E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
Jun. 10, 2026
The basic manufacturing process for carbon steel pipe elbows is as follows: First, polygonal annular shells or polygonal sector shells sealed at both ends are welded together. After filling the interior with a pressure medium, internal pressure is applied. Under the action of internal pressure, the cross-section gradually changes from polygonal to circular, eventually forming a circular annular shell. As needed, the circular annular shell can be cut into four 90-degree elbows, six 60-degree elbows, or other specifications of elbows. This process is suitable for manufacturing large elbows of various specifications with a pitch circle diameter to inner diameter ratio greater than 1.5, and is currently the ideal method for manufacturing large carbon steel pipe elbows.
The advantages of the carbon steel pipe elbow manufacturing process are mainly reflected in the following aspects:
1. It does not use pipe blanks as raw materials, saving the cost of pipe-making equipment and molds, and obtaining carbon steel elbows with arbitrarily large diameters and relatively thin wall thicknesses.
2. The blank is a flat or developable plane, therefore blanking is simple, accuracy is easily guaranteed, and assembly and welding are convenient.
3. Based on the above two reasons, this method can shorten the manufacturing cycle and significantly reduce production costs. Because no special equipment is required, this method is particularly suitable for on-site fabrication of large carbon steel elbows.
Cangzhou Aosendike Pipe Fittings Manufacturing Co., Ltd. is a large-scale manufacturer specializing in elbows, tees, reducers, and pipe caps. We can produce according to ASTM, ANSI, JIS, DIN, GB, and other standards, covering virtually all steel types.
For purchasing needs or inquiries, please feel free to contact us.
Mobile: 86-13668807131
Website: https://www.authenticfitting.com/
Address: Mengcun Hui Autonomous County, Cangzhou City, Hebei Province
Email: authentic013@steelpipes-fitting.com
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Latest News
Industry News
Jun. 10, 2026
Basic technology of carbon steel pipe elbows
The basic manufacturing process for carbon steel pipe elbows is as follows: First, polygonal annular shells or polygonal sector shells sealed at both ends are welded together. After filling the interior with a pressure medium, internal pressure is applied. Under the action of internal pressure, the cross-section gradually changes from polygonal to circular, eventually forming a circular annular shell. As needed, the circular annular shell can be cut into four 90-degree elbows, six 60-degree elbows, or other specifications of elbows. This process is suitable for manufacturing large elbows of various specifications with a pitch circle diameter to inner diamete
Industry News
Jun. 08, 2026
Advantages of carbon steel flanges
Carbon steel flanges are made of carbon steel, offering low cost and suitability for high-pressure, high-temperature environments such as those in the oil, natural gas, and power industries. They require anti-corrosion treatment.
Industry News
Jun. 03, 2026
Surface treatment methods for carbon steel flanges
As a key component in pipeline connections, the surface treatment of carbon steel flanges is crucial for improving their corrosion resistance and service life. Common surface treatment methods for carbon steel flanges include:
Authentic is here to help you find the right pipe fittings and flanges for your specific needs.
FAQ
What certifications do your products have?
Our products comply with international standards such as ASTM, ANSI, JIS, DIN, and GB. We also hold various certifications to assure quality and reliability, including ISO 9001.
How can I get some samples?
If you need, we will offer you samples for free, but new customers are expected to pay express charge.
To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru, USA, Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.)
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Our team at Authentic is here to help you find the right pipe fittings and flanges for your specific needs.
You Can Contact Us in the Following Ways
authentic013@steelpipes-fitting.com
+86 13668807131
Donghe Industrial Zone, Mengcun County, Cangzhou City, Hebei Province
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