1. Voltage resistance performanceThe pressure resistance of welded rolled pipes is better than that of welded pipes because their overall strength is higher and they can withstand higher internal pressure and external loads.
2. Corrosion resistance performance
The surface of the welded rolled pipe has been treated and has good corrosion resistance, which can reduce the corrosion damage of the pipeline to some extent. The weld seam of welded pipes is relatively difficult to handle and is susceptible to corrosion damage.
3. Processing performance
The processing and forming of welded pipes is relatively easy, and the length can be cut according to requirements. It is also possible to expand, press, fit, and achieve joints on other pipes. The processing difficulty of welding and rolling pipes is relatively high, requiring specialized welding and rolling pipe production lines and processing equipment.
4. Cost differentiation
The cost of welding pipes is relatively low, the production process is simple, and it has a wide range of applications. The cost of welding and rolling pipes is relatively high. Due to the need for multiple processing steps and specialized equipment, the production cost is relatively high.
Application scenarios:
Rolled steel pipes: widely used in fields such as petroleum, natural gas, chemical, machinery, and electricity that require high strength and corrosion resistance.
Welded steel pipes are widely used in pipeline connections, building structures, bridge supports, and other applications due to their flexible structure and relatively low manufacturing costs.