PIPE ELBOW MANUFACTURING PROCESSButtweld elbows 45 and 90 degrees can be manufactured in different ways, the main ones are the “mandrel process” and the “cold forming” (other methods are the elliptical forming and the double-seam welding method).Mandrel ProcessCold forming

Advantages of Stainless steel flang: 1. Stainless steel flange is acid and alkali resistant, corrosion resistant, and fireproof. 2. Easy to use and install, in one step.3. Diversified scope of application, suitable for various pipelines. 4. Long application life, not easy to age. 5. Low carbon and environmental protection, high durability.

The seamless steel pipe is hollowed out in the middle, which is mainly used to transport fluids, such as gas, natural gas, oil and solid materials. Compared with solid steel pipe, seamless steel pipe is lighter in weight and is a kind of economical cross-section steel. Seamless steel pipe is widely used in the manufacture of mechanical parts and structural parts, such as automobile transmission shafts, oil drill pipes, and steel scaffolding used in construction.

SEAMLESS VS WELDED BW FITTINGS Butt weld fittings are available in seamless and welded execution (seamless for bore sizes below 24 inches, welded for sizes above 24 inches). Seamless buttweld fittings have no seam welds and are therefore considered superior to welded BW fittings (a weld is always a

Pipe selection and wall thicknessSteel pipe is required in the majority of oil and gas production and pipeline applications. ASME A53 and A106 and API 5L seamless, electric resistance welding (ERW), and submerged arc welding (SAW) steel pipe are commercially available and most commonly used in pipe

Welded pipes have low production costs, common raw materials, short production cycles, and can be manufactured into different lengths according to requirements, so they are used in large quantities.Welded steel pipes are widely used in many fields because of low cost and high efficiency.