Aircraft Fuel Delivery ERW Steel Pipe DN100

Aircraft fuel delivery pipelines require steel pipes with stable mechanical properties, clean internal surfaces, and reliable welding performance. ERW pipes made from ASTM A53 Grade B or API 5L L245 steel typically provide a minimum yield strength of about 245 MPa and tensile strength between 415 and 550 MPa. These grades maintain good weldability while ensuring sufficient pressure resistance for continuous aviation fuel transfer. Strict control of sulfur and phosphorus content improves corrosion resistance and reduces the risk of contamination in fuel systems.

At Huayang Steel Pipe, DN100 ERW pipes are produced using high-frequency resistance welding lines with automated seam tracking and online ultrasonic testing. The pipes undergo hydrostatic pressure testing, dimensional inspection, and eddy current testing to ensure consistent weld integrity. For aviation fuel applications, internal surfaces are carefully treated to maintain smooth flow conditions, while external anti-corrosion coatings can be applied depending on installation environments.