Welcome to Wanzhi Group Co., Ltd

On July 21, the galvanized pipes ordered by Brazilian customers began to be loaded and shipped to the port. In the hot weather, the workers did their best to finish the work and make sure the products were intact. This shipment will arrive in Brazil soon. Here are the pictures of the loading for your reference.

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Workers Carry Galvanized Pipes

Galvanized Pipes to Brazil

27 Tons Galvanized Pipe

27 Tons Galvanized Pipe

Each batch of goods produced by Wanzhi Steel undergoes strict quality inspection. We can provide customers with the corresponding test certificates. Therefore, you don’t need to worry about the quality at all. If you are planning to purchase steel, please contact us for more details. Wanzhi Steel is looking forward to being your partner.

  • 17 years+

    Metal material industry exprience

  • 12 years+

    Import and export experience

  • 120 +

    Countries / regions have global cooperation

  • 1000 +

    Annual export volume

Cold drawn steel tube, also called CDS tube, is a circular steel tube with a hollow section and no seams. It has the features of uniform tolerance, enhanced machinability, high strength, and a bright surface compared to other hot-finished steel tubing products. This makes it widely used in many applications that require high strength, such as frameworks, heavy equipment, engine assemblies, gas tubes, etc.

Common Size: 12mm, 14mm, 18mm, 20mm, 25mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm, 42mm, 52mm

Theoretical Formula: [(outer diameter – wall thickness) * wall thickness] * 0.02466

 Cold Drawn Tube

Cold Drawn Tube

CDS Tubes

CDS Tubes

 Cold Drawn Tubes

Cold Drawn Tubes

What Is Cold Drawn Process?

The cold drawing process refers to the drawing of material at room temperature to achieve a certain shape and certain mechanical properties.

Cold-drawn steel pipes are produced using the cold-drawing process. In addition, the cold-drawing process can be used to produce large-diameter pipes as well as seamless steel pipes up to 50 mm, etc. For more information, please contact Wanzhi Steel to obtain.

How Is CDS Tube Made?

The process of manufacturing cold drawn steel tubes is relatively complicated, generally by the following steps:

1. Raw Material Selection

– Materials with low hardness and good plasticity are preferentially selected under the condition of guaranteed strength of steel.
– The specifications of the billet should be selected to ensure that its elongation is between 20% and 40%.
– The surface of the billet should not have defects like pits, cracks, folds, scars, etc.
– Do not use billets that have been placed for too long a time.

CDS Tubes in Wanzhi Steel

CDS Tubes in Wanzhi Steel

High Quality Cold Drawn Tubes

Cold Drawn Tubing Factory

Cold Drawn Tubes in Stock

Cold Drawn Tubes in Stock

2. Pretreatment

– The pickling and rust removal should be carried out thoroughly.
– The component concentrations of the phosphating solution and saponification solution should be tested frequently to ensure that the production indicators of the two are up to standard.
– The temperature and operation time of the solution should be strictly controlled.

3. Manufacturing

The following is the CDS tube production process of Wanzhi Steel for your reference:

Billet preparation → heating → cutting → piercing → hot rolling (second piercing) → heading → annealing → pickling → multi-pass cold drawing → heat treatment → straightening → end cutting → finishing → inspection → storage →delivery

How to Prevent Cold Drawn Steel Pipe from Rusting?

If the cold-drawn steel pipe is not used for a long time, its internal rust may appear. So, how to prevent cold-drawn steel pipe from rusting? Wanzhi Steel tells you the answer.
1. Store in a ventilated and dry storage room.

2. Avoid contact between cold-drawn steel pipes and clothes substances.

3. Treat its surface. The general treatment methods are hot-dip galvanized and electro-galvanized.

4. Seek the help of experts.

Cold Drawn Steel Tubes

Cold Drawn Steel Tubes

Cold Drawn Tubes Production Line

Production Line

Cold Drawn Pipe

Cold Drawn Pipe

How To Install Cold Drawn Steel Tube?

When installing cold-drawn steel pipes, you should pay attention to the following aspects.

1. Before installing, check the pipe size and test it. If it does not meet the corresponding use requirements, the relevant personnel must contact the supplier to replace it in time.

2. Prepare the construction site and clean the base and bottom.

3. When installing, strictly abide by the installation operations of drawings.

Wanzhi Steel Factory

Wanzhi Steel Factory

CDS Tubes for Sale

CDS Tubes for Sale

Cold Drawn Tubes in Wanzhi

Cold Drawn Tubes in Wanzhi

Contact Wanzhi Steel for More Details

Cold drawn steel tubes can provide high-performance solutions for different demanding applications. Wanzhi Steel can provide you with different specifications and sizes of cold drawn steel pipes according to your different needs. In addition, we also sell hot rolled steel pipes. You can choose according to your actual needs. If you want to know more details, contact us now!

The application of stainless steel tubes is common in our life. Why are many projects happy to use stainless steel pipes? It has a lot to do with its good corrosion resistance. So, what are the advantages of stainless steel pipes? Next, Wanzhi Steel will tell you the answer.

Stainless Square Pipe

Stainless Square Pipe

SS Round Pipes

SS Round Pipes

Stainless Steel Pipe

Stainless Steel Pipe

1. Corrosion Resistance

The element chromium has excellent corrosion resistance. And stainless steel pipe will add this component in the manufacturing, the surface will form a thin and dense layer of chromium-rich oxide film. This makes stainless steel pipe have good corrosion resistance in water (including soft water). Even if the stainless steel pipe is buried in the ground, it will still not be easily corroded.

2. High Strength

The strength of stainless steel pipe is 3 times that of copper pipe and 8-10 times that of plastic pipe. Taking stainless steel water pipe as an example, its high strength greatly reduces the possibility of leakage caused by external forces, which can effectively protect and utilize water resources.

3. Durable

Stainless steel pipe has a long service life of 100 years, far more than plastic pipe and other pipes. It can withstand an instant pressure of 89Mpa, which is 10 times more than plastic pipe and 3 times more than copper pipe. In addition, it is resistant to high temperatures and high pressure.

Stainless Steel Tubes

Stainless Steel Tubes

SS Steel Pipes in Wanzhi

SS Steel Pipes in Wanzhi

Small Size Stainless Pipes

Small Size Stainless Pipes

4. Cost-effective

Although on the surface the price of stainless steel pipe is much higher than carbon and galvanized pipe. However, stainless steel pipes can last longer and do not require extra maintenance, which will save a lot of unnecessary expenses. Therefore, in the long run, the cost performance of stainless steel pipe is higher than that of ordinary pipe.

5. Beautiful Appearance

The stainless steel tube has a bright appearance inside. It is very suitable for decorative buildings, such as fences, handrails, etc. There are some large buildings that also use stainless steel tubes, which are very ornamental.

6. Low Carbon Environmental Protection

Many of the utensils we use in our lives are iron products. As iron oxidation occurs in the air, over time, the surface of iron utensils continues to corrode, producing a foul odor, which will bring pollution to the local environment. And stainless steel belongs to the green environmental protection materials. The used stainless steel pipe can be reused back to the furnace, without any waste material to pollute the environment.

Stainless Steel Pipes for Sale

Stainless Steel Pipes for Sale

SS Square Tubes

SS Square Tubes

Stainless Steel Pipe Factory

Stainless Steel Pipe Factory

Benefits of Using Stainless Steel Plumbing

Stainless steel is a healthy material that can be implanted in the human body, so it is very beneficial to choose stainless steel pipes for home drinking water plumbing. In addition, the smooth inner wall of stainless steel pipes will not accumulate impurities and will not be contaminated by bacteria. Therefore, with stainless steel plumbing, you do not need to worry about the water quality being affected and it can prevent secondary contamination of water.

Stainless Steel Household Water Pipe

Household Plumbing

SS Pipes for Water Pipes

Stainless Steel Water Pipe

Water Tube

Water Tube

Conclusion

Wanzhi Steel produces stainless steel pipes for sale all over the world. We have a complete range of stainless steel pipes, including 304/304L and 316/316L series. You can choose according to your actual needs. If you are looking for stainless steel pipes, please let us know the type and specific specifications you need. Our sales staff will contact you for a quote. Contact us now!

Wanzhi Steel is one of the top galvanized steel pipe manufacturers in China. We provide high quality steel pipe products to customers all over the world. In addition, we can also customize galvanized pipe solutions for our customers. If you are planning to buy galvanized pipes, you should learn about galvanized pipes in detail. Below is the information on galvanized pipe provided by Wanzhi Steel for your reference.

Galvanized Steel Pipes in Wanzhi

Galvanized Steel Pipes

Galvanised Pipes

GI Steel Pipes

Galvanized Pipes for Sale

Galvanized Pipes for Sale

1. Length of Galvanized Pipe

Usual length: The usual length of galvanized steel pipe is 6 m. The allowable body weight of each batch of galvanized pipe is not more than 5% of the total weight and the length is not less than 2 m.

Cut-to-length: The allowable deviation of cut-to-length of galvanized steel pipe is +20mm.

Multi-length: The allowable deviation of the multi-length of galvanized steel pipe is +20mm. in addition, each multi-length should leave a margin of 5mm-10mm for cutting.

2. Manufacturing Methods

Galvanized pipes are often manufactured using two production methods: hot-dipped galvanized and cold-galvanized. The zinc layer of hot-dip galvanized steel pipe is thicker and has strong anti-corrosion ability. Cold galvanized steel pipe has very little galvanization, only 10-50g/m2, and its corrosion resistance is much worse than that of hot galvanized pipe.

3. Shapes of Galvanized Tubes

Galvanized pipes can be manufactured in round, square, and shaped (rectangular) shapes. Generally, galvanized round tubes are often used for fluid transportation pipes. And galvanized square tubes are often used for structural construction. You can choose according to your project needs.

GI Square Pipes for Sale

GI Square Pipes

Round Galvanized Steel Pipes

Round Galvanized Steel Pipes

Galvanized Steel Rectangular Pipes

Galvanized Steel Rectangular Pipes

4. Brands of Galvanized Pipes

Brand Q195、Q215、Q235、Q295、Q345
Nominal wall thickness(mm) 2.0、2.5、2.8、3.2、3.5、3.8、4.0、4.5
Coefficient(c) 1.064、1.051、1.045、1.040、1.036、 1.034、1.032、1.028

5. Delivery Time

Wanzhi Steel will deliver on time and within the contracted time frame without delaying the start of your project. In addition, we will take the initiative to communicate with you about the progress of your project so that you can keep track of the process.

6. Packaging Methods

To transport galvanized pipes, there are bare and bundled packages. The specific situation also needs to be decided according to the actual transportation situation. If you have other requirements on packaging methods, you can contact us for communication and consultation.

Galvanized Pipes in Stock

Galvanized Pipes in Stock

Galvanized Pipe Storage

GI Steel Pipe Storage

Galvanized Pipe for Sale

Package of Galvanized Pipe

Inspection Method of Galvanized Steel Pipe

1. Surface Inspection

After the production is finished, Wanzhi Steel’s staff will inspect the internal and external surfaces of the galvanized steel pipes one by one to ensure that each galvanized pipe is intact.

2. Dimensional Inspection

Before the steel pipe is galvanized, its dimensions are measured one by one with a gauge of sufficient accuracy. The purpose of this is to ensure that the dimensional deviation of the galvanized pipe is acceptable.

3. Thread Inspection

For galvanized steel pipes with threads, according to YB822, the threads should be checked one by one with a ring gauge.

Galvanized Pipes Quality Testing

Quality Testing

Galvanized Steel Pipe Quality Inspection

Galvanized Steel Pipe Quality Inspection

Conclusion

Wanzhi Steel offers customization, machining, and cutting services. Tell us your specific needs and the specifications of the galvanized pipe required. We will provide you with the most reliable advice based on the specific information you provide. In addition, our website has information on other products for you to browse. We are at your service 24/7, contact us now for more details.

The price of carbon steel pipe in the market is about 580-700 USD per ton. Compared with other materials, the price of carbon steel pipe is not too expensive. Wanzhi Steel produces high-quality carbon steel pipes and offers discounts for large-volume purchases. In addition, we can provide project solutions for our customers. If you want to know more about carbon steel pipes, please contact us.

Carbon Pipes in Wanzhi Steel

Carbon Pipes

Round Carbon Pipes

Round Carbon Pipes

Carbon Steel Rectangular Pipes

Carbon Steel Rectangular Pipes

Carbon and Stainless Steel Pipe Price Comparison

Compared with stainless steel pipe, the price of carbon steel pipe is relatively cheap. Why is the price of carbon steel pipe cheaper? It depends on the following aspects.

1. Different Difficulty of Production Process

From the point of view of the production process of the two tubes, carbon steel pipe is simpler than stainless steel pipe. Carbon steel pipe with carbon steel as raw material, mainly composed of iron and carbon. And stainless steel pipe in addition to carbon, and iron, also contains chromium, nickel, copper, and other metal elements.

2. Different Processing Costs

The processing cost is different and the selling price will be different. The material used to produce stainless steel tubes is more expensive and therefore the price will be elevated. The price of stainless steel pipe in the market reaches $2000 per ton.

3. Big Difference in Performance

The corrosion resistance of carbon steel pipe is not as good as stainless steel pipe. Especially when used outdoors, carbon steel pipe is prone to rust and corrosion. Stainless steel pipe contains chromium, which can resist rust and corrosion. This is the reason why the price of stainless steel pipe is higher than that of carbon steel pipe.

Carbon Steel Pipe

Carbon Steel Pipe

Stainless Steel Pipes

Stainless Steel Pipes

Stainless and Carbon Steel Pipe

Stainless and Carbon Steel Pipe

Wanzhi Steel – Offers Factory Sales Prices

Wanzhi Steel is a well-established carbon steel pipe manufacturer in China, and we have rich experience in exporting. We can supply high-quality steel pipe products to customers all over the world. Compared with other manufacturers, we have the following advantages.

No middleman: There is no middleman with Wanzhi Steel, which saves a large amount of middleman costs for customers.

Have exclusive production lines: We have 3 carbon pipe production lines, which can satisfy customers who want to order in large quantities.

Support customization: You can customize carbon steel pipes with different shapes, wall thicknesses, and lengths at Wanzhi Steel.

Factory sales price: Wanzhi Steel has always provided discounts for customers.

Carbon Pipes in Wanzhi

Carbon Pipes in Wanzhi

Square Carbon Steel Pipes

Square Carbon Steel Pipes

Wanzhi Steel Factory

Wanzhi Steel Factory

Conclusion

If you are looking for carbon steel pipe, please let us know the type, shape, and size requirements you need. We will quote you according to the specific specifications you give us. In addition, we also offer stainless and galvanized steel pipe products. You can decide the final product you want to order according to your actual needs. Contact us now to get the latest quotation for carbon steel pipe.

Under normal conditions of use, seamless steel pipes have a life span of decades. However, with the passage of time, aging and rusting will also occur. If you want to extend the service life of seamless pipe, you must first know under which circumstances it will shorten its life. Wanzhi Steel, as a Chinese steel pipe manufacturer with 17 years of experience in the industry, will give you the answer.

Seamless Steel Pipes

Seamless Steel Pipes

Stainless Seamless Pipes

Stainless Seamless Pipes

Seamless Steel Tubes

Seamless Steel Tubes

Factors Affecting the Life of Seamless Tubes

1. Poor Quality

When producing seamless steel pipe, if the manufacturer cuts corners and uses poorer materials, then you will get a poor quality seamless pipe. A poor-quality seamless pipe will have internal and external warping, scars, and cracks, and will be more prone to rusting.

2. Prolonged Exposure to Wet Conditions

When a seamless tube is wet for a long time, iron and oxygen produce a compound – rust. Once a seamless tube rusts, it means that its service life will be greatly reduced. This is why it is important to keep seamless steel tubes in a dry environment.

3. Contact with Corrosive Substances

Take stainless steel seamless pipe as an example, if its surface has adhered to substances containing acids, alkalis, and salts (such as alkaline water and lime water), local corrosion will occur. If this happens in the long run, it may be completely damaged.

Seamless Pipe Rust

Seamless Pipe Rust

Seamless Steel Pipe Production Line

Production Line

High Quality Seamless Pipes

High Quality Seamless Pipes

Ways to Extend Service Life of Seamless Steel Pipes

1. Correct Cleaning

Regular cleaning of the seamless tube is key to prolonging its life. When cleaning the seamless steel tube, use some weak acidic substances to clean it. If the acid is too strong, it will make the surface of the steel pipe dull. Always remember to dry with water after cleaning to avoid residue on the surface of the seamless tube.

2. Avoid Contact with Corrosive Substances

Long-term contact with corrosive substances will not only shorten the life of the seamless tube but may also make the seamless tube obsolete. Therefore, if you want to prolong the life of your seamless steel pipe, remember not to bring it into contact with chemical acids, alkalis, and salts.

3. Correct Storage

The right way of storage can make good protection of the seamless tube. During the storage of seamless steel pipes, a suitable site should be selected. It is best to store seamless steel pipes in a clean, dry, naturally ventilated area free of harmful substances. In addition, it is important to store them in a classified manner, because seamless pipes are also prone to rust and corrosion when in contact with other materials.

Seamless Steel Pipes for Sale

Seamless Steel Pipes for Sale

Seamless Steel Tube Factory

Seamless Steel Tube Factory

Seamless Tube Packaging Method

Packaging

Contact Wanzhi Steel for Seamless Pipe Solutions

Wanzhi Steel sells high-quality seamless pipes, including stainless steel seamless pipes, galvanized seamless pipes, and so on. You can choose different materials and sizes of steel pipe products according to your needs. If you are not quite sure what material and size of the seamless pipe are suitable for your project, you can contact Wanzhi Steel to get project solutions. In addition, our website has more knowledge about seamless pipes for your reference. We are at your service 24/7, contact us now.