecting different pipe diameter, which is not consistent with the technical specification!

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: How do steel pipes withstand high pressure and temperature?: Steel pipes are designed to withstand high pressure and temperature due to their inherent strength and durability. The composition of steel, with its high tensile strength and resistance to deformation, allows it to maintain its structural integrity even under extreme conditions. Additionally, steel pipes are often manufactured with thicker walls and reinforcement techniques to further enhance their ability to withstand pressure and temperature.

Q: What are the environmental impacts of steel pipe production and disposal?: The environmental impacts of steel pipe production and disposal are mainly related to the extraction and processing of raw materials, energy consumption, greenhouse gas emissions, and waste generation. The production of steel pipes requires the extraction of iron ore and other raw materials, which can lead to habitat destruction and biodiversity loss. The processing and manufacturing of steel pipes also involve significant energy consumption, contributing to carbon dioxide emissions and climate change. Additionally, the disposal of steel pipes, especially if not properly managed, can result in waste accumulation and potential soil and water pollution. Therefore, it is crucial to consider sustainable practices and recycling options to minimize the environmental impacts associated with steel pipe production and disposal.

Q: What does carbon seamless steel pipe mean? What is the difference between a seamless 20# and an ordinary one? What is it used in detail?: Carbon steel is actually relative to alloy steel, mainly carbon content, and 20# seamless steel is carbon steel! In addition, there are stainless steel, stainless steel is considered a kind of alloy steel, but the processing is not the same, the performance is not the same, good looking outside!The description of the material in alloy steel is actually the content of the metal elements in the steel (usually the percentage number).

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