Stainless steel,Precision metal foil and strip,Precision seamless tube,Profiled seamless tube

Stainless steel

Overview

Stainless steel is a kind of steel with corrosion resistance in natural environment or certain media.

It is passivated in the atmosphere and acid, alkali, salt and other corrosive media, corrosion resistance and no rust of high chromium (generally 12%~30%) alloy steel (with carbon content is up to 1.2%).

At present, we usually call steel with resistance to the atmosphere or weak corrosive as stainless steel, and those steel with resistance to strong corrosive medium as acid resistant steel, so stainless steel can be divided into stainless steel and acid resistant steel according to corrosion resistance. Corrosion resistance is one of the main performances index of stainless steel.

Properties

Stainless steels are most notable for their corrosion resistance, which increases with increasing chromium content. Additions of molybdenum increase corrosion resistance in reducing acids and against pitting attack in chloride solutions. Thus, there are numerous grades of stainless steel with varying chromium and molybdenum contents to suit the environment the alloy must endure. Stainless steel's resistance to corrosion and staining, low maintenance, and familiar luster make it an ideal material for many applications where both the strength of steel and corrosion resistance are required.

Application

Stainless steels are most commonly used for their corrosion resistance. The second most common reason stainless steels are used is for their high temperature properties. Stainless steels can be found in applications where high temperature oxidation resistance is necessary, and in other applications where high temperature strength is required. The high chromium content which is so beneficial to the wet corrosion resistance of stainless steels is also highly beneficial to their high temperature strength and resistance to scaling at elevated temperatures.