Seamless Hot Rolled Steel Pipe > 114.3

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: -

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Specifications

1. OD 21MM-1066MM, WT 2MM-60MM
2. certificate: ISO, API
3. Strength: large diameter thick wall seamless pipe
4. BE, PE.

Carbon Steel Seamless Pipes
OD	21.3mm-1066.8mm(1/2”-42”)
WT	2mm-60mm
Length	Random Length: 3.5m-12m, or fixed length 5.8m or as the customer’s requirement.
Standard	ASTM A53, ASTM A106, API 5L, DIN 17175, GOST8731/8732, G3457/G3452 etc.
Material	Q235B, 10#,20#,45#, 16Mn, 15MnV. A53B, A106B, API5L B, A192, A179C, A213-T12, A213-T22, A335-P1, A335-P2, A333 ST37, ST33, ST37-2, ST35.8 ST42 etc.
Certificate	API certificate and ISO certificate.
Surface	Rust remove, black painting, antirust oil, varnish, 3PE, hot-dip galvanized etc.
Package	By bundles, plastic caps or steel caps, woven, wooden cases or as requirement.
Capability	6000tons/month.
End	BE/PE.
Advantage	Big diameter and thick wall pipes. Best price with good quality. The partner you can trust. Good service and very patient.

Seamless steel pipe
Alloy pipe	Cr5Mo(P5, STFA25, T5) 15CrMo(P11, P12, STFA22) 13CrMo44 12Cr1MoV P22 (10CrMo 910) T91, P91, P9, T9 Wb36	GB5310-95 GB9948-88 ASTM335/A335M ASTM213/213M DIN17175-79 JISG3467-88 JISG3458-88	*16-8242-100**	The seamless steel pipe features resistance to high pressure, high/low temperature and corrosion and is used in the industries of petroleum, chemical engineering and electric power as well as boiler
High-pressure boiler pipe	20G, A106, ST45.8/	GB5310-95 ASTMA106-99 DIN17175-79	*14-6302-80**	Temperature-resistant seamless steel pipe for high-pressure boiler
High-pressure seamless pipe for petroleum cracking and fertilizer making equipments	20, 12CrMo, 15CrMo	GB9948-88	*10-5301.5-36**	Boiler price for refinery, heat-exchanging pipe, seamless steel pipe for pipeline
	20, 16Mn, Q345	GB6479-2000	*18-5303-40**	Fertilizer making equipment and pipe line
Low and medium pressure boiler pipes	10, 20	GB3087-1999	*10-5302-40**	Over-heat pipe for low and medium-pressure boiler, boiling water pipe, locomotive smoke pipe(big and small)
Fluid pipe	20, Q345	GB/T8163-1999	*8-6301.0-40**
Structural pipe	10,20,35,45, 16Mn, Q345B	GB/T8162-1999	*6-10201.5-100**
Line pipe	Grade B	API	*60-6301.5-40**	Carrying gas, water or oil in the industries of petroleum and natural gas
Hydraulic prop pipe	27SiMn	GB/T17396-1998	*70-3779-40**
Ship pipe	410	GB/T5312-1999	*14-4261.5-45**	Pipes for ship, boiler and over-heater

FAQ of Seamless 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. 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.

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.

‍‍Seamless Pipe Images：

Seamless Hot Rolled Steel Pipe > 114.3

Q:How are steel pipes connected in pipeline construction?: Steel pipes are connected in pipeline construction through various methods such as welding, threading, and flanging. Welding involves joining the pipes using heat and fusion, creating a strong and durable connection. Threading involves screwing two pipes together using threads on the ends of the pipes. Flanging involves connecting the pipes by bolting together flanges on the ends of each pipe. These connection methods ensure a secure and leak-proof pipeline system.

Q:What are the common sizes of steel pipes?: The common sizes of steel pipes vary widely, but some common diameters range from 1/8 inch to 36 inches, with wall thicknesses typically ranging from Schedule 10 to Schedule 160.

Q:What's the use of steel pipe?: (processing workshop of Tianjin steel pipe company as a result of the steel pipe truss structure, the actual steel saving up to 42.9%), with a steel pipe manufacturing highway bridge can not only save steel, simplify the construction, but also can greatly reduce the coated area, saving investment and maintenance costs.

Q:How are steel pipes used in railway infrastructure?: Steel pipes are used in railway infrastructure for a variety of purposes. They are primarily used for constructing and maintaining railway tracks, as they serve as the support structure for the rails. Steel pipes are also used for the fabrication of various components such as bridges, signal systems, and overhead power lines. Additionally, steel pipes are utilized in the construction of tunnels, culverts, and drainage systems to ensure proper water management along the railway lines.

Q:Are steel pipes suitable for potable water systems?: Yes, steel pipes are suitable for potable water systems. Steel pipes are commonly used in potable water systems due to their strength, durability, and resistance to corrosion. They can withstand high pressure and are able to carry large volumes of water. Additionally, steel pipes can be easily welded together, making them a versatile choice for various applications in potable water systems. However, it is important to note that proper maintenance and regular inspections are necessary to prevent any potential issues such as rust or contamination.

Q:How do steel pipes perform in high-temperature environments?: Steel pipes perform well in high-temperature environments due to their inherent strength and heat resistance. They can withstand extreme temperatures without losing their structural integrity or deforming, making them suitable for various industrial applications such as steam pipelines, power plants, and refineries. The high melting point of steel allows it to maintain its mechanical properties even at elevated temperatures, ensuring reliable and efficient operation in high-temperature environments.

Q:Can steel pipes withstand high temperatures?: Yes, steel pipes can withstand high temperatures. Steel is known for its excellent thermal conductivity and high melting point, making it suitable for various applications that involve exposure to elevated temperatures.

Q:How are steel pipes used in the construction of underground utilities?: Steel pipes are commonly used in the construction of underground utilities due to their strength, durability, and resistance to corrosion. These pipes are typically used for water and gas distribution systems, as well as for sewer and drainage systems. The steel pipes are laid underground, serving as reliable conduits for the transportation of essential utilities to homes, businesses, and other structures.

Q:Can steel pipes be threaded?: Yes, steel pipes can be threaded. Threading is a common process used to create a screw-like pattern on the outer surface of the pipe, allowing it to be connected to other fittings or components. Threading can be done manually or with the help of machinery, depending on the size and requirements of the pipe.

Q:How are steel pipes protected against soil movement or settlement?: Various methods can be employed to safeguard steel pipes against soil movement or settlement. One prevalent approach involves the utilization of protective coatings on the pipes, which act as a barrier between the steel and the soil. By preventing direct contact and reducing the chance of corrosion, these coatings offer effective protection. Epoxy, polyethylene, and zinc are among the coatings commonly employed for this purpose. Another method entails the implementation of cathodic protection. This technique involves the installation of sacrificial anodes along the pipeline. These anodes corrode instead of the steel pipes, thus shielding them from potential harm caused by soil movement or settlement. Furthermore, ensuring proper design and installation techniques is crucial for protecting steel pipes in these scenarios. Engineers must take into account factors such as soil composition, slope stability, and the likelihood of ground movement when designing the pipeline route. Additionally, employing appropriate trenching and bedding techniques guarantees adequate support and protection against settlement. Regular inspection and maintenance play a crucial role in protecting steel pipes against soil movement or settlement. By monitoring the condition of the pipeline, including the protective coatings and cathodic protection systems, potential issues can be identified promptly, allowing for timely repairs or replacements. In conclusion, a combination of protective coatings, cathodic protection, proper design and installation techniques, and regular maintenance effectively safeguards steel pipes from soil movement or settlement.

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