Seamless Carbon Steel Pipe 3/4"-4" System 1

Seamless Carbon Steel Pipe 3/4"-4"

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1、Structure of Seamless Pipe :

Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

2、‍‍Main Features of the Seamless Pipe :

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price

3、Seamless Pipe Specification：

Standard	GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007
Grade	10#-45#, 16Mn 10#, 20#, 45#, 16Mn
Thickness	8 - 33 mm
Section Shape	Round
Outer Diameter	133 - 219 mm
Place of Origin	Shandong, China (Mainland)
Secondary Or Not	Non-secondary
Application	Hydraulic Pipe
Technique	Cold Drawn
Certification	API
‍Surface Treatment	factory state or painted black
‍Special Pipe	API Pipe
Alloy Or Not	Non-alloy
Length	5-12M
Outer Diameter	21.3-610mm
Grade	20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B
Standard	ASME, ASTM

Models of Steel Pipes	Chemical Component
Steel 20 (ASTM A106B)	C	Si	Mn	P	S	Cu	Ni	Cr
Steel 20 (ASTM A106B)	0.17~0.24	0.17~0.37	0.35~0.65	0.035max	0.035max	0.25max	0.25max	0.25max
Steel45 (ASTM 1045)	0.42~0.50	0.17~0.37	0.50~0.80	0.035max	0.035max	0.25max	0.25max	0.25max
16Mn(Q345B)	0.12~0.20	0.20~0.55	1.20~1.60	0.035max	0.035max	0.25max	0.25max	0.25max
45Mn2 ( ASTM1345)	0.42~0.49	0.17~0.37	1.40~1.80	0.035max	0.035max	0.3max	0.3max	0.30max

4、Packaging & Delivery

Packaging Details:	seaworthy package,bundles wrapped with strong steel strip
Delivery Detail:	15-30days after received 30%TT

5、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. 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 !

6、‍‍Seamless Pipe ASTM A106/53 Images：

Seamless Carbon Steel Pipe 3/4"-4"

Q: Can steel pipes be used for chemical refineries?: Yes, steel pipes can be used for chemical refineries. Steel pipes are commonly used in chemical industries due to their high strength, durability, and resistance to corrosion. They can withstand high pressure and temperature conditions, making them suitable for transporting various chemicals and fluids within a refinery. Additionally, steel pipes can be easily welded, ensuring a secure and leak-proof system in chemical refineries.

Q: How are steel pipes used in wastewater treatment?: The wastewater treatment process relies heavily on the use of steel pipes. These pipes are crucial for the transportation and distribution of wastewater from various sources to the treatment facilities. The decision to use steel pipes is primarily based on their durability, strength, and resistance to corrosion. Within wastewater treatment plants, steel pipes are commonly applied for multiple purposes. Firstly, they are utilized for the intake of raw wastewater. These pipes are typically designed with a large diameter to accommodate the high flow rate of incoming wastewater. Due to their ability to withstand the pressure and turbulence caused by the wastewater flow, steel pipes are an ideal choice for this task. Once inside the treatment facility, steel pipes are responsible for the transportation of the wastewater to different treatment processes. They serve as connectors between various units, such as screens, grit chambers, sedimentation tanks, and biological reactors. Steel pipes are preferred for these applications because they can handle the corrosive elements present in wastewater, including chemicals, acids, and gases. Moreover, their durability ensures a long-lasting service life, resulting in reduced maintenance and replacement costs. Steel pipes also play a significant role in the distribution of treated water during the wastewater treatment process. After the wastewater has undergone treatment, it goes through disinfection and other processes to eliminate harmful contaminants. The treated water is then distributed through steel pipes, allowing it to be reused for purposes such as irrigation, industrial processes, or discharged back into water bodies. Furthermore, steel pipes are employed in the construction of wastewater treatment infrastructure. They are used in the installation of underground sewer lines, pumping stations, and manholes. Steel pipes provide the necessary strength and stability to withstand external forces like the weight of the soil. To summarize, steel pipes are crucial components in the wastewater treatment process. They are responsible for the transportation and distribution of wastewater, connecting different treatment units, and distributing treated water. Their durability, resistance to corrosion, and ability to handle high-pressure flows make them an excellent choice for this demanding application.

Q: Can steel pipes be used for natural gas distribution?: Yes, steel pipes can be used for natural gas distribution. Steel pipes are commonly used for this purpose due to their durability, strength, and ability to withstand high pressure and extreme temperatures. Additionally, steel pipes are resistant to corrosion, making them suitable for transporting natural gas over long distances.

Q: How do you select the right size of steel pipe for a project?: To select the right size of steel pipe for a project, one must consider factors such as the intended purpose, the flow rate or pressure requirements, the material being transported, and any applicable building codes or regulations. Consulting engineering specifications, pipe size charts, and professional advice can help in determining the appropriate size that will meet the project's requirements and ensure optimal performance and safety.

Q: What are the common protective coatings used on the inner surface of steel pipes?: The common protective coatings used on the inner surface of steel pipes include epoxy, polyurethane, and cement mortar coatings. These coatings provide corrosion resistance, prevent the formation of scales, and improve the durability and lifespan of the pipes.

Q: How do you calculate the flow rate through a steel pipe?: To calculate the flow rate through a steel pipe, you need to consider several factors. The most important ones are the diameter of the pipe, the pressure difference across the pipe, and the properties of the fluid flowing through it. Firstly, measure the inside diameter of the steel pipe accurately. This measurement is essential as it determines the cross-sectional area through which the fluid flows. The units for the diameter should be consistent with the units used for other measurements. Next, determine the pressure difference across the pipe. This can be done by measuring the pressure at two points along the pipe, typically at the inlet and outlet. The pressure measurements should be taken at the same height 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 use the Bernoulli equation or the Darcy-Weisbach equation to calculate the flow rate. The Bernoulli equation relates the pressure difference to the velocity of the fluid. However, this equation assumes ideal conditions, neglecting factors such as friction losses, viscosity, and turbulence. The Darcy-Weisbach equation is more accurate and considers these factors. To use the Darcy-Weisbach equation, you need to know the properties of the fluid flowing through the pipe, such as its density and viscosity. These properties can be determined either through experimentation or by referring to literature values. Once you have all the necessary information, you can use the Darcy-Weisbach equation: Q = (π/4) * D^2 * √[(2 * ΔP) / (ρ * f * L)] Where: Q is the flow rate (in cubic meters per second or any other consistent units) D is the diameter of the pipe (in meters or any other consistent units) ΔP is the pressure difference across the pipe (in Pascals or any other consistent units) ρ is the density of the fluid flowing through the pipe (in kilograms per cubic meter or any other consistent units) f is the friction factor, which depends on the Reynolds number and the roughness of the pipe. L is the length of the pipe (in meters or any other consistent units) By plugging in the values for all the variables, you can calculate the flow rate through the steel pipe accurately.

Q: How do steel pipes compare to other types of piping materials?: Steel pipes are known for their exceptional strength, durability, and resistance to corrosion, making them superior to many other types of piping materials. They can withstand high pressure and temperature, making them suitable for a wide range of applications. Additionally, steel pipes are cost-effective, readily available, and easily recyclable, making them a preferred choice in various industries.

Q: Can steel pipes be used for underground water supply pipelines?: Indeed, underground water supply pipelines can utilize steel pipes. The reason for the widespread use of steel pipes in water supply systems is their ability to endure, their strength, and their resistance to corrosion. They can withstand high levels of pressure and can accommodate large quantities of water. Furthermore, steel pipes come in a variety of sizes and thicknesses, granting flexibility in the design and installation of underground water supply pipelines. However, it is crucial to ensure that the steel pipes are appropriately coated or lined to avert corrosion and uphold the water's quality during transportation. Regular inspections and maintenance must also be carried out to prevent any potential problems with the steel pipes.

Q: How are steel pipes protected against fire?: Steel pipes are typically protected against fire through the application of fire-resistant coatings or by encasing them in fire-rated materials, such as concrete or gypsum board. Additionally, fire sprinkler systems or fire-resistant insulation may be installed around the pipes to provide an added layer of protection.

Q: What are the different types of steel pipe coatings for corrosion protection?: Some of the different types of steel pipe coatings for corrosion protection include epoxy coatings, polyethylene coatings, polyurethane coatings, and zinc coatings.

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