• Austenitic stainless steel: Such as 304 (06Cr19Ni10), 316 (06Cr17Ni12Mo2), etc. It has good corrosion resistance and is widely used.
• Martensitic stainless steel: Such as 410 (12Cr13), which has high hardness and is commonly used in cutting tools and mechanical parts.
• Ferritic stainless steel: Such as 430 (10Cr17), which has oxidation resistance and low cost, and is mostly used for home - appliances and decoration.
• Duplex stainless steel: Such as 2205 (022Cr23Ni5Mo3N), which has both high strength and corrosion resistance, and is used in chemical industry and marine environment.

Common Specifications

• Thickness: Usually in the range of 0.1 - 6.0 mm. The thickness of thin - plate coils is commonly 0.3 - 3.0 mm.
• Width: The regular widths are 1000 mm, 1219 mm, 1500 mm, etc., and can also be customized.
• Roll weight: Generally, it is 5 - 20 tonnes per roll, which can be adjusted according to thickness and width.
• Inner diameter: The inner diameter of the roll core is mostly 508 mm (20 inches) or 610 mm (24 inches).

Surface Treatment

• 2B surface: It is obtained by bright annealing after cold - rolling, with a smooth surface, which is the most commonly used.
• BA surface: It is treated with mirror - bright treatment, with high reflectivity, and is used for high - end decoration.
• No.1 surface: It is pickled after hot - rolling, with a rougher surface, suitable for industrial use.
• Brushed surface (HL): It is formed by mechanical drawing, with a beautiful appearance and scratch - resistance.
• Sandblasted surface: It has a frosted texture and is commonly used in architectural decoration.

Production Process

• Hot - rolling: The billets are heated and rolled into thicker coils, and the surface needs to be pickled to remove the oxide layer.
• Cold - rolling: The hot - rolled coils are cold - rolled and pressed to make them thinner, with higher precision and a smoother surface.
• Annealing: To eliminate work hardening and restore the toughness of the material.
• Slitting/cutting: Cut into different widths or flat sheets according to requirements.

Advantages2

• Corrosion resistance: The chromium element in stainless steel can form a passivation film on the surface, which can resist the corrosion of acids, alkalis and humid environments.
• High strength: Its hardness can be enhanced after cold - rolling, so it is suitable for load - bearing structures. It also has good high - temperature stability and wear - resistance, and can maintain good performance at high temperatures.

Application Fields

• Building decoration: It is used for elevator decoration, curtain walls, doors and windows, etc.
• Home - appliance manufacturing: Such as refrigerator, washing machine, and hood panels.
• Food and medical treatment: It is used in kitchen equipment. Surgical instruments usually require medical - grade stainless steel such as 316.
• Industrial equipment: Used in chemical piping, storage tanks, mechanical parts, etc.
• Automotive industry: Such as exhaust pipes and decorative strips. Commonly used grades are 409, 439, etc.