Stainless steel screws and carbon steel screws are more commonly used not only in daily life, but all walks of life prefer these two kinds of screws, not only because of their high quality and low price, but also because of their good performance, they can be used in various environments. And in operation. What is the difference between stainless steel screws and carbon steel screws?
First of all, the material is different. The material of stainless steel and carbon steel is still obviously different: carbon steel mainly refers to the traditional Chinese performance depends on the carbon content in the steel, and generally does not artificially add a large amount of alloying element steel, sometimes also called normal carbon steel and carbon steel. Refers to iron-carbon alloys with a carbon content of less than 2% WC. Carbon steel generally contains a small amount of silicon, manganese, sulfur, and phosphorus in addition to carbon. Stainless steel usually refers to alloy steel with certain anti-corrosion ability, and its main chemical components are chromium and nickel.
Second, the performance is different. Carbon steel is classified into low-carbon steel, medium-carbon steel, and high-carbon steel according to the carbon element content. The carbon element content is different, and the hardness is also different; while stainless steel contains chromium and nickel elements, the most obvious performance is atmospheric resistance Corrosive, according to the internal structure of the steel, stainless steel can be divided into martensitic, ferritic, austenitic, ferritic-austenitic, precipitation hardening stainless steel. In our daily life, there are many Austenitic stainless steel (nickel stainless) and martensitic stainless steel ("stainless iron").
Third, the magnetism is different. There is no difference between carbon steel and galvanized steel. Stainless steel generally does not have magnetism, but it is not absolute. Austenitic has no magnetism, but ferrite has, but it is relatively weak.
In summary, stainless steel screws and carbon steel screws are different in terms of hardness, magnetism, and rust resistance.