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: How do steel pipes compare to ductile iron pipes?: Steel pipes and ductile iron pipes have some similarities, such as being durable and strong materials for piping systems. However, there are a few key differences between the two. Steel pipes are typically lighter and more flexible, making them easier to handle and install. They also have a higher resistance to corrosion and can withstand higher pressure and temperature conditions. On the other hand, ductile iron pipes have a higher tensile strength and are more resistant to impact and vibration. Overall, the choice between steel and ductile iron pipes depends on specific project requirements, such as the intended application, location, and budget constraints.

Q: What is the difference between black steel pipes and galvanized steel pipes?: Black steel pipes are made of carbon steel and are typically used in gas or oil lines, while galvanized steel pipes are coated with a layer of zinc to protect against corrosion. Galvanized pipes are commonly used in plumbing systems and outdoor applications.

Q: Are steel pipes fire-resistant?: Yes, steel pipes are fire-resistant. Steel is a non-combustible material, which means it does not burn or contribute to the spread of fire. Steel pipes have high melting points and can withstand extreme temperatures, making them highly resistant to fire. They are commonly used in various applications where fire protection is crucial, such as fire sprinkler systems, fire hydrant systems, and fire-resistant building structures. Additionally, steel pipes are also known for their durability and strength, which further enhances their fire resistance capabilities.

Q: What is the maximum length of steel pipes available?: The maximum length of steel pipes available can vary depending on the specific manufacturer and supplier. However, in general, steel pipes can be found in lengths ranging from 18 feet to 40 feet or even longer.

Q: What's the difference between a cracked carbon steel tube and a liquid carbon steel tube?: Cracking carbon steel pipe higher requirements, the general carbon steel pipe to be normalized, the fluid carbon steel pipe as long as the normal annealing treatment.

Q: How are steel pipes used in the agriculture sector?: Steel pipes are commonly used in the agriculture sector for various purposes, such as irrigation systems, drainage systems, and structural support for farm buildings and infrastructure. They are also used for conveying water, chemicals, and other fluids, as well as for constructing fencing and livestock enclosures. Moreover, steel pipes are utilized in the construction of machinery and equipment essential for farming operations.

Q: How do you connect steel pipes together?: Various industries commonly employ several methods to connect steel pipes together. One frequently utilized technique is welding, which involves the heating of the steel pipe ends and their subsequent joining using a welding rod or wire. This method results in a robust and enduring connection that can withstand high pressures and temperatures. Threading, another method, entails cutting threads into the ends of the steel pipes. These threaded ends can then be screwed together using pipe fittings such as couplings or unions. Threading is particularly advantageous for smaller diameter pipes as it allows for easy disassembly and reassembly. Flanges also serve as a means to connect steel pipes. These flat, circular discs with holes can be bolted together, providing a secure connection. Flanges are especially suitable for large diameter pipes or those that require frequent disconnection for maintenance or repairs. Pipe fittings, such as couplings, tees, elbows, or reducers, can also be employed for connecting steel pipes. These fittings, typically composed of steel or other materials, are designed for welding, threading, or utilizing other connection methods like grooving or compression. It is important to consider various factors, such as pipe size, application, required strength, and adherence to industry standards or codes, when selecting the appropriate method for joining steel pipes. Consulting with a qualified professional or referring to industry-specific guidelines is essential in making this decision.

Q: How do you calculate the flow rate through a steel pipe?: Several factors need to be considered in order to calculate the flow rate through a steel pipe. The crucial factors include the pipe's diameter, the pressure difference across the pipe, and the properties of the fluid flowing through it. Accurate measurement of the inside diameter of the steel pipe is the first step. This measurement is vital as it determines the cross-sectional area through which the fluid flows. Ensure that the units used for the diameter measurement are consistent with the units used for other measurements. Next, determine the pressure difference across the pipe. This can be accomplished by measuring the pressure at two points along the pipe, typically at the inlet and outlet. It is important to take the pressure measurements at the same height in order to avoid any discrepancies. The pressure difference is usually given in units of pressure, such as psi, kPa, or bar. Once you have the diameter and pressure difference, you can utilize either the Bernoulli equation or the Darcy-Weisbach equation to calculate the flow rate. The Bernoulli equation establishes a relationship between the pressure difference and the fluid's velocity. However, this equation assumes ideal conditions and overlooks factors like friction losses, viscosity, and turbulence. On the other hand, the Darcy-Weisbach equation is more accurate as it considers these factors. To employ the Darcy-Weisbach equation, you must be aware of the fluid's properties that flow through the pipe, such as density and viscosity. These properties can be determined either through experimentation or by referring to literature values. After gathering all the necessary information, you can use the Darcy-Weisbach equation: Q = (π/4) * D^2 * √[(2 * ΔP) / (ρ * f * L)] Where: Q represents the flow rate, measured in cubic meters per second or any other consistent units. D is the diameter of the pipe, measured in meters or any other consistent units. ΔP is the pressure difference across the pipe, measured in Pascals or any other consistent units. ρ is the density of the fluid flowing through the pipe, measured in kilograms per cubic meter or any other consistent units. f signifies the friction factor, which relies on the Reynolds number and the roughness of the pipe. L represents the length of the pipe, measured in meters or any other consistent units. By substituting the appropriate values for all the variables, you can accurately calculate the flow rate through the steel pipe.

Q: Is there any difference between thermal expansion seamless steel pipe and seamless steel pipe?: Differ,Thermal expansion seamless steel tube is what we often call "thermal expansion tube", the density is relatively low, but a strong contraction of the steel pipe, (seamless steel pipe) can be referred to as "heat expansion.". A finishing rolling process for pipe rolling by using oblique rolling or drawing method to enlarge pipe diameter. In a relatively short period of time, the outer diameter of the steel pipe becomes larger, and the seamless tube with nonstandard and special type can be produced, and the cost is lower and the production efficiency is high, which is the development trend of the international rolling tube field at present.

Q: What are the advantages of using steel pipes over other materials like PVC or copper?: There are several advantages of using steel pipes over other materials like PVC or copper. Firstly, steel pipes have superior strength and durability, making them suitable for high-pressure applications and extreme weather conditions. Secondly, steel pipes have excellent corrosion resistance, ensuring a longer lifespan compared to PVC or copper. Additionally, steel pipes offer better fire resistance, making them safer for certain applications. Lastly, steel pipes have higher thermal conductivity, allowing for efficient heat transfer.

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