ERW steel pipe, which is short for electric resistance welded steel pipe, is widely used for low-pressure liquid delivery, such as water, gas and oil field, oil drilling and machinery manufacturing, etc. Today, we’ll talk about the most commonly seen surface treatment for electric resistance welded steel pipe.

First comes fusion bond epoxy, also known as FBE coating, which is widely used to protect steel pipe used in pipeline construction from corrosion. Working temperature for FBE coated steel pipe can up from 180℃ to 250℃.

Then comes varnish coating. Varnish coating is the most general surface treatment for steel pipe. General varnish coating is just an oil-liked coating on the pipe surface and has a strong anti-corrosion effect. For industrial steel pipes, varnish steel pipes are needed.

Another surface treatment for the ERW steel pipe is PE. Both PE and 3PE is commonly seen ways. PE coated steel pipe is widely used for liquid transportation usage pipe.

Another surface treatment for the ERW steel pipe is black oil coating. Black oil coating is widely used for all kinds of steel pipes. As we know, if there isn’t any surface treatment for steel pipe, it can get rust in a few days in wet conditions. But if we cover the steel surface with black painting, it can keep well for months. And the life span will expand accordingly.

There are also many other surface treatment for steel pipes, such as coal tar epoxy, bitumen coating, or other coatings per customer’s requirement.