Corrosion resistant stainless steel
Corrosion resistant stainless steel sheet is a highly alloyed austenitic stainless steel with very low carbon content, which has good corrosion resistance in dilute sulfuric acid and is designed for environments with harsh corrosive conditions.
It has a high chromium content and sufficient nickel content, and the addition of copper makes it highly resistant to acid, especially to chloride interstitial corrosion and stress corrosion cracking with high resistance, not easy to appear corrosion spots and cracks, pitting resistance is slightly better than other steel grades, with good workability and weldability, can be used for pressure vessels.
Stainless steel plate surface is very bright, but this does not mean that the stainless steel plate will not rust, in some cases, not on the steel plate will also rust, the following we will look at the causes of stainless steel plate rust: 1.
1. the stainless steel surface is stored with other metal elements containing dust or foreign metal particles of adhesion.
In the humid air, the attachment and the condensation between the stainless steel, the two connected into a microcell, triggering
The electrochemical reaction, the protective film is damaged, called electrochemical corrosion.
2. stainless steel surface adhesion of organic juice (such as vegetables, noodle soup, spit, etc.), in the case of water and oxygen, the
Constitute organic acid, a long time then organic acid corrosion of the metal surface.
3 stainless steel surface adhesion containing acid, alkali, salt substances (such as decorative walls of alkaline water, lime water spray), causing local corrosion.
(splash), causing local corrosion.
4. in the polluted air (such as containing a large number of sulfides, carbon dioxide, nitrogen oxide atmosphere), when encountering cold
Condensation, the formation of sulfuric acid, nitric acid, acetic acid liquid point, causing chemical corrosion.
All of the above can cause the destruction of stainless steel surface protective film caused by rust corrosion.
It has a high chromium content and sufficient nickel content, and the addition of copper makes it highly resistant to acid, especially to chloride interstitial corrosion and stress corrosion cracking with high resistance, not easy to appear corrosion spots and cracks, pitting resistance is slightly better than other steel grades, with good workability and weldability, can be used for pressure vessels.
Stainless steel plate surface is very bright, but this does not mean that the stainless steel plate will not rust, in some cases, not on the steel plate will also rust, the following we will look at the causes of stainless steel plate rust: 1.
1. the stainless steel surface is stored with other metal elements containing dust or foreign metal particles of adhesion.
In the humid air, the attachment and the condensation between the stainless steel, the two connected into a microcell, triggering
The electrochemical reaction, the protective film is damaged, called electrochemical corrosion.
2. stainless steel surface adhesion of organic juice (such as vegetables, noodle soup, spit, etc.), in the case of water and oxygen, the
Constitute organic acid, a long time then organic acid corrosion of the metal surface.
3 stainless steel surface adhesion containing acid, alkali, salt substances (such as decorative walls of alkaline water, lime water spray), causing local corrosion.
(splash), causing local corrosion.
4. in the polluted air (such as containing a large number of sulfides, carbon dioxide, nitrogen oxide atmosphere), when encountering cold
Condensation, the formation of sulfuric acid, nitric acid, acetic acid liquid point, causing chemical corrosion.
All of the above can cause the destruction of stainless steel surface protective film caused by rust corrosion.
Powder Metallurgy High Temperature Alloys
Iron-based cast high-temperature alloys
Nickel-based cast high-temperature alloys
Cobalt-based cast high-temperature alloys
Directional eutectic casting of high temperature alloys
Single crystal casting high temperature alloys
Casting high temperature alloys
Corrosion resistant high temperature alloys
Corrosion resistant alloys