1. Appearance difference between carbon steel and stainless steel:
The main components of stainless steel are metals such as chromium and nickel, so the appearance of stainless steel is mostly silver, and its surface is smooth and has a very strong metallic luster.
on steel.

Carbon steel is an iron-carbon alloy with a carbon content ranging from 0.0218 percent to 2.11 percent. Carbon steel, also called carbon steel, generally also contains a small amount of silicon, manganese, sulfur, and phosphorus. In addition, the higher the carbon content in carbon steel, the greater the hardness and the higher the strength, but the lower the plasticity. According to the carbon content, carbon steel can be divided into low carbon steel, medium carbon steel and high carbon steel.



High carbon steel, often called tool steel, contains from 0.60% to 1.70% carbon and can be hardened and tempered. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%. Generally, high carbon steel has high strength and is widely used in cutting, drilling, lathe, milling and other environments that require high hardness. Medium carbon steel Carbon steel with a carbon content of 0.25% to 0.60%.

Generally speaking, the difference between stainless steel and aluminum alloy is as follows: 1. In terms of price, stainless steel is expensive, and aluminum alloy is cheap; 2. The hardness of stainless steel is higher than that of aluminum alloy; 5. In terms of surface treatment, aluminum alloy is more abundant, including electrophoresis, spraying, anodizing, etc. There are few stainless steels; 6. Aluminum alloys with poor surface treatment will oxidize after being used for a long time, and there will be spots; stainless steels are relatively better, but the ingredients are not up to the standard or the maintenance is careless and still rusted.

There are four main types of stainless steel materials:
One, ferritic stainless steel. It has good corrosion resistance, oxidation resistance and stress resistance, and is mainly used for the production of corrosion-resistant parts;
Second, austenitic stainless steel, with good toughness and plasticity, is mainly used in various industries;
Three, Austenitic-ferritic duplex stainless steel, with good high toughness and moldability, is mainly used for corrosion-resistant engineering materials;
Fourth, martensitic stainless steel, which can change the mechanical properties after heat treatment, is mainly used for the production and processing of surgical instruments, steam turbine blades and other products.