Galvanized Hot Rolled Steel Pipe 1-4“

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‍Specifications

Galvanized Pipe / Black Pipe / ERW Steel Pipe

Out Diameter: 10.3mm - 406.4mm

Thickness: 0.6mm 20.0mm

Steel Grade: Q195-Q345, S235JR, S275JR, S355JR, Gr. B-D

Standard: GB/T 3091-2001, BS1387-1985, DIN EN10025, EN10219, ASTM SCH40, ASTM SCH80

Surface Finish: hot dipped galvanized, electro galvanized, black

Out Diameter		Wall Thickness	Length
Inch	mm	mm	meter
1/2	21.3mm	0.6mm-3.0mm	0.3m-12m
3/4	26.9mm	0.6mm-3.0mm	0.3m-12m
1	33.4mm	1.0mm-3.0mm	0.3m-12m
1-1/4	42.3mm	1.0mm-4.0mm	0.3m-12m
1-1/2	48.3mm	1.0mm-4.0mm	0.3m-12m
2	60.3mm	1.5mm-4.0mm	0.3m-12m
2-1/2	76.1mm	1.5mm-4.0mm	0.3m-12m
3	88.9mm	1.5mm-9.5mm	0.3m-12m
4	114.3mm	2.0mm-9.5mm	0.3m-12m
5	141.3mm	3.0mm-9.5mm	0.3m-12m
6	168.3mm	3.0mm-12.0mm	1.0m-12.0m
8	219.1mm	3.2mm-12.0mm	1.0m-12.0m
10	273mm	3.2mm-12.0mm	1.0m-12.0m
12	323.8mm	6.0mm-15.0mm	1.0m-12.0m
14	355.6mm	8.0mm-15.0mm	1.0m-12.0m
16	406.4mm	8.0mm-20.0mm	1.0m-12.0m

Note: Pre-galvanized round hollow section with OD 19mm-100mm and thickness 1mm-2.3mm are also available.

FAQ of Galvanized Hot Rolled 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.

Galvanized Hot Rolled Steel Pipe Images：

Galvanized Hot Rolled Steel Pipe 1-4“

Q:How are steel pipes used in the transportation of fluids?: Steel pipes are commonly used in the transportation of fluids due to their durability, strength, and corrosion resistance. They are used in various industries, including oil and gas, water supply, and chemical processing, to transport liquids and gases over long distances. The seamless construction of steel pipes ensures a smooth flow of fluids, reducing friction and pressure loss. Additionally, their ability to withstand high temperatures and pressures makes them ideal for transporting fluids safely and efficiently.

Q:What is the difference between API 5L and ASTM A53 steel pipes?: API 5L and ASTM A53 are two widely used standards for carbon steel pipes. While they both serve similar purposes, there are some key differences between them. 1. Scope: API 5L covers seamless and welded steel pipes for transportation of oil, gas, water, and other fluids. It also includes plain-end, threaded-end, and belled-end pipe types. On the other hand, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes used for mechanical and pressure applications. 2. Manufacturing process: API 5L pipe is produced through a hot-rolling process, whereas ASTM A53 pipe is produced through a hot-rolling or cold-drawing process. This difference in manufacturing process affects the pipe's chemical composition and mechanical properties. 3. Chemical composition: API 5L pipe typically has a higher carbon content compared to ASTM A53 pipe. This is because API 5L pipe is used for conveying oil, gas, and water, which often require higher strength and durability. ASTM A53 pipe, on the other hand, is used for mechanical and pressure applications, where lower carbon content is suitable. 4. Mechanical properties: API 5L pipe has higher minimum yield strength and tensile strength compared to ASTM A53 pipe. This is due to the higher carbon content and stricter manufacturing process of API 5L pipe. ASTM A53 pipe has lower yield and tensile strength requirements, making it more suitable for general-purpose applications. 5. Coating options: API 5L pipe can be produced with various coating options such as black varnish, 3PE, FBE, and others, depending on the application requirements. ASTM A53 pipe is usually hot-dipped galvanized for corrosion resistance. In summary, API 5L and ASTM A53 steel pipes have different scopes, manufacturing processes, chemical compositions, mechanical properties, and coating options. Choosing the right pipe depends on the specific application requirements, such as the type of fluid being transported, the operating conditions, and the desired strength and durability.

Q:What are the environmental benefits of using steel pipes?: Steel pipes have several environmental benefits. Firstly, steel is a highly durable material, which means that steel pipes have a longer lifespan compared to other types of pipes. This reduces the need for frequent replacements, ultimately reducing waste generation. Additionally, steel is 100% recyclable, making it a sustainable choice. Using steel pipes promotes a circular economy by reducing the demand for virgin materials and minimizing carbon emissions associated with extraction and manufacturing processes. Furthermore, steel pipes are resistant to corrosion, reducing the risk of leaks and minimizing environmental contamination. Overall, the environmental benefits of using steel pipes include reduced waste, lower carbon emissions, and improved resource efficiency.

Q:Can steel pipes be used for fire sprinkler systems?: Yes, steel pipes can be used for fire sprinkler systems. Steel pipes are commonly used in fire sprinkler systems due to their strength, durability, and fire-resistant properties. They are capable of withstanding high temperatures and are less prone to damage from fire, making them a suitable choice for such systems.

Q:Are steel pipes resistant to UV degradation?: In general, steel pipes lack resistance to UV degradation. When exposed to ultraviolet (UV) radiation for extended periods, steel pipes may experience different types of degradation. The steel can become prone to brittleness, resulting in cracks and potential failure. Moreover, UV radiation can induce corrosion and discoloration on the surface of the steel pipes. To counteract the effects of UV degradation, it is possible to apply protective coatings or paint to create a barrier against UV radiation. Regular maintenance and inspections are crucial to detect any indications of UV degradation and implement necessary actions to prevent further deterioration.

Q:How are steel pipes repaired in case of damage?: Steel pipes can be repaired in case of damage through various methods such as welding, patching, or using clamps. The specific repair technique depends on the type and extent of the damage.

Q:What is the maximum diameter of steel pipes?: The maximum diameter of steel pipes can vary depending on the specific manufacturing capabilities, but generally, it can range from a few inches to several feet.

Q:Can steel pipes be used for roller coaster tracks?: Yes, steel pipes can be used for roller coaster tracks. Steel is a commonly used material for roller coaster tracks due to its strength, durability, and ability to withstand intense forces and high speeds.

Q:How can galvanized steel tubes be painted on the surface?: Galvanized parts are nonferrous metals, ferrous metals are black, all metal adhesion is poor;

Q:What are the different methods of pipe inspection for steel pipes?: There are several methods of pipe inspection that can be used for steel pipes. Some of the commonly used methods are as follows: 1. Visual Inspection: This is the most basic form of pipe inspection where a trained inspector visually examines the exterior and interior of the pipe to identify any visible defects or abnormalities. This method is often used as a preliminary inspection before more advanced techniques are employed. 2. Magnetic Particle Inspection (MPI): MPI involves applying a magnetic field to the steel pipe and then applying iron particles to the surface. Any surface cracks or defects in the pipe will cause a leakage of magnetic flux, which can be detected by the inspector. This method is particularly effective in identifying surface defects in ferromagnetic materials. 3. Ultrasonic Testing (UT): UT is a non-destructive testing method that uses high-frequency sound waves to detect internal defects or anomalies in steel pipes. A transducer is used to send ultrasonic waves into the pipe, and the reflections or echoes of the sound waves are analyzed to determine the presence of defects such as corrosion, cracks, or wall thickness variations. 4. Radiographic Testing (RT): In this method, X-rays or gamma rays are used to create an image of the internal structure of the steel pipe. The X-rays or gamma rays pass through the pipe, and the resulting image can reveal any defects, such as cracks, corrosion, or weld discontinuities. This method is commonly used for inspecting welded joints. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing technique that uses electromagnetic induction to detect surface and near-surface defects in steel pipes. A coil carrying an alternating current is passed over the pipe's surface, and any changes in the electrical conductivity or magnetic field caused by defects are detected and analyzed. 6. Acoustic Emission Testing (AET): AET is a method that detects and analyzes the high-frequency acoustic signals emitted by materials when they undergo deformation or damage. In the case of steel pipes, AET can be used to monitor and identify defects such as cracks, leaks, or corrosion by analyzing the acoustic signals emitted during service or under stress. These are just a few of the commonly used methods of pipe inspection for steel pipes. The choice of method depends on various factors such as the type of defect being looked for, the accessibility of the pipe, the desired level of sensitivity, and the cost and time constraints. It is often recommended to use a combination of inspection techniques to ensure a thorough assessment of the steel pipes.

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