E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
May. 25, 2026
The manufacturing process of carbon steel elbows mainly includes hot forming, stamping, welding, and casting. The specific process varies depending on the process type.
1. Hot Forming Process
Blank Preparation: Select seamless steel pipes or billets and cut them to appropriate lengths according to the elbow specifications.
Heating:Heat the billet to the plastic deformation temperature using methods such as medium/high frequency induction heating or flame heating.
Push Forming:On a dedicated push forming machine, a mandrel controls the deformation of the billet. A push rod pushes the billet along the gap between the inner and outer dies, gradually expanding the diameter and bending it into shape.
Cooling and Shaping: After forming, allow natural or forced cooling to ensure dimensional stability.
Subsequent Processing: Includes surface treatment (such as sandblasting, galvanizing), and inspection (such as hydrostatic testing or flaw detection).
2. Stamping Process
Blanking: Cut the billet to the design dimensions.
Heating:Heat the billet to a suitable temperature (hot stamping) or perform direct cold stamping.
Stamping Forming: Pressure is applied to the tube blank using a stamping press in a specialized mold, deforming it into an elbow shape.
Heat Treatment: Relieves internal stress and improves material properties.
Surface Treatment and Inspection: Completes anti-corrosion treatment and quality inspection.
3. Welding Process
Segmentation: The medium plate is cut into half of the elbow profile and formed using a press.
Welding: The two halves are welded together to form a single elbow, suitable for large diameters.
Inspection and Treatment: Weld flaw detection, anti-corrosion treatment, and pressure testing are performed.
Cangzhou Aosendike Pipe Fittings Manufacturing Co., Ltd. is a large-scale manufacturer specializing in elbows, tees, reducers, and pipe caps. We can comply with ASTM, ANSI, JIS, DIN, GB, and other standards, covering virtually all steel materials.
For purchasing needs or inquiries, please contact us.
Mobile: 86-13668807131
Website: https://www.authenticfitting.com/
Address: Mengcun Hui Autonomous County, Cangzhou City, Hebei Province
Email: authentic013@steelpipes-fitting.com
Latest News
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Why are dimensions and wall thickness so important when purchasing carbon steel pipe fittings?
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Working Principle of Carbon Steel Flanges
Cast flanges feature rough external shapes but precise dimensions, require minimal machining, and offer low costs; however, they are prone to casting defects (such as porosity) and cracks (often due to inclusions), and their internal structure is suboptimal (resulting in poor grain flow characteristics after cutting).
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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