• Straight Welded Steel Pipe ASME ANSI JIS GB Q195--Q345 System 1
  • Straight Welded Steel Pipe ASME ANSI JIS GB Q195--Q345 System 2
  • Straight Welded Steel Pipe ASME ANSI JIS GB Q195--Q345 System 3
Straight Welded Steel Pipe ASME ANSI JIS GB Q195--Q345

Straight Welded Steel Pipe ASME ANSI JIS GB Q195--Q345

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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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1Structure 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. 

 

2‍‍Main Features of Straight Welded Steel Pipe:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price  

 

3Straight 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. 

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of Straight Welded Steel Pipe:  

How 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.

How 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.

Why 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.

 

6Straight Welded Steel Pipe Images 

 

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Q:What are the different strategies for pipe laying using steel pipes?
Various strategies exist for laying steel pipes, each tailored to specific environments and needs. Here are a few commonly used approaches: 1. Open Trench: The traditional and widely employed method involves digging a trench along the desired pipeline route. Steel pipes are then placed in the trench, aligned, and welded together. This technique allows for easy access, maintenance, and repair of the pipeline. 2. Direct Pipe: This method is utilized when the pipeline needs to pass beneath obstacles like rivers or highways. It entails drilling a borehole from one side to the other while simultaneously laying the steel pipe. The pipe is subsequently pulled through the borehole, resulting in a continuous pipeline. 3. Horizontal Directional Drilling (HDD): HDD is employed when the pipeline must be installed beneath existing infrastructure or environmentally sensitive areas. A pilot hole is drilled horizontally, and the steel pipe is then pulled through using a reaming tool. This approach minimizes surface disruption and reduces environmental impact. 4. Sliplining: This technique involves inserting a smaller diameter steel pipe into an existing larger pipe. The smaller pipe is pushed or pulled into the larger one, providing a new corrosion-resistant lining. Sliplining is commonly used for rehabilitating deteriorated or damaged pipelines. 5. Microtunneling: Similar to HDD, microtunneling employs a microtunnel boring machine (MTBM) that simultaneously excavates the soil and installs the steel pipe. This method is frequently used for precise pipe laying, particularly in urban areas with limited space. 6. Jacking: Jacking, also referred to as pipe jacking or pipe ramming, is suitable for installing steel pipes in soil conditions that are unsuitable for open trenching. Hydraulic jacks or pneumatic rams are used to push the steel pipe into the ground. Jacking is commonly employed for crossing under railways, roads, or buildings. 7. Offshore Pipeline Laying: When it comes to subsea applications, various techniques can be employed, including S-lay, J-lay, or reel-lay. These methods involve deploying the pipeline from a vessel, either vertically or at an inclined angle, and welding the steel pipes together as they are lowered to the seabed. Each strategy possesses unique advantages and considerations, depending on factors such as terrain, environmental impact, existing infrastructure, and project requirements. It is crucial to thoroughly assess these factors and select the most appropriate pipe laying strategy to ensure the safe and efficient installation of steel pipes.
Q:What are the different types of steel pipe tees?
Various plumbing and piping applications commonly utilize different types of steel pipe tees. These tees serve various purposes and offer specific functionalities. 1. Equal tee: This tee consists of three branches of the same size, ensuring an equal flow of fluid or gas through each branch. 2. Unequal tee: As suggested by its name, an unequal tee features branches of varying sizes. This allows for merging or diversion of flows with different volumes or pressures. 3. Reducing tee: This tee is deployed when the branch size is smaller than the main pipe size. It enables a reduction in size while maintaining the flow in the main line. 4. Barred tee: In situations involving the insertion or removal of a pipeline-cleaning and inspection device known as a pig, a barred tee is employed. It possesses a bar welded across one or two branches to create a bypass for the pig. 5. Lateral tee: A lateral tee has a branch angle of either 45 degrees or 90 degrees, facilitating the perpendicular alignment of the branch line with the main line. It finds extensive use in fire sprinkler systems and scenarios necessitating a change in direction. 6. Compression tee: This tee is suitable for gas or hydraulic systems, where branches are connected using compression fittings rather than welding or threading. 7. Butt-weld tee: High-pressure and high-temperature applications employ butt-weld tees. These tees are welded to the main pipe using butt-welding techniques, ensuring a robust and leak-proof connection. These represent some of the most prevalent types of steel pipe tees employed across diverse industries. The selection of the appropriate tee depends on specific project requirements, such as pipe size, flow rates, and transported materials.
Q:Can steel pipes be threaded?
Yes, steel pipes can be threaded. Threading is a common process used to create a screw-like pattern on the outer surface of the pipe, allowing it to be connected to other fittings or components. Threading can be done manually or with the help of machinery, depending on the size and requirements of the pipe.
Q:Can steel pipes be used for stadium construction?
Yes, steel pipes can be used for stadium construction. Steel pipes offer several advantages that make them suitable for this purpose. Firstly, steel pipes are strong and durable, making them capable of withstanding heavy loads and providing structural stability to large structures like stadiums. They have high tensile strength, which means they can resist bending or breaking under pressure. Additionally, steel pipes are resistant to corrosion, which is crucial for outdoor structures like stadiums that are exposed to various weather conditions. Their resistance to rust and other forms of degradation ensures the longevity of the stadium. Furthermore, steel pipes are versatile and can be easily fabricated into different shapes and sizes, allowing for customized designs and efficient installation. Moreover, steel pipes offer cost-effectiveness in stadium construction. They can be easily produced in large quantities, making them readily available and affordable. The ease of transportation and installation of steel pipes also contributes to their cost-effectiveness. Another advantage of using steel pipes for stadium construction is their sustainability. Steel is a recyclable material, and using steel pipes promotes environmental responsibility. The recyclability of steel reduces the demand for new materials and minimizes waste. In summary, steel pipes can indeed be used for stadium construction due to their strength, durability, resistance to corrosion, versatility, cost-effectiveness, and sustainability.
Q:What are the quality control measures for steel pipe production?
Quality control measures for steel pipe production typically involve several steps to ensure the final product meets the required specifications and industry standards. These measures may include inspection of raw materials, such as the steel coils or plates, to ensure they meet the required chemical composition and mechanical properties. During manufacturing, various processes like forming, welding, and heat treatment are closely monitored to maintain dimensional accuracy and integrity. Non-destructive testing methods, such as ultrasonic or radiographic inspection, are often employed to detect any defects or anomalies in the pipes. Additionally, visual inspection, surface treatment assessment, and mechanical testing are conducted to assess the overall quality before the pipes are released for distribution.
Q:How are steel pipes used in the manufacturing of bicycles?
Steel pipes are commonly used in the manufacturing of bicycles as they provide strength, durability, and rigidity to the frame structure. The pipes are typically used to construct the main frame, handlebars, seat post, and fork, ensuring a sturdy and reliable bicycle.
Q:Can steel pipes be used for aboveground applications?
Yes, steel pipes can be used for aboveground applications. They are commonly used in various aboveground structures such as buildings, bridges, and pipelines due to their strength, durability, and resistance to environmental conditions.
Q:Do steel pipes require maintenance?
Yes, steel pipes do require maintenance. Regular maintenance is necessary to ensure their proper functioning and longevity. This may involve cleaning, inspecting for any signs of corrosion or damage, and applying protective coatings to prevent rusting. Additionally, periodic maintenance checks and repairs may be needed to address any leaks or structural issues that may arise over time.
Q:How are steel pipes used in the manufacturing of agricultural machinery and equipment?
Steel pipes are widely used in the manufacturing of agricultural machinery and equipment due to their various beneficial properties. These pipes are utilized in several ways to enhance the efficiency and durability of agricultural machinery. One of the primary uses of steel pipes in agricultural machinery is for the construction of frames and chassis. The high strength and structural integrity of steel pipes make them ideal for supporting heavy loads and withstanding the rigorous conditions often encountered in agricultural operations. Whether it is a tractor, combine harvester, or tillage equipment, steel pipe frames provide the necessary stability and sturdiness required for these machines to perform efficiently in the field. Steel pipes are also commonly used in the hydraulic systems of agricultural machinery. These pipes serve as conduits for hydraulic fluids, allowing for the smooth and reliable operation of various components such as hydraulic cylinders, pumps, and motors. Due to their resistance to corrosion and high pressure, steel pipes ensure the longevity of hydraulic systems, reducing maintenance and repair costs for agricultural machinery. Furthermore, steel pipes find applications in the exhaust systems of agricultural equipment. The exhaust gases produced by engines need to be safely and efficiently expelled to minimize environmental impact and maintain engine performance. Steel pipes with appropriate thickness and thermal resistance are used to construct exhaust systems, allowing for the effective removal of exhaust gases and reducing noise pollution. In addition, steel pipes are utilized in the manufacturing of irrigation systems and equipment used in agriculture. Whether it is for transporting water from a source to the fields or distributing water to crops through sprinklers or drip irrigation, steel pipes offer the necessary durability and resistance to pressure, ensuring efficient water delivery and minimizing leaks. Overall, the use of steel pipes in the manufacturing of agricultural machinery and equipment is crucial for enhancing their performance, durability, and efficiency. The strength, structural integrity, resistance to corrosion, and high pressure capabilities of steel pipes make them indispensable components in various applications within the agricultural sector.
Q:Can steel pipes be insulated for thermal efficiency?
Steel pipes can indeed be insulated to enhance their thermal efficiency. By insulating steel pipes, heat loss or gain can be minimized, depending on the specific purpose. Typically, the insulation material is wrapped around the pipes, creating a protective barrier. This barrier effectively prevents heat transfer between the pipes and the surrounding environment. As a result, the energy required to heat or cool the fluid flowing through the pipes is significantly reduced, leading to improved energy efficiency. This practice is widely employed in industries such as HVAC, oil and gas, and industrial processes, where precise temperature control is crucial. Moreover, insulation also serves to prevent condensation and corrosion on the outer surface of the pipes. All in all, insulating steel pipes is a cost-effective measure that enhances thermal efficiency and reduces energy consumption.

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