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Stainless steel is a type of alloy made up of iron, chromium, and other elements like nickel, molybdenum, or manganese. The addition of chromium is what gives stainless steel its characteristic resistance to rust, corrosion, and staining, making it a popular material for a wide range of applications.

Stainless steel can be divided into different grades based on the ratio and type of alloying elements used, as well as their properties and applications. For example, austenitic stainless steel is the most common type and is known for its high corrosion resistance and formability, while ferritic stainless steel has lower corrosion resistance but higher strength and heat resistance.

• Stainless steel for architectural decoration: mainly used for building exterior walls, roofs, interior decoration, elevators, handrails, railings, etc.

• Stainless steel products: such as stainless steel wire rope, steel pipe, pipe fittings, stainless steel plate, bar, etc.

• Stainless steel kitchenware and tableware: such as stainless steel pots, bowls, plates, knives, forks, spoons, etc.

• Medical stainless steel: such as surgical instruments, medical equipment, hospital beds, guardrails, etc.

• Stainless steel for vehicle manufacturing: such as automobile exhaust pipes, doors, roofs, interiors, etc.

• Stainless steel for electric power and energy: such as nuclear power plants, oil and gas extraction, processing equipment, etc.

• Stainless steel for other purposes: such as aerospace, textile industry, paper product industry, etc.

The above are some common classifications of stainless steel according to their use. Due to the excellent performance and characteristics of stainless steel, it is widely used in various fields.

The surface state of stainless steel can obtain different surface effects and properties through various treatment methods. The following are some common stainless steel surface classification methods:

• 2B Surface: It is the surface effect of stainless steel cold-rolled sheets after cold-rolling, annealing, pickling, and other processes. It has the characteristics of smoothness, and low brightness, and is suitable for deep processing.

2B Stainless steel sheet

• BA Surface: It is the surface effect of stainless steel cold-rolled plate after mirror polishing and other treatments. It has the characteristics of brightness, a high finish, and is not easy to pollute. It is suitable for high-end construction, home furnishing, and other fields

BA Stainless Steel Sheets

• NO.1 Surface: It is the surface effect obtained after the hot-rolled stainless steel plate is processed by pickling and other processes. It has the characteristics of high surface hardness and is not easy to bend. It is suitable for large-scale machinery and equipment and other fields.

Stainless Steel Sheet/Plate

• NO.8 Surface: NO.8 surface is a high-brightness stainless steel surface treatment method, also known as mirror polishing. This surface treatment method is through multiple grinding, polishing, and other treatment processes on the surface of stainless steel, and finally obtains a surface effect with high brightness, high reflectivity, and an extremely smooth finish.

Mirror Stainless Steel Sheets

• NO.3 Surface: It is the surface effect of stainless steel after grinding and polishing. It has the characteristics of a smooth surface and a high finish. It is suitable for hotels, high-end homes, and other fields.
• NO.4 Surface: It is the surface effect of stainless steel after line drawing, polishing, and other treatments. It has the characteristics of smooth, uniform, and clear lines, and is suitable for construction, decoration, and other fields.

Polished Stainless Steel Sheets

• Embossed Surface: The embossing surface treatment method is to use an embossing machine to extrude various patterns and textures on the stainless steel plate, and finally obtain a surface effect with texture, concave-convex, and decorative. This surface treatment method is generally applicable to fields such as architecture, home furnishing, and interior decoration, and can have the effect of beautifying decoration.

Embossed Stainless Steel Sheets

• Etched Surface: The etching surface treatment method is to form a surface effect with lines, patterns, and patterns after the surface of the stainless steel plate is chemically treated by pickling and etching. This surface treatment method is usually suitable for decoration, printing, watchmaking, and other fields, and can produce products with artistic sense and unique patterns.

Etched Stainless Steel Sheets

The above are some common surface classification methods of stainless steel. Different surface treatment methods can obtain different surface effects and properties, which can meet the applications in different fields and needs.

According to chemical composition, stainless steel can be divided into many types, the following are some common classification methods:

• Austenitic stainless steel: The main components are chromium, nickel, and molybdenum. It has good corrosion resistance and plasticity and is one of the most commonly used types of stainless steel.
• Ferritic stainless steel: The main components are iron and chromium, with high carbon content, and its heat resistance and corrosion resistance are worse than austenitic stainless steel.
• Martensitic stainless steel: The main components are iron, chromium, and nickel, with high carbon content, excellent strength, and hardness, but poor corrosion resistance.
• Duplex stainless steel: The main components are chromium, nickel, and molybdenum, and it also contains an appropriate amount of ferrite and austenite. It has excellent strength and corrosion resistance. It is a type of stainless steel with better comprehensive properties.
• High-alloy stainless steel: contains a variety of alloying elements, such as cobalt, copper, tungsten, niobium, etc., has excellent corrosion resistance and high-temperature performance and is mainly used in chemical, petroleum, and aviation fields.

The above are some common stainless steel types classified according to chemical composition. Each stainless steel has different chemical composition and performance characteristics and can be used in different application fields and manufacturing processes.

According to different manufacturing processes, stainless steel can be divided into the following types:

• Hot-rolled stainless steel plate: Stainless steel plate manufactured by the hot-rolling process has high hardness and strength, and is widely used in construction, electric power, and other fields.

• Cold-rolled stainless steel plate: Stainless steel plate manufactured by the cold-rolling process has high surface smoothness and smoothness, and is widely used, such as in electrical appliances, electronics, the military industry, ships, and other fields.

• Stainless steel profiles: stainless steel profiles are manufactured by extrusion, stretching, and other processes. The common ones are stainless steel angle steel, stainless steel square tube, stainless steel round tube, etc., which are widely used in construction, manufacturing, and other fields.

• Stainless steel wire rod: stainless steel wire rod manufactured by drawing process has the characteristics of high strength, corrosion resistance, and high-temperature resistance, and is widely used in manufacturing, construction, electrical appliances, and other fields.

• Stainless steel welding consumables: stainless steel welding consumables manufactured by arc welding, argon arc welding, and other processes have excellent welding performance and corrosion resistance, and are widely used in manufacturing, ships, electrical appliances, and other fields.

The above are the common types of stainless steel classified according to the manufacturing process. Stainless steel with different manufacturing processes has different characteristics and scope of application, which can meet the needs of various fields.