Steel pipes are used in various industries ranging from construction, automotive, and manufacturing. Choosing the right steel pipe can be overwhelming, especially for professionals who are new to the industry. Here’s a comprehensive guide to help you choose the right steel pipe for your project.
One of the critical factors to consider when choosing a steel pipe is the material. Steel pipes come in various materials such as carbon steel, stainless steel, and alloy steel. The most commonly used material for steel pipes is carbon steel. It is durable, easy to fabricate, and cost-effective. Another popular choice is stainless steel, which is corrosion-resistant and suitable for pipelines that carry fluids or gases. Alloy steel, on the other hand, is stronger and can withstand high temperatures and pressure.
Another factor to consider is the size of the steel pipe. The size of the steel pipe is usually indicated by the nominal size or the inside diameter. Seamless carbon steel pipes are relatively smaller than welded steel pipes. The size of the pipe required for your project will depend on the application and the flow rate.
The thickness of the steel pipe is another crucial factor to consider. It is essential to choose the right thickness to prevent the pipe from breaking or corroding. The thickness of steel pipes can be classified as Schedule 10, Schedule 40, and Schedule 80. The schedule number indicates the wall thickness of the pipe. Pipes with a higher schedule number have a thicker wall and are suitable for high-pressure applications.
The ends of the steel pipe are also important when choosing the right steel pipe. Steel pipes come in two types of ends: plain ends and threaded ends. Plain ends are suitable for pipes that need to be welded, while threaded ends are used for pipes that need to be joined using couplings.
Choosing the right steel pipe depends on the application. Steel pipes can be used for various applications such as transport of fluids, gases, oil, and steam. The application will determine the type of steel pipe required, its size, and thickness.
The budget is another crucial factor to consider when choosing the right steel pipe. Steel pipes come in various prices depending on the material, size, and thickness. It is essential to choose a steel pipe that fits your budget and at the same time meets your requirements.
Choosing the right steel pipe for your project can be overwhelming, but with the right information, it can be easy. Consider factors such as the material, size, thickness, ends, application, and budget when choosing the right steel pipe. This will help you to choose a steel pipe that fits your requirements and budget.
Contact us today for further assistance on choosing the right steel pipe for your project. As a leading supplier of steel pipes, we are committed to providing our customers with high-quality steel pipes at affordable prices.
Large diameter steel pipe normally refers to the pipe diameter above 16 inch and up to 100 inch, it plays an important role in oil and gas transmissions. For long distance pipeline projects large diameter pipe could carry more liquid and with big flow rate. Especially for recent years, the use of large diameter steel pipe is increasing.
In most cases large diameter steel pipe is made in welded like LSAW pipe or SSAW pipe; More over, it also could be made in seamless by using hot expanding processes.
It shall be noted that for a high pressure pipeline large diameter seamless pipe is preferred. Since in welded type it is not expected as seamless types to bear the big pressure (the weakest point of the welded pipe is the welded seam on it). The welded seam can break or crack at anytime hence, people are looking for seamless large pipes for various things.
Almost all the steel material could used for making large diameter pipe, listed as blow for Carbon Steel, Chrome Moly Alloy pipes:
API 5L B, X42, X46, X52 to X80.
ASTM A53B
ASTM A252 Grade 2, 3
ASTM A671
ASTM A672
ASTM A691
ASTM A106B
If you want to learn more, please visit our website Xin Jiyuan.
Large diameter stainless steel pipe also required for a lot of industries, for liquid transmission, machine parts make. Mostly made in tig weld, material standard ASTM A312 or EN -3. Grades in:
TP304/L/H, S, S, S
TP316/L/H, S, S, S
TP310S/H, S, S
TP321/H, S, S
TP347/H, S, S
904/L
As we know maximum diameters for ERW pipe usually is 457 mm 16 inch, so we can say the pipe diameters is larger than this OD are known to be large diameters pipes.
For LSAW and SSAW large steel pipe: From 508 mm 20 inch to mm 100 inch.
For large diameter seamless pipe also refer to the pipe that more than 16 inch or 20 inch. Since the pipe larger than these sizes, will not be manufactured only by hot rolling, an additional process hot expanding will be applied. This way could enlarge the pipe diameters in a short time, with low cost and high efficiency, therefor it has became a modern way of manufacturing large seamless pipes.
Hot expanding process also known by thermal expansion process. It is to heat the pipe into a near transformation temperature, use corner skew rolling method or hot drawing method to expand seamless pipe diameters.
If you do not have ideas about the large diameter seamless pipe then it is very hard to buy one with good quality. Therefore, it is very important to know about it before purchasing.
The seamless pipe must not have weld seam (some people remove the seam in an undetectable way and be careful of this). Large diameter seamless pipe shall be constructed in a specific process. Raw material should be a solid and round billet. Then, the billet is heated at a very high temperature but one should be careful while doing so because if the temperature rises to melting point then billet may melt. The billet after heating is stretched and pulled over until it takes the shape of a hollow tube. As the welded pipes are conventional, your contractor may suggest you to buy the welded ones but you have to be very careful and choose the seamless large pipe.
The next thing is the uniformity of shape of the seamless pipe. As the welded seam pipes are wrapped around another form before welding and as welding needs stress, heat and other external variables for the whole process of forming, it is very tough to get a welded pipe that is exactly round in shape. The seamless steel pipe is the continuous extrusion of alloy which signifies that you will just a get a round cross section that is necessary when you are using them for any construction process or installing pipes.
The strength of the seamless pipe is more than the welded pipes. Well, you might find it quite expensive but, trust our examination; this is more reliable even under pressure. The welded pipes have the chance to break when in pressure but you can trust the large diameter seamless pipe without any doubt. The empty pipes always support of its own weight but when the pipe is filled with material or under load, it also supports the weight as well. Mostly leaks and pipe failures occur in case of the welded pipes. The seamless pipes does not have the seam hence, there is no chance of pipe failure.
One of the best attributes of the seamless large pipes is that, it has the capability to work under extremely cold or extremely hot environment whereas, it is quite impossible for the welded pipes to work in extremely harsh condition.
Large seamless pipes after hot expanding, the price is lower than normal hot rolled seamless pipe, (steel density reduced). But is higher than large welded pipes like SSAW and LSAW pipe.
Though the price of the large diameter seamless pipe is bit higher than the welded ones but the increasing ability and benefits are making it appropriate for any usage. In the array of commercial application of pipes, the importance of the seamless large pipes are increasing including pipelines oil rigs, building of ships, offshore rigs, machinery parts, pressure vessels, parts of machineries, equipment of oil field etc.
For more industrial steel pipeinformation, please contact us. We will provide professional answers.