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309S Stainless Steel Sheet and Plate for High Temperature Applications

Place of Origin: China
Brand Name: Baotong
Certification: ISO9001
Model Number: 309S
Minimum Order Quantity: 5tons
Price: Negotiable
Packaging Details: Bending, Welding, Decoiling, Punching, Cutting and Others.
Delivery Time: 15-45 days, depending on the situation and quantity
Payment Terms: L/C,D/A,D/P,T/T
Supply Ability: 100000 Tons/Year
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Specifications
Tensile Strength:
515 MPa (min)
Density:
8.0 G/cm³
Type:
Austenitic Stainless Steel
Yield Strength:
205 MPa (min)
Melting Point:
1400-1450°C
Magnetic Properties:
Non-magnetic In Annealed Condition
Applications:
Used In Furnace Parts, Heat Exchangers, And High-temperature Equipment
Formability:
Good Formability And Weldability
Heat Resistance:
Excellent Up To 1150°C
Corrosion Resistance:
Good Resistance To Oxidation And Corrosion At High Temperatures
Surface Finish:
Available In Various Finishes Including Mill Finish, Polished
Elongation:
40% (min)
Material:
309S Stainless Steel
Product Description

Product Description

309S Stainless Steel Sheet and Plate for High Temperature Applications is a high-performance austenitic stainless steel product designed for industrial environments requiring excellent heat resistance, oxidation resistance, and reliable durability.

Containing approximately 22–24% chromium and 12–15% nickel, 309S stainless steel provides superior high-temperature oxidation resistance compared with conventional 304 stainless steel. Its low carbon content also improves weldability and reduces the risk of carbide precipitation during welding.

Our 309S stainless steel sheets and plates are available in various thicknesses, sizes, and surface finishes to meet different manufacturing and fabrication requirements.

Widely used in industrial furnaces, heat treatment equipment, thermal processing systems, and high-temperature machinery, 309S Stainless Steel Sheet and Plate for High Temperature Applications offers a reliable solution for demanding industrial projects.

Product Specifications

ItemSpecification
Product Name309S Stainless Steel Sheet and Plate
Material Grade309S / UNS S30908
StandardASTM A240 / ASME SA240
Thickness0.5–100 mm (Customizable)
Width1000 / 1219 / 1500 / 2000 mm
Length2000 / 2438 / 3000 / 6000 mm
Surface Finish2B, No.1, BA (Depending on Product Form)
Processing ServiceCutting, Bending, Welding, Polishing
PackagingWooden Pallets / Export Seaworthy Packaging
ApplicationsFurnaces, Heat Treatment, Thermal Equipment

All dimensions, finishes, and processing services are subject to actual manufacturing and supply availability.

Applications of 309S Stainless Steel Sheet and Plate

309S Stainless Steel Sheet and Plate for High Temperature Applications is widely used across industries where heat resistance and oxidation resistance are essential.

1. Industrial Furnaces

Used for furnace liners, heat shields, furnace panels, and other components exposed to elevated temperatures.

2. Heat Treatment Equipment

Suitable for heat treatment furnace components, thermal processing equipment, and heat-resistant fabricated parts.

3. Boiler and Heating Equipment

Applied in selected non-pressure boiler components, heating equipment panels, and industrial heat-resistant structures.

4. Chemical and Petrochemical Equipment

Used in suitable high-temperature processing equipment and industrial components where the operating environment is compatible with 309S stainless steel.

5. High-Temperature Industrial Machinery

Suitable for industrial equipment components requiring oxidation resistance, durability, and good fabrication performance.

Key Advantages

Excellent High-Temperature Resistance

309S stainless steel offers excellent resistance to oxidation at elevated temperatures, making it suitable for demanding thermal applications.

Superior Oxidation Resistance

The high chromium and nickel content forms a protective oxide layer, helping reduce surface oxidation under appropriate high-temperature conditions.

Good Weldability and Fabrication

The low carbon content provides good weldability, making 309S stainless steel suitable for industrial fabrication and customized components.

Reliable Material Performance

309S stainless steel combines heat resistance, corrosion resistance, and good fabrication properties for industrial manufacturing applications.

Custom Sizes and Processing

Our 309S Stainless Steel Sheet and Plate for High Temperature Applications can be supplied in customized dimensions with processing services according to customer requirements.

Production and Quality Control

Our 309S stainless steel sheets and plates are supplied with quality inspection and processing services to meet industrial requirements.

Available services include:

  • Stainless steel sheet and plate cutting

  • Customized dimensions and thicknesses

  • Surface finishing and polishing

  • Edge processing

  • Dimensional inspection

  • Material certification upon request

Quality control procedures may include surface inspection, dimensional verification, and material composition checks according to order specifications.

Packaging and Shipping

309S Stainless Steel Sheet and Plate for High Temperature Applications is packaged carefully to protect the material during handling, storage, and international transportation.

Standard packaging options include protective wrapping, wooden pallets, and steel strapping.

Customized export packaging is available according to sheet dimensions, order quantity, and shipping requirements.

FAQ

Q1: What is 309S stainless steel sheet and plate used for?

309S stainless steel is commonly used in industrial furnaces, heat treatment equipment, heating systems, and other high-temperature applications requiring good oxidation resistance.

Q2: What temperature can 309S stainless steel withstand?

309S stainless steel can provide good oxidation resistance at temperatures approaching 1000°C under certain continuous operating conditions. Actual temperature limits depend on atmospheric conditions, mechanical stress, and equipment design.

Q3: What is the difference between 309S and 304 stainless steel?

309S stainless steel contains higher chromium and nickel levels than 304 stainless steel, providing better high-temperature oxidation resistance. It is generally preferred for applications involving elevated operating temperatures.

Q4: Can you supply customized 309S stainless steel sheets and plates?

Yes. Customized thicknesses, widths, lengths, and processing services are available according to customer requirements and supply capability.

Q5: Do you provide material certificates and export packaging?

Material test certificates and export seaworthy packaging can be provided based on agreed order specifications.

Contact Us for 309S Stainless Steel Sheet and Plate

Looking for a reliable supplier of 309S Stainless Steel Sheet and Plate for High Temperature Applications?

Contact us for product specifications, customized sizes, processing options, and competitive quotations.

Send us your inquiry today to discuss your stainless steel requirements.

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