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:What are the different methods of pipe welding for steel pipes?: There are several methods of pipe welding for steel pipes, including Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), Flux-Cored Arc Welding (FCAW), Submerged Arc Welding (SAW), and Tungsten Inert Gas Welding (TIG). Each method has its own advantages and is used depending on the specific requirements of the project, such as the thickness of the pipe, the type of steel, and the desired weld quality.

Q:How are steel pipes protected from corrosion in corrosive environments?: Steel pipes are protected from corrosion in corrosive environments through various methods such as coating the pipes with corrosion-resistant materials like epoxy or zinc, using cathodic protection techniques, and implementing regular inspections and maintenance to identify and address any potential corrosion issues.

Q:Can steel pipes be used for underground fire protection systems?: Yes, steel pipes can be used for underground fire protection systems. Steel pipes are commonly used for their durability, high tensile strength, and resistance to heat and pressure. They are suitable for carrying water or fire suppression agents underground to protect against fire hazards.

Q:How are steel pipes used in the wastewater treatment industry?: Steel pipes are commonly used in the wastewater treatment industry for various purposes, including the transportation of wastewater from one area to another, the distribution of treated water to different locations, and the construction of infrastructure such as pumping stations and treatment plants. Due to their durability, resistance to corrosion, and ability to withstand high pressure, steel pipes are essential components in the efficient and reliable operation of wastewater treatment systems.

Q:How do steel pipes handle vibrations?: The effectiveness of handling vibrations is a well-known attribute of steel pipes. Their strong and rigid nature enables them to withstand various types of vibrations, including mechanical vibrations and seismic activities. The structural integrity and strength of steel pipes are responsible for their resilience. Steel pipes possess high tensile strength, which allows them to resist deformation or breakage when exposed to vibrations. They also exhibit resistance to fatigue, meaning they can endure repeated vibrations without suffering significant damage. This quality makes steel pipes ideal for applications involving constant or cyclic vibrations, such as in industrial settings or for fluid transportation through pipelines. Furthermore, steel pipes have the added advantage of being able to dampen vibrations due to their mass. The weight of the steel pipe aids in absorbing and dissipating the energy generated by vibrations, preventing excessive movement or oscillation. This damping effect contributes to the overall stability and durability of the pipe system. Various measures can be taken to further enhance the ability of steel pipes to handle vibrations. These measures may include the utilization of vibration isolators or dampers, which are devices designed to reduce the transmission of vibrations from the surrounding environment. Additionally, proper installation techniques and regular maintenance can help ensure that steel pipes continue to function optimally under conditions prone to vibrations. In conclusion, steel pipes possess the necessary attributes to effectively handle vibrations, including strength, resistance to fatigue, and the ability to dampen vibrations. Their robustness and durability make them a reliable choice for applications where vibrations are a concern, guaranteeing the safe and efficient transportation of fluids or materials.

Q:How are steel pipes used in the manufacturing of telecommunications infrastructure?: Steel pipes are commonly used in the manufacturing of telecommunications infrastructure for various purposes. They are primarily utilized for the installation of underground or overhead fiber optic cables and other telecommunication lines. Steel pipes provide durability, strength, and protection to the cables against external factors such as weather, vandalism, and other potential damages. They also offer the necessary support and stability for the installation of antennas, towers, and other equipment used in telecommunications networks. Additionally, steel pipes are used for the construction of conduits and ducts that house and protect the cables within a telecommunications system.

Q:What is the difference between steel pipe and ductile iron pipe?: The main difference between steel pipe and ductile iron pipe lies in their composition and properties. Steel pipe is made from a combination of iron and carbon, while ductile iron pipe is made from iron with added graphite and other elements to enhance its strength and ductility. Ductile iron pipe is typically stronger and more flexible than steel pipe, making it better suited for applications where durability and resistance to external forces are important. Additionally, ductile iron pipe is less susceptible to corrosion compared to steel pipe, making it a preferred choice in environments with high moisture or corrosive elements.

Q:How are steel pipes classified based on their thickness?: There are three main categories for classifying steel pipes based on their thickness: Schedule, Nominal Pipe Size (NPS), and Wall Thickness. In North America, the Schedule classification is commonly used and refers to the pipe's wall thickness. It is indicated by numbers like Schedule 10, Schedule 40, and Schedule 80, where a higher number means a thicker pipe. On the other hand, the Nominal Pipe Size (NPS) classification is used internationally and refers to the pipe's inside diameter. It is expressed in inches and is usually followed by a schedule number to indicate the wall thickness. For example, NPS 6 Schedule 40 means a pipe with a 6-inch inside diameter and a wall thickness according to Schedule 40. Additionally, steel pipes can be classified based on their wall thickness in millimeters or inches. This classification provides a more precise measurement of the pipe's thickness and is commonly referred to as the "wall thickness" or "wt" in specifications. The wall thickness is measured from the outside diameter to the inside diameter and can be expressed in various units of measurement like millimeters, inches, or gauge. In summary, steel pipes are classified based on their thickness using different systems such as Schedule, Nominal Pipe Size (NPS), and Wall Thickness. These classifications ensure the selection of the appropriate pipe for specific applications, taking into account factors such as pressure requirements, structural integrity, and compatibility with other system components.

Q:How are steel pipes sized and classified?: Steel pipes are sized and classified based on their outer diameter, wall thickness, and length. The sizing is done using standard measurements such as nominal pipe size (NPS) or nominal diameter (DN). Classification is determined by factors such as the pipe's pressure rating, material composition, and intended use. This helps ensure compatibility and proper installation in various applications such as plumbing, construction, and industrial processes.

Q:Are steel pipes suitable for HVAC systems?: Indeed, steel pipes prove to be a suitable option for HVAC systems. HVAC applications widely favor steel pipes due to their numerous advantages. Initially, their robustness and durability enable them to endure the high pressure and temperature requirements commonly associated with HVAC systems. Furthermore, steel pipes exhibit exceptional resistance to corrosion, rendering them suitable for both indoor and outdoor installations. Moreover, their extended lifespan significantly reduces the need for frequent replacements or repairs. Additionally, the availability of steel pipes in various sizes and thicknesses facilitates effortless customization and installation. Lastly, steel pipes offer a cost-effective solution for HVAC systems compared to alternative materials, making them a financially efficient choice. In conclusion, steel pipes emerge as a reliable and appropriate selection for HVAC systems due to their strength, durability, corrosion resistance, availability, and cost-effectiveness.

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