How To Distinguish Stainless Steel Wire Rope

    Now a lot of industrial manufacturing products, will use stainless steel wire rope material to make, in order to identify the shoddy stainless steel material, you can take certain measures and methods. However, many customers do not know what method can be identified, below for you to list the following several methods of identification.Stainless Steel Wire Rope

1. Magnetic test method

Magnetic test is the most primitive and the most common distinction between austenitic stainless steel and ferritic stainless steel is the simplest method, austenitic stainless steel non-magnetic steel, but after a large pressure cold processing will have a mild magnetic, and pure chrome steel and low alloy steels are strong magnetic steels.

2, nitric acid point test method

One notable feature of stainless steel wire ropes is the inherent corrosion resistance of concentrated nitric acid and dilute nitric acid, which makes it easy to differentiate from most other metals or alloys.

However, high carbon 420 and 440 steel in the nitric acid point test is slightly eroded, non-ferrous metals encountered when concentrated nitric acid corrosion immediately, and dilute nitric acid on carbon steel has a strong corrosive.Stainless Steel Wire Rope

3. Copper sulfate Point test method

Copper sulfate point test is the easiest way to quickly distinguish plain carbon and all types of stainless steel wire rope, the concentration of copper sulfate solution is 5%-10%, before the pilot test, the experimental area should thoroughly remove the oil or other impurities, polishing a small area with a grinding machine or polishing cloth, and then dropping the test liquid to the grinding place, ordinary carbon steel or iron in a few seconds will form a layer of surface metal copper, and point test stainless steel surface does not produce copper precipitation or display copper color.

4. Sulfuric acid test method

The sulfuric acid immersion stainless steel separates 302 and 304 from 316 and 317. The cutting edge of the specimen should be finely milled, and then in the volume concentration of $number, the temperature of 60 sulfuric acid cleaning and passivation for half an hour, sulfuric acid solution volume concentration of 10%, heating to 71 Shan, 302 and 304 immersed in the solution, the steel was rapidly corroded and produced a large number of bubbles, the specimens were blackened in several ways, while 316 and 317 steel specimens were not corroded or corroded very slowly (no bubbles were produced) and the test was not discolored in the $number. An approximate comparison of samples with known components at the same time can be used to make the test more accurate.Stainless Steel Wire Rope