Being one of the most used materials in the world, steel pipes have applications in several industries that you might have yet to know. From the construction industry to interior design and even automobile manufacturing, steel pipes with their several advantages can be found everywhere. Buying steel pipes seems to be an easy task, but how to buy them correctly and effectively can be a difficult one. In the blog below, Chinh Dai Steel will show you things you should consider before buying steel pipes.
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Known as the most utilized product made from steel, steel pipes are cylindrical tubes with thin walls and hollow structures that are used in many ways in manufacturing and infrastructure. Depending on the purposes, steel pipes can be galvanized or used for further manufacturing processes.
Steel pipes can be found anywhere in the world. The primary use of steel pipes is in liquid & gas (underground) transportation including oil, gas, and water. However, the main purpose of steel pipes is throughout the manufacturing and construction industry. With the strength, durability, and ability to withstand extreme temperatures, pressures, and destructive elements, steel pipes make it possible to be the initial part of every building & construction.
There are many ways to classify steel pipes but the most common method is based on their characteristics. We then have 04 popular classifications of steel pipes: carbon steel pipes, stainless steel pipes, black steel pipes, and galvanized steel pipes.
Being made of steel in which carbon is the main chemical element and determines the extent of the metal’s physical characteristics such as strength and toughness, carbon steel pipes are considered the most cost-effective type of steel pipes. During the manufacturing process, producers add carbon to iron so as to harden and strengthen the resulting metal.
Based on the purposes, carbon steel pipes are also classified as ultra-high carbon steel pipes, high carbon steel pipes, medium carbon steel pipes, low carbon steel pipes, and mild carbon steel pipes.
Carbon steel pipes are mainly used in transporting water and wastewater underground, in industrial operations involving high temperature…
Stainless steel pipes are widely known for their considerable corrosion resistance and in great demand in many countries. Also known as inox steel pipe, they are made of steel containing iron, carbon, and at least 10.5% chromium content, in which chromium is the main element. In stainless steel pipes, there is a passive layer that helps to protect the metal from deterioration which is made from the reaction between chromium and oxygen.
Stainless steel pipes are commonly used in construction, transporting fluids, and other industries such as automotive industries, pharmaceutics…
Black steel pipes are the most highly stable structured steel pipe for sale thanks to their convenience and high stability. Also called raw or bare steel pipes, black steel pipes are made of steel that is not covered with any kind of coatings. The ‘black’ in its name derives from the dark-colored iron oxide cover formed on its surface during the fabrication process.
Black steel pipes are also used in transporting water & oil and the construction industry, especially in making fences and scaffoldings.
Galvanized steel pipes are made of steel that is coated with several protective layers of molten zinc to prevent the pipes from rust and corrosion. The galvanization process was invented in the s and galvanized steel pipes have replaced lead-based pipes since then.
Mostly used as water conveyance and building materials, galvanized steel pipes are broadly applied in many industries such as automatic and general engineering industries, bus body, and railway bogies manufacturer…
Since steel pipes have many classifications and a wide variety of applications, we need to consider carefully before giving out the buying decision.
Below is a list of things that you should consider before choosing any steel pipes for your projects and constructions.
Before buying anything, you need to determine the exact classification of steel pipes you are in need of and what you are going to do with the pipes. As listed above, there are 04 types of steel pipes with different coating and characteristics. Carbon steel pipes are the least expensive pipes to get while stainless steel pipes do not rust. Galvanized steel pipes are coated with several layers of zinc which enhances the corrosion resistance and strength while black steel pipes can be used in many industries such as construction, fire fighting, fence making, scaffoldings…
Another step to get the correct steel pipes is to determine the grade of steel you need. You can base on international standards to pick out the most suitable steel pipes for the projects. The ASTM and ASME standards usually have piping specs that help you a lot in showing you which grades will do the best job. However, there are still differences between these two standards, which resulted from different testing methods applied. That’s why you should check the specs carefully when choosing the right grade of steel pipes.
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Besides, you can also count on SAE & AISI – the two other organizations that are well known for steel pipe grades. Their numbering system simplifies a lot of the more complex classifications of steel pipes, however, not the whole specifications when choosing the correct pipes.
When basing on international standards to find the correct steel pipes grade, you should refer to industry standards as well. For example, if you are looking for oil and gas transporting steel pipes, the API 5L standard will do the job. It is the industry standard for oil and gas transporting pipes. When there are a lot of standards to consider to make the buying decision, you should combine them together to have a full profile to narrow down what works best for your projects.
The customization options of steel pipes are also an important factor to consider when buying steel pipes. Of which, there are the 02 most popular options of customization: seamless or welded. The decision is mostly based on your choice of what would best suit your needs. However, most welded pipes are more cost-effective than seamless, and it becomes a huge thing to consider when you buy in bulk.
Also, the consistency from pipe to pipe, which enhances the wall thickness, also an important factor to count when choosing the customization option of steel pipes. Manufacturers will keep the consistency by checking the internal surface of steel pipes, which could be extremely difficult when it comes to seamless steel pipes due to the way they are made. Hence, if you are finding steel pipes with a high consistency from pipe to pipe, welded steel pipes are the best choice.
However, seamless pipes are without seams (of course) and have the advantage of consistent roundness. Hence, there will be no chance for a weak seam, which might lead to a headache problem for the projects in the near future.
Whatever you buy, buying in bulk always gets you a better price. Besides, you might have the added benefit of mixing steel pipes length and size or getting customize-to-need pipes; which you will never have once you buy in small quantities.
Besides, if you purchase pipes at full length, there might be extra benefits from manufacturers. To get this, you should pay attention to reputed manufacturers’ websites to know where the most savings are.
In case you are not concerned about the price, you still need to consider the quantity of steel pipes you need to get the correct quotation. Some steel manufacturers only sell steel pipes in exact quantities. Also, to avoid mistakes happening during the projects, you might want to buy extra steel pipes to take the initiative.
Specifying the steel pipes’ size might be a problem since it often contains plumbing terminology which is not familiar to most buyers. It’s essential to know the fittings and size before ordering any steel pipes. You can research the fittings and sizes based on manufactures’ charts, or consult with the sellers. If you buy in bulk, it’s easy to get steel pipes customized to your needs and wants.
Steel is strong already, but the coatings give out additional properties as it protects the steel itself from corrosion and harsh weather conditions. Hence, steel pipes with coatings are highly recommended when you are finding ones that are strong and durable. Others’ based on your needs and budget. Black steel pipes are the alternative option for galvanized steel pipes if you just need steel pipes to work on other projects such as fences, barricades… Meanwhile, galvanized steel pipes are strong and protect perfectly against corrosion and do the job better in transporting water.
Pre-painted steel pipes are also a good choice from residential to commercial with their multiple uses and competitive prices. It is durable yet also visually attractive, which is needed for any project.
Choosing the correct type, quantity and coating is not sufficient if you cannot find a reputable supplier that manufactures high-quality steel pipes. If you need to find trusted suppliers by searching and scrolling through the feedback section, here are some factors you should refer to:
Chinh Dai Steel supplies steel pipes and steel products that tick all the boxes. All products, from galvanized steel coils, galvanized steel pipes, black steel pipes to galvanized perforated purlins and agricultural supports such as cattle panels … are manufactured from carefully selected materials.
Chinh Dai Steel has experienced over 20 years of development in international markets. Chinh Dai Steel has 03 factories covering a total area of 10 hectares with a production capacity of 300,000 tons of steel pipes and about 250,000 tons of galvanized steel coils annually.
Since , Chinh Dai Industrial ranks No. 1 in Vietnam and Southeast Asia in terms of steel pipe export volume to Australia. The steel pipes and steel products from Chinh Dai are manufactured using high-quality materials, such as galvanized steel products with the zinc coating from Z120 – Z275. These products meet international standards such as ASTM (A500, A53 & A513) AS / NZ , JIS G, and EN and you can easily check the origins of every product on its own labels with QR codes.
Whether you are finding the steel pipes for personal or professional usage, getting the right steel pipes all comes down to research. Don’t let the information overwhelm you into making a rushed decision. Follow the steps, take the time and give out the final decision. Consistency makes all the difference in the world, and it’s the same process with choosing the right steel pipes.
Choosing the right material for your project is crucial. Steel is a widely used material for various manufacturing and industrial purposes. Galvanized steel is a popular building material due to its outstanding durability, versatility, price, and corrosion resistance. In this blog, we will discuss the five things that you should know about Galvanized Steel tubes.
Before that, let’s first learn about Galvanized Steel Tubes.
About Galvanized Steel Tubes and Manufacturing Process
Zinc-Iron coatings make galvanized tubes the most popular steel tubes used in construction. Galvanization is the process used to manufacture these steel tubes. In this process, steel tubes are coated with zinc to act as a barrier to corrosive elements and protect the base metal over a long period of time. High-quality steel tubes are the best choice for projects and industries, including agriculture, automotive, construction, etc.
When choosing steel tubes, you should consider these five things about Galvanized Steel Tubes for better decision making Clear all your doubts regarding APL Apollo Galvanized steel products so that you can choose the best for your construction.
Things you need to know about Galvanized Steel Tubes.
Inexpensive Building Material
Galvanized steel is cheaper than other structural steel products. It costs four times less than stainless steel. Because it is non-corrosive, it requires little maintenance. However, the welder needs protection from harmful zinc fumes while working with galvanized steel. In addition, the labor cost is half that of stainless steel. This reduces project costs considerably.
A Long-lasting Product
Galvanized steel structures can last more than 50 years in a sustainable environment. Galvanized steel can withstand severe water exposure for over 20 years. Besides, it requires little to no maintenance to keep the product in good condition.
● Highly Used in Auto Industry
Galvanized steel is used in cars. The majority of cars today are manufactured with zinc-coated bodies. After imported Japanese models started using galvanized steel in the s, American consumers began demanding it in car models. Subsequently, American car makers switched to these zinc-coating steel tubes.
● Used for Many Applications.
Galvanized steel tubes are strong enough to be used for railway vehicles, chemicals, machinery, construction, bridges, roads, etc. Galvanized square steel tubes are best suited to carry water, gas, oil, and other low-pressure fluids. The hot-dipped galvanized steel tubes have a uniform coating, strong adhesion, and long-life advantages.
● Electro Galvanization Process:
Pre-treated steel is still galvanized by hot-dipping in molten zinc and wiping away excess zinc, but there are also new methods to apply a protective layer of zinc. Electro galvanization is another process where a positively charged zinc anode is attached to a negatively charged applied to a steel sheet. It can also be galvanized with a zinc-aluminum mixture. The “dry galvanizing” or “shot blasting” process makes it highly adsorbent to paint, rubber, and powder coatings.
GI Pipes and Tubes
GI are galvanized iron pipes and tubes. They are also called coated iron pipes as they are immersed in zinc baths. They are steel tubes that are immersed in molten zinc using the galvanization process. This offers protection for the tubes from ageing and rusting. The corrosion resistance offered by the Galvanized iron pipes makes them a preferred choice for architects and designers for structural use.Galvanized iron products are classified into three grades depending on their weights and inner diameter thickness.
Advantages of GI Pipes:
Ideal for large projects – GI pipes are ideal for large building projects, manufacturing units etc because they are more durable and corrosion resistant. They help in the faster and more efficient execution of projects.
Cheaper maintenance- GI pipes have a zinc coating which improves the sturdiness and adds to the durability of the structure. The corrosion resistance of these GI tubes is very high leading to very low chances of leakage which leads to low maintenance.
Protection of pipes – Galvanization is the most effective and cost-effective way of protecting steel or iron from corrosion since it doesn’t involve much labour or complexity.
Enhanced performance- Galvanization increases the thickness of the pipes which enhances their performance. The inner diameter thickness improves the durability of the pipes. They are cheaper, lightweight and easy to handle making them a better choice for designers and architects.
GP Pipes and Tubes
GP stands for galvanized pipe. Their manufacturing process is different from GI tubes. GP tubes are made from pre-galvanized sheets.GP pipes are made of carbon steel sheets which are electroplated with Zinc and then rolled into pipes. In most homes, galvanized steel pipes are installed. APL Apollo was the first company to introduce GP Tubes in India.
Advantages of GP pipes
Improved life expectancy – GP pipes increase the longevity of pipes by preventing corrosion and mineral deposits. It is a lead-free alternative to water supply lines. They have an improved level of toughness which makes them more durable.
Increased corrosion resistance- Pre-galvanized GP pipes have higher corrosion resistance that improves the durability of the pipes.
Uniform microstructure- GP pipes are made from steel sheets of uniform thickness which provides a uniform microstructure to the tubes.
Difference Between GI and GP Pipes
APL Apollo manufactures both types of pipes. They are used for different applications. GI and GP has some differences that make it easier for customers to make decisions. Here are the following differences between Iron pipes and galvanized pipes:
GI pipes are carbon steel pipes immersed in galvanic baths to give them a zinc coating. On the other hand, GP pipes are made out of thin steel sheets that are first electroplated with zinc and then rolled into pipes.
The hot dip coating in GI pipes may not provide a uniform coating but it is a quick process. The electroplating process used for GP pipes is slower in comparison but provides a uniform coating.
GP pipes offer superior quality finishing than GI tubes.
Steel galvanized pipes are ideal for tubing or plumbing applications.
Raw water and rural water treatment applications often use GI pipes.
GI is easy to install and maintain than galvanized pipe but GP pipes are superior and have more longevity and finish.
In Conclusion
Galvanized steel tube is an eco-friendly product ideal for urban and coastal applications. It is one of the oldest building materials with tremendous demand in the market. APL Apollo is a leading manufacturer of galvanized steel products. They manufacture pre-painted galvanized steel sections and tubes that can be used in numerous applications in diverse industries. APL Apollo uses DFT and ERW technology to create superior-quality GI and GP pipes. You can check out their entire range at www.aplapollo.com.
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