Stainless steel welded pipes are widely used in stainless steel pipe replacement. As the replacement of stainless steel pipes undergoes transformation and upgrading, what significant role will stainless steel welded pipes play in this process? Jinduode Stainless Steel provides a simple analysis:

The stainless steel tube replacement改造 utilizes stainless steel welded tubes as heat exchange tubes, which are fixed to the end tube plates using胀管法. Intermediate baffles support the tubes to curve upwards and prevent resonance. The tube bundle arrangement employs HEI-6 design technology, with the condenser designed using this technique featuring a centrifugal steam flow, curved arrangement, and triangular layout. Notable characteristics include low steam resistance, minimal supercooling, strong corrosion resistance of the tube bundles, and an extended overall lifespan.

The stainless steel pipe replacement renovation boasts excellent heat transfer performance. Utilizing thin-walled materials with wall thicknesses of 0.5-0.8mm enhances the heat exchange capabilities, resulting in approximately 1.2 to 1.3 times the efficiency of copper pipes with the same heat exchange area. It exhibits strong corrosion resistance, withstanding pitting, ammonia, and general corrosion, and has a lifespan of over twenty years.

The Condenser Stainless Steel Welded Pipe is manufactured using imported tube-making equipment, with quality comparable to or slightly superior to imported tubes. The weld metal microstructure is identical to the base material, and its mechanical properties, such as strength, are slightly better. Due to the uniform thickness of the strip, the surface is smooth and flat, making its quality superior to cold drawn, hot rolled seamless stainless steel tubes of the same material. It has an elongation of over 35% and is low in hardness, making it easy to胀接.

Stainless steel welded pipes are manufactured using high-precision automated tube-making equipment. They are joined through self-etching welding, rolled into shape, and filled with gas for protection on both the inside and outside of the pipe without any metal filler. The welding process is TIG (Tungsten Inert Gas) and features online solidification and eddy current testing.

Stainless steel welded pipes play a crucial role in the process of stainless steel pipe replacement due to their excellent corrosion resistance, strength, good ductility, ease of shaping and welding, and cost-effectiveness.