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Stainless Plate

Stainless Plate is available in a wide range of grades, with 304 and 316 being the most commonly used austenitic stainless steels due to their excellent corrosion resistance and versatility. Other grades such as 430, 410, 201, and duplex 2205 are selected based on cost, strength, and environmental requirements. The performance of stainless steel plates is defined by a balance of corrosion resistance, mechanical strength, heat resistance, and fabrication properties, making them suitable for a wide range of industrial applications.

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Stainless Plate

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Stainless Steel Sheet / Plate

Industrial Stainless Steel Sheet

Decorative Stainless Steel Sheet

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Product Details

resistance, mechanical strength, and heat resistance. It is widely used in construction, chemical processing, marine engineering, food equipment, and industrial manufacturing.

The performance of stainless plates is mainly determined by their chemical composition and grade (series).

Common Stainless Steel Plate Grades

Stainless steel plates are generally classified into austenitic, ferritic, martensitic, duplex, and precipitation-hardening grades. The most commonly used industrial grades include:

1. 300 Series (Austenitic Stainless Steel)

Grade	Key Features
304 / 304L	Most widely used, excellent corrosion resistance, good formability
316 / 316L	Enhanced corrosion resistance with molybdenum, suitable for marine and chemical environments
321	Titanium-stabilized, good high-temperature resistance

Performance characteristics:

Excellent corrosion resistance
Good weldability and formability
Non-magnetic in annealed condition
Suitable for wide industrial applications

2. 400 Series (Ferritic & Martensitic Stainless Steel)

Grade	Key Features
430	Economical grade, good corrosion resistance for indoor use
410	High hardness, good wear resistance
420	High carbon content, good hardness after heat treatment

Performance characteristics:

Magnetic material
Moderate corrosion resistance
Higher hardness in martensitic grades
Lower cost compared to 300 series

3. Duplex Stainless Steel

Grade	Key Features
2205	High strength and excellent corrosion resistance
2507	Super duplex, superior resistance to chloride corrosion

Performance characteristics:

Very high strength (nearly double of 304)
Excellent resistance to stress corrosion cracking
Good performance in marine and chemical environments

4. 200 Series Stainless Steel

Grade	Key Features
201	Lower nickel content, cost-effective alternative to 304
202	Improved strength compared to 201

Performance characteristics:

Lower cost
Moderate corrosion resistance
Good formability
Common in decorative applications

Key Performance of Stainless Steel Plates

1. Corrosion Resistance

Stainless steel contains chromium (≥10.5%), which forms a passive oxide film:

Prevents rust formation
Self-healing surface layer
Excellent durability in harsh environments

2. Mechanical Strength

Different grades offer different strength levels:

Austenitic (304, 316): moderate strength
Martensitic (410, 420): high hardness
Duplex (2205): very high strength

3. Heat Resistance

Certain grades can withstand high temperatures:

304: up to ~870°C intermittent use
316: better stability in high-temperature corrosive environments
321: improved resistance to thermal fatigue

4. Formability and Weldability

300 series: excellent forming and welding performance
400 series: limited formability compared to 300 series
Duplex: requires controlled welding procedures

5. Cost Performance

Grade Type	Cost Level	Application Focus
200 Series	Low	Decorative use
300 Series	Medium	Industrial & general use
400 Series	Low–Medium	Wear-resistant applications
Duplex	High	High-performance engineering