[49.5mm & pcs500 gram]
Steel is a carbon alloy containing 0.021% -2.11%. We usually refer to the iron-in-iron, in order to ensure its toughness and plasticity, carbon content is generally not more than 1.7%
Carbon steel mainly refers to steel of the mass fraction of carbon than 2.11% without containing steel for alloying elements specially added. Sometimes it is also known as copper steel or carbon steel, and the carbon containing high hardness is small.
Bearing steel is a steel species for making rolling bearings, rollers, and sleeves, etc., can also be used to make precision measuring tools, cold mold, machine screw and diesel oil pump
StainlessSteel refers to air, steam, water, etc., such as corrosion, acid, alkali, salt and other chemical corrosion-resistant media, and a lot of species.
1, ferritic stainless steel. 12% ~ 30% of chromium. Its corrosion resistance, toughness, and solderability increase with chromium increasing amounts
, Chloride stress corrosion performance is superior to other types of stainless steel.
2, austenitic stainless steel. The chromium is greater than 18%, and also contains about 8% of nickel and a small amount of molybdenum, titanium, and nitrogen. Good comprehensive performance, resistant to a variety of media corrosion.
3, austenitic ferrite double phase stainless steel. It has the advantages of austenitic and ferritic stainless steel and has superplasticity.
4, martensite stainless steel. High strength, but poor plasticity and weldability.