Problems with using carbon steel U-bolts for 304 steel pipes
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Can carbon steel bolts be used for pipe supports on stainless steel pipes? Should the U-bolts be replaced with stainless steel ones, or should a gasket be added? What type of gasket should be used?
Rubber, PTFE, and stainless steel sheets are all available
It’s fine if the material of the pipe support is different from that of the pipeline; they aren’t welded together anyway
A thin stainless steel sheet can be used as a pad between the pipeline and the carbon steel supports
Use a thin 304 plate as a pad, making sure to avoid direct contact between the pipe support and the pipeline.
Electrochemical corrosion will occur; in such cases, a glue-distributing rubber is often placed under U-shaped supports. Plastic pipe clamps can also be used.
Galvanized ones are fine and can be used; painting them is also an option. However, it’s best to avoid welding or fixing stainless steel and carbon steel together, as this can lead to electrochemical corrosion.
I’ve seen ones with sandpaper placed in the middle
Sandpaper? Amazing – are you not satisfied with how fast the stainless steel pipe rusts?