How to Derust the Seamless Steel Pipes

Types of rust of seamless steel pipes:
Generally speaking, the rust on the surface of American standard steel pipes can be divided into floating rust, medium rust, and heavy rust according to the time of shipment, storage and transportation conditions, and humidity.

Floating rust: Generally, when the factory date is short and it is not stored in the open air, there is only a small amount of thin rust on the surface of the pipe. The metal luster can be exposed by manual operations such as wire brush, sandpaper and cotton yarn.

Medium rust and heavy rust: Oxidation rust appears on the surface of the tube when the factory date is long and it is stored in the open air or is transported for many times and the transportation time is long.

Severely rusted pipes are not suitable for sub-water conveying systems. When the rusted pipes are large and the batch size is large, you can use a rust remover or mechanical sandblasting to remove rust mechanically, which can improve labor efficiency and reduce pollution to people and air .

When high quality anticorrosion is required or the inner and outer walls of the pipe are rusted, chemical rust removal methods can be used to effectively remove oxides on the inner and outer surfaces of the pipe.

No matter which method is used to remove rust, the anticorrosive layer should be treated immediately after rust removal to avoid being oxidized and corroded by air again.

New service from OilVoice
Trip Shepherd is for companies who need to track their staff in areas of risk.
It's free to use, so we invite you to try it.

Visit source site

Seamless Steel PipesDerust

More items from lvy

Heat Treatment Technology of Rectangular Tube

In order to improve the surface hardness and abrasion resistance of rectangular tubes, some surface treatments can be performed on them, namely flame surface fire, high and medium frequency surface quenching, and some chemical heat treatment. Generally speaking, most high and medium frequency surfac ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 5 days agoPress > Rectangular TubeHeat Treatment Technology

Testing Method of Casing Pipe

Casing pipe is a high-end product for steel pipe production. There are many types of casing, and there are 15 kinds of casing diameter specifications. External diameter range is 114.3-508mm; steel types are J55, K55, N80, L-80, P-110, C-90, C-95, T-95, etc. 11 kinds; casing end buckle type and var ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 10 days agoPress > casing pipeTesting Method

How to Control the Special Oil Pipe

How to control the special oil pipe? Let us briefly understand: Valves are mechanical devices used to open, close, and perhaps regulate the flow of media in pipes. There are many types of valves, and there are many types of classification. If it is differentiated by purpose, it can be divided into ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 12 days agoPress > Special Oil Pipecontrolvalves

Comparison of ERW and LSAW Steel Pipes

" ERW steel pipe " is a high-frequency straight seam resistance welded pipe. It is used to transport vapor and liquid objects such as oil and natural gas, and can meet various requirements of high and low pressure. At present, it plays a pivotal role in the field of transportation pipes in the world ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 1 month agoPress > erw steel pipelsaw steel pipeComparison

Precautions for Seamless Steel Pipe Production

Cold drawn precision  seamless steel tube  has the characteristics of no oxide layer on the inner and outer walls, high pressure without leakage, high precision, high smoothness, no deformation during cold bending, no flaring and no cracks, and antirust treatment on the surface. It is mainly used fo ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 1 month agoPress > Seamless steel pipeProductionPrecautions
All posts from lvy