Schedule 40 Seamless Carbon Steel Pipe A335P91 CNBM

Schedule 40 Seamless Carbon Steel Pipe A335P91 CNBM System 1

Schedule 40 Seamless Carbon Steel Pipe A335P91 CNBM

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 30 pc/month

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Quick Details

Thickness:	1.73 - 59.54 mm	Section Shape:	Round	Outer Diameter:	10.3 - 914.4 mm
		Secondary Or Not:	Non-secondary	Application:	Fluid Pipe
Technique:	Hot Rolled	Certification:	API	Surface Treatment:	Galvanized,vanish covering, black painting, galvenized ect.
Special Pipe:	API Pipe	Alloy Or Not:	Non-alloy	Length:	5-12m as per customer's requirements
SCH:	SCH10~160, STD, XS & XXS	Payment Terms:	L/C T/T	Supply Ability:	5000 Ton/Tons per Week
Product:	pipe prices	Grade:	10#,20#,45#,A106(B,C),A53(A,B),12Cr1MoV,12Cr1MoVG,12Cr2Mo,13CrMo44,13CrMo45,15CrMo,15CrMoG,St52,St52.4,10#-45#,A53-A369,Cr-Mo alloy,ST35-ST52	Standard:	API 5CT,API 5L,ASTM A106-2006,ASTM A53-2007,DIN 17175,GB 3087-1999,GB 5130,GB 6479-2000,GB 9948-2006,GB/T 17396-1998,GB/T 5312-1999,GB/T 8162-1999,GB/T 8163-1999,API,ASTM,DIN,GB

Packaging & Delivery

Packaging Detail:	By bundles, seaworthy wooden cases, steel framed cases, and simple packaging or according to the demand of the customers.
Delivery Detail:	within 5-15 days

Specifications

1.pipe prices
2.Supply Ability:5000 Tons per Week
3.Payment Terms:L/C T/T

High quality Carbon steel pipe, Best pipe prices

1) Application: Overheat pipe for low and mediumpressure boiler,boiling water pipe, locomotive smoke pipe(big and small),Carry gas ,water or oil in the industries of petroleum and natural gas etc
2) Materials: 10#, 20#, 45#, 15CrMo, 12Cr1MoV, 13CrMo44, 12Cr2Mo, 13CrMo45, 12Cr1MoVG, 15CrMoG, API J55, API K55, API N80, API L80, API P110

3)Pipe according to standard: GB 3087-1999, GB/T 8163-1999, GB/T 8162-1999, GB 9948-2006, GB/T 17396-1998, GB/T 5312-1999, GB 6479-2000, GB 5130, DIN 17175, API 5CT, API 5L .

4)Packing: By bundles, seaworthy wooden cases, steel framed cases, and simple packaging or according to the demand of the customers.

Technical Parameters of Seamless Steel Pipe

schedule 40 seamless carbon steel pipe

Q:What are the different methods of non-destructive testing for steel pipes?: There are several methods of non-destructive testing for steel pipes, including ultrasonic testing, magnetic particle testing, liquid penetrant testing, radiographic testing, and eddy current testing. These methods help to detect any defects or anomalies in the pipes without causing any damage, ensuring their structural integrity and reliability.

Q:What are the limitations of using steel pipes?: There are several limitations to using steel pipes in various applications. Firstly, steel pipes can be quite expensive compared to other materials such as plastic or copper. This cost factor can be a significant limitation for projects with tight budgets. Secondly, steel pipes are susceptible to corrosion. Over time, exposure to moisture and certain chemicals can cause steel pipes to rust and deteriorate. This can lead to leaks, reduced structural integrity, and ultimately, the need for costly repairs or replacement. Another limitation of steel pipes is their weight and rigidity. Steel pipes are generally heavier and less flexible than other types of pipes, making them more challenging to install and maneuver in certain settings. Additionally, their rigid nature makes them less suitable for applications that require significant movement or flexibility. Furthermore, steel pipes can be prone to thermal expansion and contraction. When exposed to extreme temperatures, steel pipes can expand or contract, potentially causing stress on joints, fittings, or other components. This can lead to leaks or even pipe failure if not properly accounted for. Lastly, steel pipes are not as resistant to certain chemicals or substances as other materials. Some chemicals can corrode or erode the inner lining of steel pipes, compromising their integrity and potentially causing contamination or leakage. While steel pipes have many advantages, it is important to consider these limitations when deciding on the most suitable material for a specific application.

Q:What are the factors to consider when selecting steel pipes for a project?: When selecting steel pipes for a project, there are several factors to consider. These include the pipe's diameter, thickness, and length, as well as its intended use and the specific requirements of the project. Other important factors to consider are the type of steel used, its corrosion resistance, strength, and durability. Additionally, factors such as cost, availability, and environmental impact should also be taken into account. By considering these factors, you can ensure that the selected steel pipes meet the project's needs and perform effectively.

Q:Can steel pipes be used for underground drainage?: Yes, steel pipes can be used for underground drainage. Steel pipes are commonly used for underground drainage systems due to their durability, strength, and resistance to various elements, such as soil erosion, chemical corrosion, and high pressure. However, it is important to consider factors like the type of soil, environmental conditions, and the specific requirements of the drainage system before deciding on the material for underground drainage pipes.

Q:How are steel pipes installed underground?: Steel pipes are installed underground through a process called trenchless installation or open trench excavation. In trenchless installation, a drilling machine creates a tunnel underground, and the steel pipes are then inserted into the tunnel using a technique called pipe jacking or horizontal directional drilling. In open trench excavation, a trench is dug, and the steel pipes are laid in the trench before being covered with backfill material.

Q:What are the different methods of joining steel pipes for high-pressure applications?: The different methods of joining steel pipes for high-pressure applications include welding, threaded connections, flanged connections, and grooved connections. Welding involves fusing the ends of the pipes together using heat, creating a strong and leak-proof joint. Threaded connections involve screwing the pipes together, using threads on the ends of the pipes and pipe fittings. Flanged connections involve using flanges, which are flat, circular discs with bolt holes, to connect the pipes together. Grooved connections involve using grooved couplings that grip the ends of the pipes and are secured with bolts, creating a reliable and easy-to-install joint.

Q:How are steel pipes insulated against heat loss?: There are multiple ways to insulate steel pipes to prevent heat loss. One widely used method involves utilizing insulation materials like mineral wool or fiberglass wraps. These materials are wrapped around the pipes, forming a barrier that reduces heat transfer. Another approach involves directly applying insulation coatings like foam or rubber coatings onto the pipe's surface. These coatings create a protective layer that minimizes heat loss. Additionally, thermal tape or heat-resistant tape can be employed to seal any gaps or joints in the insulation, ensuring a continuous barrier against heat loss. In summary, effectively insulating steel pipes is crucial to maintaining the desired temperature of the fluid or gas being transported and enhancing energy efficiency across diverse industries.

Q:Can steel pipes be used for underground water lines?: Yes, steel pipes can be used for underground water lines. Steel pipes are commonly used for water distribution systems as they are durable, strong, and resistant to corrosion. However, it is important to consider the specific conditions and requirements of the project, as other types of pipes such as PVC or HDPE may be more suitable in certain situations. Proper coating and insulation should also be applied to steel pipes to protect against underground environmental factors.

Q:What are the different methods of repairing steel pipes?: There are several methods for repairing steel pipes, including welding, pipe wrapping, pipe lining, and pipe bursting. Welding involves fusing the damaged sections of the pipe using heat and pressure. Pipe wrapping involves using a fiberglass or epoxy resin wrap to reinforce and seal the damaged areas. Pipe lining involves inserting a new pipe into the damaged one, creating a seamless and corrosion-resistant inner lining. Pipe bursting involves replacing the damaged pipe by using a bursting head to break it apart while simultaneously pulling a new pipe into place. The choice of method depends on the nature and extent of the damage, as well as other factors such as cost and accessibility.

Q:How are steel pipes resistant to corrosion?: Steel pipes are resistant to corrosion due to a combination of factors. Firstly, steel pipes are often coated with a protective layer, such as zinc or epoxy, which acts as a barrier between the steel and the surrounding environment. This coating prevents moisture and other corrosive substances from coming into contact with the steel, reducing the chances of corrosion. Additionally, the composition of steel itself plays a role in its corrosion resistance. Steel is primarily made up of iron, with small amounts of other elements added to enhance its strength and durability. These elements, such as chromium and nickel, create a protective oxide layer on the surface of the steel. This oxide layer acts as a natural barrier, preventing the underlying steel from being exposed to moisture and oxygen, which are key contributors to corrosion. Furthermore, steel pipes can be treated through a process called galvanization, where a layer of zinc is applied to the surface. This zinc coating provides an extra layer of protection against corrosion, as zinc is highly resistant to rust and oxidation. The zinc sacrificially corrodes instead of the steel, further extending the lifespan of the pipe. Overall, the combination of protective coatings, the composition of steel, and galvanization processes all contribute to the corrosion resistance of steel pipes. This makes them highly durable and suitable for various applications, including plumbing, construction, and transportation of fluids and gases.

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