Shenzhen Liying Hardware Building Materials Co., Ltd. is located at the intersection of the roads between the beautiful Futian District of Shenzhen and the Hong Kong Special Administrative Region, with unique location and environmental advantages.
The company was founded in 2020. After years of development, the company has total assets of hundreds of millions of yuan, with import and export trade as the main business, the company strives to become a global supply chain management integrated service provider, has a large number of professionals, involved in six series of products, the main product is metal wire, rope and its extension products manufacturing, annual sales capacity of 400,000 tons.
Why Choose Us
Quality control
For each process,we have strict inspection standards,and we always insist that quality is life.
One-stop solution
With rich experience and one-to-one service,we can help you choose products and answer technical questions.
Competitive price
We have a professional purchasing team and costing team,trying to reduce costs and profits,and provide you with a good price.
24h online service
You can contact us to inquire about pre-sales, sales, and after-sales services, and we will give you a very satisfactoryWe are at your service online 24 hours a day.
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STAINLESS STEEL PIPEStainless steel pipes are long, hollow tubes made from a combination of alloyed chromium and nickel. They offer superior corrosion resistance to ordinary steel pipes and higher levels of strength and
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LARGE DIAMETER 48 INCH SPIRAL WELDED STEEL PIPE/ ELECTRIC...Penstock Pipe belong to special equipment, and according to the definition of the Regulations on Safety Supervision of Special Equipment, they refer to tubular equipment that uses a certain pressure
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Galvanized PipeWe have European standard, American standard, Japanese standard and other full series of product certification, from raw materials to finished products through 219 to test procedures, neither let a
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SPIRAL WELDED STEEL PIPEStandard: API, ASTM A53, bs, API 5L, ASTM A500,ASTM A501,EN10219,EN10210,GB/T6728,GB/T9711,GB/T3094,GB/T3091,JIS G3466 Thickness: 4-30mm Outer Diameter: 219mm-2032mm as client requirement
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RECTANGULAR HOLLOW SECTIONSThickness: 0.5 - 60 mm OD(outer diameter): square:10*10mm-1000*1000mm rectangular:10*15mm-800*1100mm Section Shape: Square or rectangular Place of Origin: Tianjin, China Application: Structural type
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JAPANESE STANDARD JIS G3466 SQUARE TUBE HOLLOW SECTION TU...· Thickness: 0.5 - 60 mm · OD(outer diameter): square:10*10mm-1000*1000mm rectangular:10*15mm-800*1100mm · Section Shape: Square or rectangular · Place of Origin: Tianjin,
What Is Galvanised Pipe
Metric Roller Chain Sprocket can be used in almost every type of system. Used in conveyor systems such as conveyors, it can transport food, beverages, grain, and other materials from one place to another. Used in the transmission system, it transfers power from a source such as the engine to various components such as the wheels. Therefore, the product is also widely used in fields such as machine manufacturing,agricultural equipment, automobiles, and military equipment.
Benefits of Galvanised Pipe
Rust protection
By providing an extra layer the rust must go through if it becomes contaminated. Rust can be easily caused by the iron in steel reacting with oxygen and water which will lead to the object deteriorating. With zinc coating, it is harder for these elements to cause such a reaction.
Easy Inspection
The inspection process for galvanized pipe is simple and straightforward. Galvanized coatings can be examined by eye, and their thickness can be tested with simple, non-destructive methods.
Durability
Galvanized pipes can last upwards of 50 years in most rural regions, and between 25 to 40 years in more urban and coastal areas, showcasing their longevity.
Economic
Given their extended lifespan and minimal maintenance requirements, galvanized pipes often prove more cost-effective in the long run than alternatives.
Safety
These pipes don’t flake, meaning the water or substance they carry remains uncontaminated. This is particularly important in plumbing scenarios, but won’t matter much if you’re interested in this material for fencing.
Versatility
Galvanized steel pipes are suitable for a wide range of applications, including water supply systems, plumbing, gas pipelines, outdoor structures, fencing, and more. They are compatible with various fittings and connectors, providing flexibility in installation.
Types of Galvanised Pipe
Hot-dip galvanizing
Is currently considered to be one of the best ways to galvanize steel pipes due to its durability and corrosion resistance. The method involves immersing the metal into a bath of molten zinc in 450 degrees Fahrenheit. This process is completed when the steel tube (or EN (Euro Norm) or ASTM (American Society for Testing and Materials)) standard material is coated with approximately 30 to 40 microns of pure zinc.
Electroplating
Is another popular way to galvanize steel tubes due to its high-quality finish and relatively cheap cost compared to other methods such as hot-dip galvanization. Electroplating uses electrical currents in order to deposit a thin layer of chromium, nickel or zinc on top of an already existing metal surface.
Mechanical plating
Also called mechanical polishing, is a low-cost alternative that involves adding a thin layer of zinc using an abrasive blasting (shot peening) method. This type of galvanizing process is not as popular due to its lower quality finish and tendency to flake or peel off.
Plastic coating
Is the least-used method for galvanizing steel tubes since it has limited functionality and poor corrosion resistance.

Process of Galvanised Pipe
The manufacturing process of galvanized steel pipes involves several steps to ensure a durable and reliable end product. Here is a brief overview of the process:
Cleaning
The steel pipes are thoroughly cleaned to remove any impurities or residues, ensuring proper adhesion of the zinc coating.
Pickling
The pipes are then immersed in an acidic solution to remove any mill scale or oxides present on the surface. This step further prepares the steel for the galvanizing process.
Galvanizing
The cleaned and pickled pipes are submerged in a bath of molten zinc. Through a metallurgical reaction known as hot-dip galvanizing, the zinc forms a tightly bonded coating on the steel surface.
Cooling and inspection
After galvanization, the pipes are cooled and inspected for quality control. This step ensures that the zinc coating is uniform and free from any defects.
What Are The Signs of Galvanized Pipe Corrosion?
Discoloration
The underlying steel may discolor as the zinc coating wears away. You might notice reddish or brownish patches on the surface of the pipe.
Rust Formation
Once the zinc coating is compromised, the steel underneath is exposed to the elements, leading to rust formation. Rust can appear as orange or reddish-brown flakes on the surface of the pipe.
Reduced Water Pressure
Corroded pipes may develop internal buildup and scale, which can restrict water flow and lead to reduced water pressure in your fixtures.
Leaks
Corrosion weakens the pipe’s integrity, making it more susceptible to developing leaks. You might notice water spots, dampness, or drips around the affected pipes.
Bad Taste or Odor
Corrosion can alter the taste and smell of your tap water. If you notice a metallic or unpleasant taste or odor, it could be due to corrosion.
Changes in Water Color
Corrosion can sometimes cause the water to appear cloudy or have a brownish tint. This can be a result of rust particles getting into the water supply.
Larger Water Bills
If you have a sudden increase in your water bills, it could be due to leaking pipes caused by corrosion.
Visible Damage
In more advanced stages of corrosion, the pipe may become visibly damaged, with areas that appear pitted, flaked, or perforated.
How to Clean Galvanized Pipe Corrosion?
Materials You’ll Need
Wire brush or steel wool
White vinegar or rust remover solution
Bucket or container
Clean cloth or rag
Protective gloves
Safety goggles
Rust-inhibiting primer
Paintbrush or spray paint (galvanized metal paint)
Step By Step Process




Remove loose rust: Use a wire brush or steel wool to scrub the corroded areas’ surface gently. This will help remove loose rust, dirt, and debris. Be careful not to scrub too aggressively, as you don’t want to damage the underlying metal.
Vinegar soak: If the corrosion persists, create a solution of white vinegar and water (1:1 ratio) in a bucket or container. Submerge the corroded parts of the galvanized pipe in the vinegar solution and let them soak for a few hours or overnight. The vinegar will help dissolve and loosen the rust.
Scrubbing and rinsing: After soaking, use the wire brush or steel wool again to scrub the corroded areas gently. This should remove the remaining rust and any loosened particles. Rinse the pipe thoroughly with clean water to remove any vinegar residue.
Rust remover: If vinegar doesn’t fully remove the rust, you can use a commercial rust remover according to the manufacturer’s instructions. Wear protective gloves and follow safety guidelines while using the product.
Rinse and dry: Rinse the pipe thoroughly with clean water to remove any traces of the rust remover solution. Dry the pipe with a clean cloth or rag to prevent pipeline corrosion in the future.
Apply Rust-Inhibiting Primer: To prevent corrosion, apply a rust-inhibiting primer to the cleaned and dried pipe. Follow the manufacturer’s instructions for application. Then, allow the primer to dry completely.
Painting (Optional): You can apply a coat of galvanized metal paint to the primed surface for extra protection and a finished appearance. This paint is specifically designed for galvanized metal and provides additional corrosion resistance.
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FAQ
Q: What industry will purchase Galvanized Pipe?
Q: What do customers care about when purchasing?
Q: Certainly, here is some purchasing advice to consider when buying galvanized pipes:
Q: What is galvanized pipe good for?
Q: Why are galvanized pipes a problem?
Q: What is the difference between a regular steel pipe and a galvanized steel pipe?
Q: Is it safe to drink water from galvanized pipes?
Q: Will galvanized pipe burst?
Q: Do I need to replace my galvanized pipes?
Q: Do plumbers still use galvanized pipes?
Q: Does homeowners insurance cover galvanized pipe replacement?
Q: Is black pipe stronger than galvanized?
Q: What is black plumbing pipe called?
Q: Why can't galvanized pipe be used for gas?
Q: Is PEX better than galvanized pipe?
Q: How do you clear clogged galvanized pipes?
Q: What does galvanized plumbing look like?
Q: How do you test for galvanized pipes?
Q: How long does it take for galvanized pipe to rust?
Q: Can you paint galvanized pipe?
Q: How do you cut galvanized pipe?
Q: Why can't you weld galvanized steel?
Q: Can galvanized pipes be cleaned?
As one of the most professional galvanized pipe manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to buy cheap galvanized pipe in stock here from our factory. Contact us for quotation.
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