Stainless Steel 309H Plates

ASC LLP is your trusted source for high-quality 309H stainless steel plates. Known for their exceptional durability, high-temperature resistance, and superior corrosion resistance, these plates are an ideal choice for various industrial applications. In this detailed guide, we will explore what stainless steel 309H plates are, their properties, material composition, and the advantages they offer for your specific needs.

What is 309H Stainless Steel Plates?

stainless steel plates 309H are a high-carbon version of the 309 stainless steel alloy. The “H” in 309H stands for “high carbon,” which means these plates contain a higher carbon content compared to standard 309 stainless steel. This increased carbon content enhances the material’s high-temperature strength and stability, making it suitable for applications that involve prolonged exposure to elevated temperatures.

309H Stainless Steel Plates

Properties of 309H Stainless Steel Plates

The properties of 309H stainless steel plates make them a preferred choice in many industries. Here are some key characteristics:

1. High-Temperature Resistance

One of the standout properties of 309H SS plates is their exceptional resistance to high temperatures. These plates can withstand temperatures up to 1035°C (1900°F) without losing their structural integrity. This makes them ideal for use in environments where extreme heat is a factor, such as in furnaces, heat exchangers, and chemical processing equipment.

2. Corrosion Resistance

SS 309H plates offer excellent resistance to oxidation and corrosion. This resistance is particularly notable in environments with high sulfur content and other aggressive elements. The alloy’s ability to resist corrosion at elevated temperatures further extends its lifespan in harsh operating conditions.

3. High Carbon Content

The higher carbon content in SS 309H plates enhances their mechanical properties, including tensile strength and hardness. This makes them more robust and capable of withstanding mechanical stress, which is crucial in demanding applications.

4. Versatility

These plates are highly versatile and can be used in various applications, including boiler components, heat treatment equipment, kiln linings, and more. Their versatility is a testament to their superior performance in different industrial environments.

Advantages of 309H Stainless Steel Plates

1. Superior High-Temperature Performance

The ability of 309H SS plates to maintain their strength and integrity at high temperatures is one of their most significant advantages. This makes them indispensable in industries such as petrochemical, power generation, and thermal processing.

2. Enhanced Durability

The robust nature of 309H SS plates, due to their high carbon content, means they can withstand harsh conditions and mechanical stresses better than many other stainless steel grades. This durability translates to longer service life and reduced maintenance costs.

3. Excellent Corrosion Resistance

In environments where corrosive elements are present, stainless steel plates 309H provide superior protection against rust and corrosion. This property ensures that the plates remain functional and reliable even in challenging conditions.

4. Versatility in Applications

The versatility of 309H SS plates allows them to be used in a wide range of applications, from high-temperature industrial processes to architectural projects requiring aesthetic appeal and structural integrity.

5. Cost-Effectiveness

Although the initial cost of SS 309H plates may be higher than some other materials, their longevity and reduced need for frequent replacement make them a cost-effective choice in the long run. Investing in these plates means investing in reliability and performance.

layer of Stainless Steel plates
Stainless Steel Sheets

Schedule and Size Chart for 309H SS Plates

Thickness (mm) Width (mm) Length (mm)
3.0 – 6.0 1000 – 1500 2000 – 6000
6.1 – 12.0 1000 – 2000 2000 – 6000
12.1 – 20.0 1000 – 2500 2000 – 6000
20.1 – 50.0 1000 – 2500 2000 – 6000

Mechanical Properties Chart

Property Value
Tensile Strength 620 MPa (90 ksi)
Yield Strength 275 MPa (40 ksi)
Elongation 40%
Hardness, Rockwell B (HRB) ≤ 95
Modulus of Elasticity 200 GPa (29,000 ksi)

Specifications Chart

Standard Specification
ASTM ASTM A240 / A240M
ASME ASME SA240 / SA240M
EN 1.4828
JIS SUS 309H
UNS S30909

Chemical Composition Chart

Element Composition (%)
Chromium 22.0 – 24.0
Nickel 12.0 – 15.0
Carbon 0.04 – 0.10
Manganese 2.0 max
Silicon 1.0 max
Phosphorus 0.045 max
Sulfur 0.030 max

Physical Properties Chart

Property Value
Density 7.89 g/cm³
Melting Point 1400 – 1450 °C (2550 – 2650 °F)
Thermal Conductivity 14.2 W/m·K at 100°C
Specific Heat Capacity 500 J/kg·K
Electrical Resistivity 0.94 µΩ·m at 20°C

Application Chart

Industry Application
Chemical Processing Reaction vessels, storage tanks, piping systems
Power Generation Superheater tubes, boiler baffles, heat exchanger tubes
Furnace and Heat Treatment Furnace linings, heat treatment trays
Petrochemical Refinery equipment, catalytic converters
Food Processing High-temperature cooking and baking equipment
Aerospace Exhaust systems, jet engine components

Why Choose ASC LLP for 309H SS Plates?

At ASC LLP, we are committed to providing our clients with top-quality stainless steel products that meet their specific needs. Our 309H stainless steel plates are sourced from reputable manufacturers and adhere to stringent quality standards. Here’s why you should choose us:

  • Extensive Inventory: We maintain a comprehensive stock of 309H stainless steel plates in various sizes and thicknesses to meet diverse requirements.
  • Quality Assurance: Our products undergo rigorous quality checks to ensure they meet industry standards and exceed client expectations.
  • Expertise: With years of experience in the industry, our team of experts can provide valuable insights and guidance to help you choose the right materials for your applications.
  • Customer Service: We pride ourselves on our exceptional customer service, ensuring timely deliveries and responsive support for all your needs.

309H SS plates offer a blend of high-temperature resistance, corrosion resistance, and mechanical strength, making them an excellent choice for a wide range of industrial applications. At ASC LLP, we provide top-quality stainless steel 309H plates that meet your specific requirements, backed by our commitment to quality and customer satisfaction. Contact us today to learn more about our products and how we can help meet your industrial needs.

Global Reach

Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality stainless steel 309H plates. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Metal globe

Countries We Export To

UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

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