Stainless steel coil

Stainless steel coil is a product that rolls stainless steel sheet into coils through hot rolling or cold rolling process, which is convenient for transportation and storage and widely used in construction, manufacturing, chemical industry, food processing and other fields.
Classification
By production process:
Hot-rolled stainless steel coil: high temperature rolling, large thickness and rough surface.
Cold-rolled stainless steel coil: room temperature rolling, thin thickness and smooth surface.
By organizational structure:
Austenitic stainless steel coil: such as 304, 316, good corrosion resistance and weldability.
Ferritic stainless steel coil: such as 430, strong magnetism and general corrosion resistance.
Martensitic stainless steel coil: such as 410, high hardness and good wear resistance.
Duplex stainless steel coil: such as 2205, has the advantages of both austenite and ferrite.
By surface treatment:
2B surface: smooth and reflective, suitable for general use.
BA surface: high gloss, used for decoration.
No.4 surface: brushed, often used for architectural decoration.
HL surface: hairline treatment, suitable for decoration and anti-slip.
Common grades
304: General purpose, good corrosion resistance and processability.
316: Contains molybdenum, has stronger corrosion resistance and is suitable for marine environments.
430: Ferritic stainless steel, low price, general corrosion resistance.
201: Partially replaces 304, with slightly poorer corrosion resistance.
Application areas
Architectural decoration: curtain walls, elevator decoration, etc.
Food processing: equipment, containers, etc.
Chemical equipment: storage tanks, pipelines, etc.
Medical equipment: surgical instruments, equipment, etc.
Automobile manufacturing: exhaust systems, decorative parts, etc.
Processing and maintenance
Processing: can be cut, welded, bent, stamped, etc.
Maintenance: Clean regularly, avoid using chlorine-containing cleaners to prevent scratches.
Market and price
Market: Global demand is large, and China is the main producer.
Price: Affected by raw materials, grades, specifications, and market supply and demand, the prices of 304 and 316 are relatively high.
Summary
Stainless steel coils are widely used in many fields due to their excellent performance and easy transportation. Choosing the right grade and surface treatment method is crucial to performance and service life.