309S Stainless Steel Plates

309S Stainless Steel Plates
309S Stainless Steel Plates are heat-resistant austenitic stainless steel plates with high chromium and nickel content, designed for excellent oxidation resistance and strength at elevated temperatures. As a low-carbon variant of 309 stainless steel, 309S provides improved weldability and minimizes carbide precipitation during welding.
These plates perform reliably in high-temperature environments, with strong resistance to oxidation, scaling, and thermal fatigue. Compared with 304 stainless steel, 309S offers superior heat resistance, making it suitable for continuous service in temperatures up to 950°C.
Manufactured using advanced rolling technology, our 309S stainless steel plates feature precise thickness tolerance, consistent mechanical properties, and high-quality surface finishes such as No.1, 2B, and polished surfaces. All products comply with international standards including ASTM, AISI, and EN.
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Applications

Hot rolled stainless steel plates are widely used across multiple industries due to their strength and corrosion resistance:

• Construction & Infrastructure – structural components, support frames, bridges
• Machinery Manufacturing – heavy equipment, industrial machinery parts
• Pressure Vessels & Tanks – storage tanks, boilers, chemical containers
• Energy & Power Industry – oil & gas equipment, power plant components
• ​Shipbuilding & Marine – decks, hull structures, offshore platforms

​Advantages

1. High Strength & Durability
Hot rolling enhances the mechanical properties, making the plates suitable for heavy-duty and load-bearing applications.
2. Excellent Corrosion Resistance
With grades like 304 and 316L, the plates perform well in corrosive and high-humidity environments.
3. Cost-Effective Solution
Compared to cold rolled sheets, hot rolled plates offer a more economical option for thick and structural uses.
4. Wide Thickness Range
Available in medium to heavy thicknesses, meeting diverse industrial requirements.
5. Good Workability
Suitable for further processing such as cutting, welding, and machining.

Custom Processing Services
Beyond supplying high-quality stainless steel plates, we also provide one-stop metal fabrication solutions:

• Laser Cutting
• CNC Machining
• Bending & Forming
• Welding & Assembly
• Surface Treatment

FAQ
1. What is the difference between hot rolled and cold rolled stainless steel plates?
Hot rolled plates are processed at high temperatures and typically have a rougher surface (NO.1 finish), while cold rolled sheets offer smoother surfaces and tighter tolerances.

2. What grades of stainless steel plates do you supply?
We supply a wide range of grades including 304, 304L, 316L, 321, 310S, 309S, and duplex stainless steel.

3. What thickness range is available?
Our hot rolled stainless steel plates are typically available from 3 mm up to 50 mm or more, depending on grade and specification.

4. Do you support custom sizes?
Yes, we provide cut-to-length services and can customize dimensions based on your project requirements.

5. Do you offer fabrication services?
Yes, we provide complete metal fabrication services, including cutting, bending, welding, and CNC machining.