Schedule 40 Seamless Carbon Steel Pipe API N80 CNBM

Schedule 40 Seamless Carbon Steel Pipe API N80 CNBM System 1

Schedule 40 Seamless Carbon Steel Pipe API N80 CNBM System 2

Schedule 40 Seamless Carbon Steel Pipe API N80 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 is the difference between API 5L and ASTM A53 steel pipes?: API 5L and ASTM A53 are widely utilized carbon steel pipe standards with similar purposes but notable distinctions. 1. In terms of scope, API 5L pertains to seamless and welded pipes for transporting oil, gas, water, and other fluids. It encompasses plain-end, threaded-end, and belled-end pipe types. Conversely, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes utilized in mechanical and pressure applications. 2. The manufacturing processes differ, as API 5L pipes undergo hot-rolling, while ASTM A53 pipes undergo either hot-rolling or cold-drawing. This variance affects the chemical composition and mechanical properties of the pipes. 3. Generally, API 5L pipes have a higher carbon content compared to ASTM A53 pipes. This discrepancy arises from the intended use of API 5L pipes for conveying oil, gas, and water, necessitating greater strength and durability. On the other hand, ASTM A53 pipes cater to mechanical and pressure applications, where lower carbon content is deemed appropriate. 4. API 5L pipes exhibit higher minimum yield strength and tensile strength than ASTM A53 pipes. This outcome stems from the increased carbon content and more stringent manufacturing process employed for API 5L pipes. Conversely, ASTM A53 pipes possess lower yield and tensile strength requirements, rendering them more suitable for general-purpose applications. 5. API 5L pipes offer various coating options, including black varnish, 3PE, FBE, among others, depending on the specific application requirements. In contrast, ASTM A53 pipes are typically hot-dipped galvanized to enhance corrosion resistance. In conclusion, API 5L and ASTM A53 steel pipes differ in scope, manufacturing processes, chemical compositions, mechanical properties, and coating options. The appropriate choice of pipe hinges upon specific application requirements, such as the nature of the conveyed fluid, operating conditions, and desired strength and durability.

Q: How are steel pipes used in the manufacturing of shipbuilding and offshore structures?: Steel pipes are a necessity when it comes to manufacturing shipbuilding and offshore structures. Their strength, durability, and resistance to corrosion make them the perfect choice for the challenging marine environment. When it comes to shipbuilding, steel pipes serve various purposes. They are primarily used in constructing the hull, which provides structural support to the ship. Steel pipes are responsible for forming the keel and frames, ensuring the hull's shape and strength. By welding these pipes together, a strong and rigid structure is created, capable of withstanding the forces experienced during navigation. Additionally, steel pipes find use in constructing different systems aboard the ship. They are essential components of the piping system, responsible for transporting fluids like fuel, water, and oil throughout the vessel. Furthermore, steel pipes contribute to the ventilation and air conditioning systems, guaranteeing proper airflow and temperature control within the ship. In offshore structures, such as oil rigs and platforms, steel pipes play a vital role. These structures endure extreme environmental conditions, including severe weather, high pressure, and corrosive saltwater. Steel pipes are instrumental in fabricating load-bearing components like legs and risers. Their strength and stability allow the structure to withstand the forces of waves, wind, and drilling operations. Moreover, steel pipes are crucial in constructing subsea pipelines. These pipelines facilitate the transportation of oil, gas, and other fluids from offshore drilling sites to onshore facilities. Steel pipes are preferred due to their high tensile strength and ability to withstand the high pressure and corrosive conditions found in subsea environments. Overall, steel pipes are indispensable in the manufacturing of shipbuilding and offshore structures. Their exceptional strength, durability, and corrosion resistance make them the preferred choice for constructing hulls, systems, and load-bearing components. Without steel pipes, the construction of ships and offshore structures would compromise safety, reliability, and longevity.

Q: What are the different types of steel pipe connections for oil and gas pipelines?: There are several different types of steel pipe connections used for oil and gas pipelines, including threaded connections, welded connections, flanged connections, and grooved connections. Each type has its own advantages and is selected based on factors such as the size of the pipeline, the pressure and temperature requirements, and the specific application.

Q: How do steel pipes perform in extreme weather conditions?: Steel pipes perform well in extreme weather conditions due to their high strength, durability, and resistance to corrosion. They can withstand extreme temperatures, heavy winds, and harsh climates, making them a reliable choice for various industries and applications.

Q: What is the creep resistance of steel pipes?: The creep resistance of steel pipes refers to their ability to withstand deformation or strain under long-term exposure to high temperatures and constant stress. Steel pipes exhibit good creep resistance due to their high melting point and structural integrity, making them suitable for applications that involve elevated temperatures and prolonged use.

Q: What is ND steel pipe?: ND steel also has the ability to resist chloride ion corrosion. ND steel pipe, the main reference indicators (70 degrees Celsius, 50%H2SO4 solution immersion 24 hours), and carbon steel, Japan imported similar steel, stainless steel corrosion resistance compared to higher than these steel grades. Products by domestic refineries and manufacturing units after the use of widely acclaimed, and achieved good results.

Q: What is the difference between steel pipes and cast iron soil pipes?: Steel pipes and cast iron soil pipes are both used for plumbing and drainage systems, but they differ mainly in their material composition and durability. Steel pipes are typically made from an alloy of iron and carbon, which provides them with high strength and resistance to corrosion. On the other hand, cast iron soil pipes are made solely from iron, making them more susceptible to rust and corrosion over time. Additionally, steel pipes are generally lighter, easier to handle, and more flexible than cast iron soil pipes. However, cast iron soil pipes are known for their superior soundproofing properties, making them a preferred choice in buildings where noise reduction is crucial.

Q: What are the common maintenance practices for steel pipes?: Common maintenance practices for steel pipes include regular inspections, cleaning, and corrosion prevention. Regular inspections are crucial to identify any signs of damage or wear. This can involve visual inspections, as well as non-destructive testing methods such as ultrasonic testing or magnetic particle inspection. Inspections should be carried out on a scheduled basis to ensure any issues are detected early on and can be addressed promptly. Cleaning is another important maintenance practice for steel pipes. This involves removing any dirt, debris, or scale that may accumulate both on the inside and outside of the pipes. Regular cleaning helps to prevent blockages, improve flow efficiency, and reduce the risk of corrosion. Corrosion prevention is a key aspect of maintaining steel pipes. Various methods can be employed to protect the pipes from corrosion, such as applying protective coatings, using cathodic protection systems, or implementing corrosion inhibitors. These measures help to extend the lifespan of the pipes and ensure their structural integrity over time. Other maintenance practices may include repairing or replacing damaged sections of the pipes, maintaining proper insulation to prevent heat loss or gain, and monitoring the pipes for any signs of leakage or pressure drops. Overall, regular inspections, cleaning, and corrosion prevention are essential maintenance practices for steel pipes. By implementing these practices, the lifespan of the pipes can be prolonged, and potential issues can be identified and addressed before they cause significant damage or disruptions.

Q: Can steel pipes be used for underground drainage?: Yes, steel pipes can be used for underground drainage. Steel pipes are commonly used for drainage systems due to their durability, strength, and resistance to corrosion. They are able to withstand heavy loads and can be installed in various soil conditions. However, it is important to ensure proper coating and maintenance to prevent rusting and deterioration over time.

Q: Are steel pipes suitable for underground nuclear waste storage?: Underground nuclear waste storage does not lend itself to the use of steel pipes due to their unsuitability. Despite their strength and durability, steel pipes are susceptible to corrosion when in contact with certain forms of nuclear waste. As time passes, the radioactive elements can corrode the steel pipes, potentially leading to leaks and the contamination of the surrounding environment. Furthermore, steel pipes lack the necessary design to endure the extreme temperatures and pressures commonly found in nuclear waste storage facilities. Consequently, alternative materials like corrosion-resistant alloys or concrete are generally employed for underground nuclear waste storage to guarantee the confinement and isolation of hazardous substances.

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