Many varieties of large diameter longitudinal submerged arc welded Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 6000 m.t./month
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Product Description:
1.Specification of large diameter longitudinal submerged arc welded pipe:
1)Grade:API 5L GR.B, X40, X42, X52, X56, X60, X65, X70.ST37/37-2,ST33,ST35.8,ST35.4.GB 9711.1/SY5037/GB3092
2)Application: It is widely applied to line pipe in oil and sewage transportation , and it is used in Low pressure liquid and gassy transportation and it is also good Structure pipe in building and bridge field.
3)Standard:ASTM A53,ASTM A671 ,ASTM A672 .ASTM A252 API 5L (PSL-1,PSL-2) ,API 5L 2B ,2H,2W.DIN1626,DIN17175,DIN1629.JISG 3452,JISG3457/3456,JISG3461.GB 9711.1/SY5037/GB3092
2.large diameter longitudinal submerged arc welded pipe size:
OD: 406.4MM-1422MM (16”-56”)
Thickness: 8MM-50.8MM depends on OD
3. Mechanical Properties and Chemical Composition for large diameter longitudinal submerged arc welded pipe:
Standard | Grade | （MPa） | （MPa） | ||
Yield strength | Tensile Strength | ||||
API SPEC 5L | PSL1 | ||||
B | ≥241 | ≥414 | |||
×42 | ≥290 | ≥414 | |||
×46 | ≥317 | ≥434 | |||
×52 | ≥359 | ≥455 | |||
×56 | ≥386 | ≥490 | |||
×60 | ≥414 | ≥517 | |||
×65 | ≥448 | ≥531 | |||
×70 | ≥483 | ≥565 | |||
PSL2 | |||||
| Min | Max | Min | Max | |
B | 241 | 448 | 441 | 758 | |
×42 | 290 | 496 | 414 | 758 | |
×46 | 317 | 524 | 434 | 758 | |
×52 | 359 | 531 | 455 | 758 | |
×56 | 386 | 544 | 490 | 758 | |
×60 | 414 | 565 | 517 | 758 | |
×65 | 448 | 600 | 531 | 758 | |
×70 | 483 | 621 | 565 | 758 | |
Chemical Composition(%)
Standard | Grade | C | Mn | P | S | CEV |
Max | Max | Max | Max | Max | ||
PSL1 |
- | |||||
B | 0.26 | 1.2 | 0.030 | 0.030 | ||
×42 | 0.26 | 1.3 | 0.030 | 0.030 | ||
×46,×52,×56，X60 | 0.26 | 1.4 | 0.030 | 0.030 | ||
X65 | 0.26 | 1.45 | 0.030 | 0.030 | ||
X70 | 0.26 | 1.65 | 0.030 | 0.030 | ||
PSL2 |
0.43 | |||||
B | 0.22 | 1.20 | 0.025 | 0.015 | ||
×42 | 0.22 | 1.30 | 0.025 | 0.015 | ||
×46,×52,×56, X60 | 0.22 | 1.40 | 0.025 | 0.015 | ||
X65 | 0.22 | 1.45 | 0.025 | 0.015 | ||
X70 | 0.22 | 1.65 | 0.025 | 0.015 | ||
4. Packing & Delivery for pipes:
Packing Detail: bundles with anti-rust painting and with plastic caps
Delivery Term: 30 days after receving payment or L/C
5. Products pictures for large diameter longitudinal submerged arc welded pipe:
6、FAQ of large diameter longitudinal submerged arc welded 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.
- Q: Seamed steel pipe seamless steel pipe, carbon steel pipe, galvanized pipe, four how to distinguish between
- Welded and seamless steel pipe is divided according to the processing form, usually welded seam steel tube, seamless steel tube drawing and hot two ways, carbon steel is material, galvanized pipe is welded pipe production after the surface is galvanized
- Q: How are steel pipes protected against external impact or mechanical damage?
- Various methods are employed to protect steel pipes from external impact or mechanical damage. One commonly utilized technique involves applying a protective coating onto the pipe's surface. This coating acts as a barrier, preventing direct contact between the pipe and external objects or forces. Coatings such as epoxy, polyethylene, or polyurethane are frequently chosen due to their excellent resistance to impact and abrasion. Another method of protection involves the use of pipe supports or clamps. These supports are positioned at regular intervals along the pipe's length, ensuring stability and minimizing excessive movement or vibration. They help distribute the load and absorb any external impacts, thus reducing the risk of mechanical damage. Additionally, steel pipes can be reinforced by wrapping them with materials like fiberglass, carbon fiber, or kevlar. These reinforcement materials provide an extra layer of strength and durability, enhancing the pipes' resistance to external impact and mechanical damage. Furthermore, burying the pipes underground or installing them within protective casings can offer an additional layer of protection. This measure shields the pipes from direct contact with external objects, reducing the potential for damage caused by accidental impacts or environmental factors. In conclusion, a combination of protective coatings, supports, reinforcements, and appropriate installation methods ensures that steel pipes are safeguarded against external impact or mechanical damage. This effectively extends their lifespan and maintains their structural integrity.
- Q: What is the maximum allowable deflection for steel pipes?
- Industry standards and design codes typically determine the maximum allowable deflection for steel pipes. These regulations specify the acceptable limits of deflection to guarantee the pipes' structural integrity and functionality. The maximum allowable deflection can vary, depending on factors like pipe diameter, wall thickness, material properties, and the application type. To determine the specific maximum allowable deflection for a particular steel pipe application, it is crucial to reference relevant standards and codes such as the ASME B31.3 code for process piping or AWWA standards for water transmission and distribution pipes. Adhering to these guidelines ensures the safe and efficient operation of steel pipes in various industries and applications.
- Q: How do you determine the wall thickness of a steel pipe?
- The wall thickness of a steel pipe can be determined by measuring the outer diameter (OD) and the inner diameter (ID) of the pipe, and then subtracting the ID from the OD.
- 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: 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: What are the different methods of pipe support for steel pipes?
- Various methods exist for supporting steel pipes, each aimed at guaranteeing pipe stability, alignment, and protection. Some frequently employed techniques are as follows: 1. Pipe Hangers: These devices suspend or bear the weight of the pipe from above. Typically crafted from metal, they can be adjustable or fixed, allowing for easy installation and maintenance. Depending on the application, pipe hangers can take the form of clevis hangers, beam clamps, or pipe rollers. 2. Pipe Shoes: These supports attach directly to the underside of the pipe, providing a stable resting surface. Usually made from steel or other durable materials, pipe shoes prevent pipe movement, absorb vibrations, and distribute weight evenly. They find common use in applications involving high temperatures or requiring thermal expansion. 3. Pipe Clamps: These devices fasten pipes together or secure them to structures. Constructed primarily of metal, pipe clamps come in various sizes and designs to accommodate different pipe diameters and configurations. They provide support and prevent sagging or movement, particularly in areas with directional or elevation changes. 4. Pipe Racks: These structures are custom-designed to support multiple pipes in an organized and secure manner. Commonly found in industrial settings like refineries or power plants, pipe racks store or support large quantities of pipes. Typically made of steel, they can be tailored to suit different pipe sizes and layouts. 5. Pipe Guides: These devices facilitate pipe movement control, especially during thermal expansion or contraction. Fixed to the structure, pipe guides offer a sliding surface that accommodates longitudinal pipe movement. They are frequently utilized in applications involving temperature variations, such as steam or hot water systems. These represent just a few examples of the numerous methods available for supporting steel pipes. The choice of support method depends on factors such as pipe size, weight, temperature, and specific application requirements. Selecting the appropriate support method is crucial to ensure pipe longevity and integrity while preventing issues like sagging, misalignment, or failure.
- Q: What are the different methods of cutting steel pipes?
- There are several different methods of cutting steel pipes, including manual methods such as hacksaw or pipe cutter, as well as mechanical methods like band saw, plasma cutting, or laser cutting. Each method has its own advantages and is chosen based on factors such as the thickness of the pipe, precision required, and production volume.
- Q: Can steel pipes be used for industrial ventilation systems?
- Yes, steel pipes can be used for industrial ventilation systems. Steel pipes are commonly used in such systems due to their durability, resistance to high temperatures, and ability to handle high airflow volumes. They are also cost-effective and can be easily fabricated to meet specific requirements of an industrial ventilation system.
- Q: What is the lifespan of galvanized steel pipes?
- The lifespan of galvanized steel pipes can vary depending on several factors such as the quality of the galvanizing process, the environment in which they are installed, and how well they are maintained. However, on average, galvanized steel pipes can last between 40 to 70 years before they may start to show signs of corrosion or degradation.
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Many varieties of large diameter longitudinal submerged arc welded Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 6000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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