Rectangular Steel Pipe BS, JIS, GB, DIN System 1

Rectangular Steel Pipe BS, JIS, GB, DIN

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 20 m.t.

Supply Capability:: 15000 m.t./month

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1、Structure of 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 Pipe :

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price

3、 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

1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing.

4、Packaging & Delivery

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

5、FAQ of 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.

6、‍‍ Pipe Images：

Rectangular Steel Pipe BS, JIS, GB, DIN

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Q: Can steel pipes be used for stadium construction?: Certainly, stadium construction can utilize steel pipes. Steel pipes possess several benefits that render them suitable for this purpose. Primarily, steel pipes exhibit immense strength and durability, enabling them to withstand heavy loads and provide structural stability to large structures such as stadiums. Their high tensile strength ensures they can resist bending or breaking under pressure. Moreover, steel pipes possess resistance to corrosion, a crucial characteristic for outdoor structures like stadiums that are exposed to diverse weather conditions. This resistance to rust and other forms of degradation guarantees the stadium's longevity. Additionally, steel pipes are highly versatile and can be easily fabricated into various shapes and sizes, allowing for customized designs and efficient installation. Furthermore, in terms of cost-effectiveness, steel pipes prove advantageous in stadium construction. They can be produced in large quantities with ease, making them readily available and affordable. The simplicity of transportation and installation also contributes to their cost-effectiveness. Another advantage of employing steel pipes in stadium construction lies in their sustainability. Steel is a recyclable material, and utilizing steel pipes promotes environmental responsibility. The recyclability of steel reduces the demand for new materials and minimizes waste. To summarize, due to their strength, durability, resistance to corrosion, versatility, cost-effectiveness, and sustainability, steel pipes can indeed be utilized for stadium construction.

Q: Can steel pipes be used for brewery installations?: Indeed, brewery installations can utilize steel pipes. Within breweries, steel pipes are frequently employed for a multitude of purposes, including fluid transfer, equipment interconnection, and plumbing system establishment. Steel pipes boast exceptional durability, strength, and resistance to corrosion, rendering them apt for handling the challenging conditions and high-pressure environments typically encountered in brewery installations. Moreover, the ability to weld steel pipes together enables seamless connections, guaranteeing a dependable and leakage-free operation. Nevertheless, it remains crucial to ensure that the steel pipes employed in brewery installations comply with the requisite standards and regulations, thereby safeguarding the safety and quality of the beer production process.

Q: Can steel pipes be used for underwater applications?: Yes, steel pipes can be used for underwater applications. Steel is a strong and durable material that can withstand the harsh conditions of underwater environments, making it suitable for various applications such as offshore oil and gas exploration, underwater construction, and marine infrastructure. Additionally, steel pipes can be coated with protective layers to prevent corrosion and ensure long-term performance underwater.

Q: What is the purpose of pipe flanges in steel pipes?: The purpose of pipe flanges in steel pipes is to provide a secure and leak-proof connection between two pipes or fittings. Flanges act as a connection point, allowing easy assembly and disassembly of pipes while ensuring a tight seal to prevent any leakage or loss of fluid or gas.

Q: How do you calculate the pipe flow rate coefficient for steel pipes?: To calculate the pipe flow rate coefficient for steel pipes, you need to consider various factors related to the pipe's dimensions, material properties, and the fluid flowing through it. The pipe flow rate coefficient, also known as the discharge coefficient (Cd), is a dimensionless value that represents the efficiency of fluid flow through a pipe. Here are the steps to calculate the pipe flow rate coefficient for steel pipes: 1. Determine the inside diameter (ID) of the steel pipe. This is the measurement of the internal cross-sectional area of the pipe through which the fluid flows. 2. Calculate the pipe's cross-sectional area (A) using the formula: A = π * (ID/2)^2. Here, π is the mathematical constant pi (approximately 3.14). 3. Measure the pressure drop (∆P) across the steel pipe. This is the difference in pressure between the pipe's inlet and outlet. 4. Measure the fluid flow rate (Q) through the pipe. This can be done using flow meters or by measuring the time it takes for a known volume of fluid to pass through the pipe. 5. Calculate the velocity (V) of the fluid flowing through the pipe using the formula: V = Q / A. Here, Q is the fluid flow rate and A is the cross-sectional area of the pipe. 6. Calculate the pipe flow rate coefficient (Cd) using the formula: Cd = Q / (A * √(2 * ∆P / ρ)). Here, ρ is the fluid density. This formula is derived from the Bernoulli's equation and takes into account the pressure drop, fluid flow rate, and fluid density. It is important to note that the pipe flow rate coefficient for steel pipes can vary depending on factors such as pipe roughness, fluid viscosity, and Reynolds number. Therefore, it is advisable to consult relevant engineering standards, such as the Darcy-Weisbach equation or the Hazen-Williams equation, to obtain more accurate values for specific pipe configurations and fluid properties.

Q: Can steel pipes be used for petrochemical plants?: Yes, steel pipes can be used for petrochemical plants. Steel pipes are often preferred in petrochemical plants due to their high strength, durability, and resistance to corrosion, making them ideal for handling various chemicals and substances involved in petrochemical processes. Additionally, steel pipes can withstand high pressure and temperature conditions commonly encountered in petrochemical plants, making them a reliable choice for transporting fluids and gases.

Q: How to distinguish seamless pipe and welded pipe?: If there is a weld seam in the fracture surface, whether it is inside or outside the pipe, then it is the welded pipe

Q: What is the role of steel pipes in the chemical manufacturing industry?: Steel pipes play a crucial role in the chemical manufacturing industry as they are used for the transportation of various chemicals, both liquids and gases. The durability and resistance to corrosion of steel make it an ideal material for these pipes, ensuring the safe and efficient transfer of hazardous substances. Additionally, steel pipes are able to withstand high pressure and temperature conditions, allowing for the smooth operation of chemical processes.

Q: Can steel pipes be used for conveying solid materials?: Yes, steel pipes can be used for conveying solid materials. Steel pipes are commonly used in industries such as construction, oil and gas, and mining to transport solid materials such as ores, coal, grains, and various other solid substances. The durability and strength of steel make it suitable for handling the weight and pressure of solid materials during transportation.

Q: What are the different testing methods used for steel pipes?: There are various testing methods used for steel pipes, including non-destructive testing methods such as ultrasonic testing, magnetic particle testing, radiographic testing, and liquid penetrant testing. These methods help detect any defects or flaws in the pipes, ensuring their quality and integrity. Additionally, destructive testing methods such as tensile testing, impact testing, and hardness testing are also used to evaluate the mechanical properties of the steel pipes.

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