Straight Welded Steel Pipe ASME ANSI JIS GB Q195--Q345
- Ref Price:
-
- 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 Straight Welded Steel 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 Straight Welded Steel Pipe:
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、Straight Welded Steel 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 Straight Welded Steel 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、Straight Welded Steel Pipe Images：
- Q:How are steel pipes used in the construction of underground parking structures?
- Steel pipes are commonly used in the construction of underground parking structures for various purposes such as drainage systems, ventilation, plumbing, and structural support. The pipes are utilized to facilitate the efficient flow of water and sewage, provide ventilation to ensure air circulation and remove harmful gases, supply water to different areas of the structure, and offer stability and strength to the overall construction.
- Q:How are steel pipes measured and categorized?
- Typically, steel pipes are measured and categorized by their outer diameter, wall thickness, and length. The outer diameter represents the width of the pipe when viewed from the side, while the wall thickness refers to how thick the pipe's walls are. These measurements are usually given in millimeters or inches. Categorizing steel pipes is done based on their purpose and specifications. The most common way to categorize them is by their pressure rating, which determines their ability to handle different levels of internal or external pressure. Pipes are divided into different pressure classes, like Schedule 40, Schedule 80, and Schedule 160, to name a few. The higher the pressure class, the thicker and stronger the pipe is. Steel pipes can also be categorized according to their manufacturing process and material composition. For instance, seamless steel pipes are created by piercing a solid steel bar to create a hollow tube, while welded steel pipes are made by rolling and welding a flat steel sheet or strip into a cylindrical shape. Additionally, steel pipes can be classified based on their material composition, such as carbon steel pipes, stainless steel pipes, or alloy steel pipes. Another way to categorize steel pipes is by their end connections or fittings. Common types of pipe ends include threaded ends, which are suitable for attaching fittings by screwing them onto the pipe, and plain ends, which are typically used for welding or flanging connections. In conclusion, the measurement and categorization of steel pipes are crucial for ensuring the proper selection and usage of these pipes in various industries, including construction, oil and gas, plumbing, and manufacturing.
- Q:How do you calculate the pipe friction loss coefficient for steel pipes?
- To determine the pipe friction loss coefficient for steel pipes, it is necessary to take into account several factors. One commonly used approach is the utilization of the Darcy-Weisbach equation, which establishes a relationship between the frictional head loss in a pipe and the flow rate, pipe diameter, pipe length, fluid properties, and the pipe roughness coefficient. The Darcy-Weisbach equation can be presented as follows: The head loss due to friction, denoted as hf, can be calculated using the formula (f * L * V^2) / (2 * g * D), where: - f represents the pipe friction factor, - L corresponds to the pipe length, - V denotes the fluid velocity, - g symbolizes the acceleration due to gravity, and - D represents the pipe diameter. Determining the pipe friction factor, f, is crucial. For steel pipes, this factor relies on the pipe roughness coefficient, which indicates the relative roughness of the pipe. The relative roughness is determined by dividing the absolute roughness of the pipe surface by the pipe diameter. The pipe roughness coefficient can be obtained from different sources, including manufacturer specifications, engineering handbooks, or experimental data. It is imperative to ensure that the roughness coefficient used aligns with the specific type and condition of the steel pipe under analysis. Once the pipe roughness coefficient is obtained, it can be employed to calculate the pipe friction factor through empirical correlations or charts. These correlations often involve the Reynolds number, a dimensionless quantity that characterizes the flow regime. By substituting the determined pipe friction factor into the Darcy-Weisbach equation, it becomes possible to calculate the head loss due to friction for steel pipes. This value is indispensable in the design of piping systems, determination of pump requirements, or estimation of energy consumption in fluid flow applications.
- Q:How do you determine the maximum allowable stress for steel pipes?
- To determine the maximum allowable stress for steel pipes, several factors need to be considered. These factors include the material properties of the steel, such as yield strength and ultimate tensile strength, as well as the intended use and operating conditions of the pipes. Standards and codes such as ASME B31.3 or API 5L provide guidelines and formulas to calculate the maximum allowable stress based on these factors. Additionally, industry experts and engineers use various testing methods and simulations to ensure the safety and integrity of steel pipes under different loads and environments.
- Q:How are steel pipes used in the transportation of liquids and gases?
- Steel pipes are used in the transportation of liquids and gases due to their durability, strength, and resistance to corrosion. They are commonly used in industries such as oil and gas, water supply, and chemical processing. Steel pipes ensure the safe and efficient movement of fluids over long distances, as they can withstand high pressure and extreme temperatures. Additionally, their seamless construction minimizes the risk of leaks, making them essential for transporting various liquids and gases.
- Q:How are steel pipes used in the automotive exhaust system?
- Steel pipes are used in the automotive exhaust system to transport and expel the exhaust gases from the engine. They are durable and resistant to high temperatures, making them suitable for this purpose. Steel pipes are often bent and welded together to form the exhaust system, ensuring a smooth flow of exhaust gases and minimizing any leaks.
- Q:Can steel pipes withstand high temperatures?
- Yes, steel pipes can withstand high temperatures. Steel is known for its excellent thermal conductivity and high melting point, making it suitable for various applications that involve exposure to elevated temperatures.
- Q:Is the same specification seamless steel pipe more expensive than welded pipe?
- Specifications of the same kind of seamless steel pipe than welded pipe prices are generally about 30% high, large diameter difference is greater.
- Q:Can steel pipes be bent or shaped?
- Yes, steel pipes can be bent or shaped using various methods such as cold bending, hot bending, or using hydraulic or mechanical equipment.
- Q:How are steel pipes protected against ultraviolet radiation?
- Steel pipes are typically protected against ultraviolet radiation by applying a layer of protective coating or paint. This coating acts as a barrier, preventing the harmful effects of UV rays from deteriorating the steel and reducing its lifespan.
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Straight Welded Steel Pipe ASME ANSI JIS GB Q195--Q345
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 15000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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