• BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe Pre-galvanized Pipe System 1
  • BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe Pre-galvanized Pipe System 2
BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe Pre-galvanized Pipe

BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe Pre-galvanized Pipe

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
55 m.t.
Supply Capability:
8000 m.t./month

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1、Structure of Pre-galvanized Pipe BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe:

The surface of Pre-galvanized Pipe BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipecan increase the corrosion resistance of the steel tube, prolong service life. Galvanized pipe is widely used, in addition to water, gas, oil and other general low pressure fluid pipelines. It is also used in the petroleum industry, especially for offshore oil field of oil well pipe and oil pipe, chemical, coking equipment of oil heater, condensation cooler, coal run oil exchanger tube, and trestle pile, the mine tunnel support frame tube.

 

2、‍‍Main Features of Pre-galvanized Pipe BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe:

• High manufacturing accuracy with standard

• High strength and stable 

• Good visual effect

• Reasonable price  

• Small inertia resistance 

• Strong heat dissipation ability 

 

3、Pre-galvanized Pipe BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe Specification:

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

1 - 33 mm 

Section Shape

Round

Outer Diameter

21 - 610mm

Place of Origin

Tianjin, 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.
 

4、Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5、FAQ of Pre-galvanized Pipe BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe:

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.

 

6、‍‍ Pre-galvanized Pipe BS1387 Q235 A500 150g Hot Dipped or Galvanized Pipe: Images: ‍‍

 

 

Q:How are steel pipes tested for strength and durability?
Steel pipes are typically tested for strength and durability through various methods, including non-destructive testing techniques such as ultrasonic testing, magnetic particle inspection, and visual inspection. These tests help identify any potential defects, cracks, or flaws in the pipes. Additionally, destructive tests like tensile testing and impact testing are conducted to measure the strength and toughness of the steel pipes. These rigorous testing procedures ensure that the pipes meet the required standards and can withstand the intended applications.
Q:What are the advantages of using pre-fabricated steel pipes?
There are several advantages of using pre-fabricated steel pipes. Firstly, they offer superior strength and durability, making them resistant to extreme weather conditions and corrosion, resulting in longer lifespan. Secondly, pre-fabricated steel pipes can be manufactured to precise specifications, ensuring easy installation and reducing construction time and costs. Additionally, they provide excellent structural integrity, which makes them ideal for carrying heavy loads and withstanding high pressure. Lastly, pre-fabricated steel pipes are eco-friendly as they are recyclable, contributing to sustainability and reducing environmental impact.
Q:How are steel pipes coated to prevent external corrosion?
Steel pipes are commonly coated to prevent external corrosion through various methods such as galvanization, epoxy coating, or polyethylene wrapping. These coatings act as barriers between the steel surface and the external environment, protecting the pipes from moisture, chemicals, and other corrosive elements.
Q:What is the difference between steel pipe and tubing?
Steel pipe and tubing serve various purposes, but they possess distinct dissimilarities. The fundamental distinction between them stems from their shape and dimensions. Steel pipe, ordinarily circular in shape, features a hollow interior. It is manufactured in a range of sizes and thicknesses to accommodate diverse pressure and temperature prerequisites. Steel pipe frequently finds employment in construction, plumbing, and the oil and gas industries for the conveyance of fluids or gases. Conversely, steel tubing can adopt a variety of shapes, such as circular, square, and rectangular. Unlike steel pipe, tubing is typically evaluated by its outer diameter and wall thickness. Structural applications, such as building frames, automotive components, and machinery, often employ steel tubing. Another divergence between steel pipe and tubing lies in their manufacturing processes. Steel pipe is typically fashioned from solid steel billets, which are heated and stretched to produce a seamless or welded tube. On the other hand, tubing can be generated through diverse methods, including hot or cold rolling, welding, or extrusion. In terms of strength and durability, both steel pipe and tubing offer excellent qualities. Nevertheless, the particular requirements of the application will dictate which one is more suitable. Steel pipe is frequently selected for high-pressure or high-temperature applications, whereas steel tubing is favored for structural purposes or when a specific shape is necessary. In summary, the primary disparity between steel pipe and tubing resides in their shape, measurement techniques, and manufacturing procedures. While steel pipe possesses a round shape and is measured by its inner diameter, tubing can adopt various shapes and is usually measured by its outer diameter. Both steel pipe and tubing find extensive use in diverse industries, but the choice depends on the specific application and requirements.
Q:What is the composition of steel pipes?
Steel pipes are primarily composed of iron and carbon, with small amounts of other elements such as manganese, silicon, and sulfur.
Q:What's the difference between the fastener type steel pipe scaffold, the floor type steel pipe scaffold and the overhanging type steel pipe scaffold?
It is made up of steel pipe, fastener, base, foot board, safety net and so onSteel pipe rod: generally there are two kinds, an outer diameter 48mm, wall thickness 3.5mm; another kind of outer diameter 51mm, wall thickness 3mm; according to its location and function is different, can be divided into vertical pole, horizontal rod, sweeping rod, etc..Fasteners: fastener is the connection between the steel tube and steel tube, which has three forms, namely the right angle fastener, rotating fastener, butt joint fastener: rectangular fastener for connecting the two vertical pipes, it depends on the friction between the fastener and the steel pipe to transfer load. Swivel fastener: used for connecting two steel tubes intersecting at any angle.
Q:What are the common grades of steel used in pipes?
The common grades of steel used in pipes include ASTM A53, ASTM A106, and API 5L.
Q:How do steel pipes handle ground settlement?
Steel pipes are generally robust and durable, making them well-suited for handling ground settlement. The flexibility and strength of steel allow the pipes to withstand the shifting and settling of the ground without significant damage. Steel pipes have a high resistance to deformation, which means they can maintain their shape and structural integrity even when the ground settles or moves. When the ground settles, steel pipes can accommodate the movement by flexing and bending slightly. This flexibility allows them to adjust to changes in the ground without breaking or cracking. Additionally, steel pipes are often designed with joints that can absorb and distribute stress caused by ground settlement. Furthermore, steel pipes have a smooth interior surface that minimizes friction and resistance to the flow of materials. This feature is particularly important when the ground settles because it reduces the likelihood of clogs or blockages due to debris or sediment settling in the pipes. In summary, steel pipes are well-equipped to handle ground settlement due to their strength, flexibility, and resistance to deformation. They can adapt to the movement of the ground without compromising their structural integrity, making them a reliable choice for various applications, including underground infrastructure and pipeline systems.
Q:How do you inspect steel pipes for defects?
The inspection of steel pipes for defects requires a methodical approach that combines visual examination, non-destructive testing (NDT) techniques, and specialized equipment. The following are the typical steps undertaken to inspect steel pipes for defects: 1. Visual Examination: Commence by visually inspecting the external surface of the pipe, searching for any visible indications of defects, including cracks, dents, or corrosion. Particular attention should be given to welds, joints, and areas prone to stress or damage. 2. Ultrasonic Testing (UT): Ultrasonic testing is commonly employed to identify internal defects in steel pipes. This technique involves transmitting ultrasonic waves into the pipe and then interpreting the echoes received. Any irregularities in the internal structure, such as cracks or voids, can be identified and analyzed. 3. Magnetic Particle Inspection (MPI): MPI is a widely utilized technique for detecting defects on or near the surface, such as cracks, seams, or other discontinuities. This method involves applying a magnetic field to the pipe and subsequently applying ferromagnetic particles (usually iron-based) to the surface. These particles accumulate and form visible indications at areas where magnetic flux leakage is caused by defects. 4. Eddy Current Testing (ECT): Eddy current testing is suitable for detecting surface and near-surface defects in conductive materials like steel. This technique involves inducing an alternating current into the pipe and monitoring changes in the electrical currents induced by any present defects. These changes are then analyzed to identify and evaluate the defects. 5. Radiographic Testing (RT): Radiographic testing is conducted by exposing the steel pipe to X-rays or gamma rays and capturing radiographic images of the pipe. This technique allows for the detection of internal defects, such as cracks, porosity, inclusions, or variations in wall thickness. The radiographic images are subsequently examined for any indications of defects. 6. Dye Penetrant Inspection (DPI): DPI is a method used to identify defects on the surface of steel pipes. It involves applying a liquid dye to the surface, which penetrates into any surface cracks or flaws. After sufficient time for the dye to seep in and react, excess dye is removed, and a developer is applied to draw out the dye from the defects, rendering them visible. 7. Pressure Testing: Pressure testing entails pressurizing the steel pipe to a predetermined level and monitoring for any pressure drops or leaks. This test ensures that the pipe can withstand the required pressure without any structural defects. It is worth noting that the choice of inspection technique depends on various factors, such as the type of defect being sought, the size and characteristics of the pipe, and the specific industry standards and regulations. Inspection professionals with expertise in NDT methods and equipment are typically employed to ensure precise and dependable results.
Q:How do you protect steel pipes from fire?
To protect steel pipes from fire, there are several measures that can be taken. One commonly used method is to apply fire-resistant coatings or paints to the surface of the pipes. These coatings or paints are designed to withstand high temperatures and provide a barrier that prevents the heat from reaching the steel. Another effective way to protect steel pipes from fire is to wrap them with fire-resistant insulation materials. These materials act as a buffer, reducing the heat transfer and slowing down the spread of fire. Insulation materials such as mineral wool or ceramic fiber blankets are commonly used for this purpose. In addition, it is important to ensure that the steel pipes are properly installed and supported. This includes maintaining proper clearance from other flammable materials and avoiding overcrowding or obstructions that could impede the flow of air around the pipes. Adequate spacing between pipes is also crucial to prevent the transfer of heat from one pipe to another. Furthermore, it is recommended to incorporate firestop systems when steel pipes pass through fire-rated walls or floors. Firestop systems consist of fire-resistant materials and seals that prevent the spread of fire and smoke through openings or penetrations in fire-rated barriers. Regular maintenance and inspections are essential to ensure the ongoing effectiveness of the fire protection measures. Any damage or deterioration of the coatings, insulation, or firestop systems should be promptly repaired or replaced to maintain the fire resistance of the steel pipes. Overall, a combination of fire-resistant coatings, insulation, proper installation, and maintenance practices are crucial in protecting steel pipes from fire hazards. These measures help to minimize the risk of fire-related damage and ensure the safety of both the pipes and the surrounding environment.

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