HOT DIPPED GALVANIZED PIPE

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat Exchanger

Seamless Steel Tubes And Pipes For Automotive Axle Housing

API 5DP oilfield use drill pipe

Hollow Section Steel Tubes（Hot Rolled/Cold Rolled）

Hot API 5L Carbon Steel Tube 4'' SCH40 from cnbm

Seamless steel pipe ASTM A106/API 5L/ASTM A53 grade B high quality

Seamless Steel pipe hot Rolled/Cold Rolled

Galvanized Pipe America Standard A53 200g Hot Dipped or Pre-galvanized Pipe

Hot Dip Galvanized seamless steel pipe
Standard: GB,ASTM,DIN,JIS;
Grade: 10#, 20#, 45#, 16Mn;
Length: as customer's demand

Hot Dipped Galvanized Seamless Steel Pipe

1.Standard: ASTM A106,ASTM A53,EN10255,GB/T8162,GB/T8163

2.Material: 10#,20#,ST35,ST37,ST42,ST45

3.Size OD: 18-114.3mm

WT: 2-15mm

Length: 7-12m or according to your requirement.

4.Application: oil and natural gas pipeline, water supply pipeline, boiler, fertilizer factory, chemical

industry, industrial pipeline networks, foundation, construction.

5.Surface: oiled, varnished, black-painted, galvanized, 3PE anti-corrosion, etc

6.Pipe ends:

1). plain end

2). bevelled end

3). both ends threaded, one end with plastic caps protected, the other with socket(couplings) for connecting

4). with hole for casing pipes

5). grooved ends

7.Packing:

1). In bundles, with weaving bags wrapping outside

2). In bare bundles or according to your requirement

Q:What is the difference between internal and external coating for steel pipes?: A protective layer is applied to the inner surface of steel pipes, which is known as internal coating. The main purpose of this coating is to prevent corrosion and enhance resistance against chemicals present in the fluid being transported. Techniques like spraying, brushing, or dipping are commonly used to apply the internal coating, and it can be made of materials such as epoxy, polyurethane, or cement mortar. On the contrary, external coating involves the application of a protective layer on the outer surface of steel pipes. The main objective of this coating is to protect against environmental factors like corrosion, abrasion, and impact. External coatings are usually applied through methods like wrapping or coating with materials such as polyethylene, fusion-bonded epoxy, or asphalt enamel. To summarize, the primary difference between internal and external coating for steel pipes lies in their location and purpose. Internal coatings safeguard the inner surface from corrosion and chemical attacks, while external coatings provide protection against environmental damage on the outer surface. Both types of coatings are essential to ensure the durability and reliability of steel pipes in various applications.

Q:How do you calculate the pipe pressure drop coefficient for steel pipes?: To determine the pipe pressure drop coefficient for steel pipes, one can utilize the Darcy-Weisbach equation. This equation establishes a relationship between the pressure drop within a pipe and various factors, including the flow rate, pipe diameter, pipe length, and the properties of the fluid being conveyed. The pressure drop coefficient, also known as the friction factor or the Darcy-Weisbach friction factor, is represented by the symbol f and is dimensionless. It denotes the resistance to flow within the pipe. The value of f is contingent upon the flow regime, which can either be laminar or turbulent. In the case of laminar flow, occurring at low flow rates or with viscous fluids, the pressure drop coefficient can be determined through employment of the Hagen-Poiseuille equation. This equation relates the pressure drop to the fluid viscosity, pipe length, pipe diameter, and flow rate. However, for turbulent flow, arising at higher flow rates, the calculation of the pressure drop coefficient becomes more intricate. It is influenced by the roughness of the pipe wall, which impacts flow resistance. Typically, roughness is quantified using the relative roughness, defined as the ratio of the pipe wall roughness to the pipe diameter. To compute the pressure drop coefficient for turbulent flow in steel pipes, empirical correlations or Moody's diagram can be utilized. Moody's diagram provides a graphical depiction of the friction factor as a function of the Reynolds number and relative roughness. The Reynolds number characterizes the flow regime and is determined using fluid properties, flow rate, and pipe dimensions. By identifying the intersection of the Reynolds number and relative roughness on Moody's diagram, one can ascertain the corresponding pressure drop coefficient. It is crucial to note that the pressure drop coefficient for steel pipes may vary depending on specific pipe dimensions, surface roughness, and fluid properties. Consequently, it is advisable to refer to relevant standards or engineering sources for precise and current values of the pressure drop coefficient for steel pipes in a particular application.

Q:Do steel pipes expand or contract with temperature changes?: Steel pipes expand with temperature increases and contract with temperature decreases.

Q:Can seamless steel pipe and ordinary steel pipe be welded?: If your project is a seamless steel pipe, so theoretically, you put the tube with connected is not used.But the actual engineering operation, design drawings will be put on the normal need to improve the requirements of the drawings to the actual requirements, so if is the need of seamless steel pipe, welded pipe in the end so can you see yourself.

Q:How are steel pipes used in the manufacturing of agricultural machinery?: Steel pipes are commonly used in the manufacturing of agricultural machinery as they are strong, durable, and resistant to corrosion. They are used to create the framework and structural components of various agricultural equipment such as plows, tillers, planters, and harvesters. Steel pipes provide stability and strength to these machines, allowing them to withstand heavy loads and operate efficiently in tough farming conditions.

Q:What are the common applications of steel pipes in industrial settings?: Steel pipes have a wide range of applications in industrial settings, including but not limited to, the transportation of fluids and gases, structural supports in buildings and infrastructure, manufacturing of machinery and equipment, and even in the oil and gas industry for drilling and extraction purposes.

Q:Are steel pipes suitable for use in hydropower plants?: Yes, steel pipes are suitable for use in hydropower plants. Steel pipes offer excellent durability, strength, and resistance to corrosion, making them ideal for transporting water or other fluids in hydropower systems. Additionally, steel pipes can withstand high pressure and provide efficient flow rates, ensuring reliable and efficient operation of the hydropower plant.

Q:What are the safety precautions when working with steel pipes?: When working with steel pipes, some important safety precautions to follow include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots to protect against potential injuries. Additionally, it is essential to ensure proper ventilation in the work area to prevent the accumulation of hazardous fumes or gases. Using the correct tools and equipment, such as pipe wrenches and clamps, and following proper lifting techniques are crucial to avoid strains or back injuries. Regular inspection and maintenance of the pipes and equipment are also necessary to prevent any potential accidents. Lastly, it is important to receive proper training and follow established safety procedures to minimize risks and promote a safe working environment.

Q:What are the different methods of wrapping steel pipes for corrosion protection?: Corrosion protection for steel pipes can be achieved through various methods, tailored to specific applications and environmental conditions. Some commonly used techniques include: 1. Tape Wrapping: Steel pipes are wrapped with corrosion-resistant tape, like polyethylene or polypropylene tape, to create a barrier between the pipe and corrosive elements. This reduces the risk of direct contact and subsequent corrosion. 2. Inner Wrapping: A protective coating or lining is applied to the inside surface of the steel pipe. This method is commonly employed for pipes transporting fluids or gases, offering an additional layer of protection against internal corrosion. 3. External Coating: A widely utilized technique involves applying a protective coating to the outer surface of the steel pipe. This coating, which can consist of materials like epoxy, polyethylene, or polyurethane, acts as a barrier against corrosive elements, extending the pipe's lifespan. 4. Cathodic Protection: An electrochemical method is utilized to safeguard steel pipes from corrosion. By connecting the steel pipe to a sacrificial anode, such as zinc or magnesium, the anode corrodes instead of the pipe. This diverts corrosive currents away from the pipe, preventing its corrosion. 5. Heat Shrink Sleeve: Heat shrink sleeves are commonly employed for corrosion protection in underground or submerged scenarios. These sleeves, made of heat-activated material, shrink when heated to form a tight seal around the pipe. By preventing direct contact with moisture and corrosive elements, the sleeve effectively acts as a barrier. 6. Fusion Bonded Epoxy (FBE) Coating: FBE coating entails applying a thermosetting powder coating to the steel pipe's surface, which then fuses to create a protective layer. This coating exhibits strong adhesion and corrosion resistance, making it a popular choice for various steel pipe applications. Choosing the appropriate corrosion protection method for steel pipes depends on factors like the environment, specific corrosive elements, intended use, and other requirements. Seeking professional advice and consultation may be necessary to determine the most suitable technique for a particular situation.

Q:How are steel pipes coated to prevent external corrosion?: Steel pipes are coated to prevent external corrosion through a process called external coating. This typically involves applying a layer of protective material, such as epoxy or polyethylene, onto the surface of the steel pipe. The coating acts as a barrier, preventing moisture and other corrosive substances from coming into contact with the steel. This helps to prolong the life of the pipe and maintain its structural integrity.

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range