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 most common 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 pipe surface and have strong anti-corrosion effect. For industrial steel pipes, varnish steel pipes is needed.

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

Another surface treatment for 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 few days in wet condition. But if we cover steel surface with black painting, it can keep well for months. And life span will expand accordingly.

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