Stainless Steel 347H Plates: High-Temperature Performance and Corrosion Resistance Redefined

Stainless Steel 347H Plates are a highly sought-after material in industries requiring excellent resistance to high temperatures and corrosion. Known for their exceptional mechanical properties and durability, these plates are extensively used in industries such as power generation, petroleum refining, chemical processing, and heat treatment. Made from a high carbon version of 347 stainless steel, SS 347H plates are specially designed to provide superior strength at elevated temperatures, making them a popular choice for high-pressure and high-temperature environments.

In this article, we explore the key features, applications, benefits, and specifications of Stainless Steel 347H Plates, while optimizing the content for SEO to improve visibility for businesses and suppliers in the metal and alloy industry.

What is Stainless Steel 347H?

Stainless Steel 347H is a stabilized austenitic stainless steel alloy that contains chromium, nickel, and columbium (niobium). The 'H' in 347H stands for "high carbon," which allows for better creep resistance and strength at elevated temperatures. The addition of columbium stabilizes the alloy, preventing carbide precipitation during welding and prolonged exposure to high temperatures.

This makes SS 347H Plates ideal for use in environments that experience repeated heating and cooling cycles, such as furnace parts, heat exchangers, and reactor vessels.

Key Features of Stainless Steel 347H Plates

High Temperature Resistance

SS 347H plates perform exceptionally well in temperatures ranging from 800°F to 1500°F (427°C to 816°C). The high carbon content enhances strength and creep resistance under high-temperature conditions.

Excellent Corrosion Resistance

These plates offer superior resistance to intergranular corrosion, oxidation, and general corrosion in acidic and harsh environments. This makes them suitable for chemical and petrochemical industries.

Weldability and Fabrication

Stainless Steel 347H is easily weldable using standard techniques. The presence of columbium prevents sensitization, making it suitable for welding without post-weld heat treatment.

Dimensional Accuracy and Surface Finish

SS 347H plates are available in various finishes such as hot-rolled, cold-rolled, and polished, ensuring suitability for both structural and decorative applications.

Applications of SS 347H Plates

Due to their robust properties, Stainless Steel 347H Plates are widely used in high-stress environments, including:

Petrochemical and Chemical Processing Equipment

Vessels, pipes, and tanks that handle corrosive fluids or gases at high temperatures.

Power Generation Plants

Boiler tubes, heat exchangers, and superheaters made from SS 347H offer long service life and resistance to thermal fatigue.

Aerospace and Automotive Sectors

Components exposed to high heat, such as engine parts and exhaust systems.

Food Processing and Pharmaceutical Equipment

Thanks to its corrosion resistance and hygienic finish, SS 347H is suitable for equipment in sanitary applications.

Pulp and Paper Industry

Digesters and bleaching equipment made of 347H plates withstand chemical attack and high process temperatures.

Advantages of Stainless Steel 347H Plates

Enhanced Creep Resistance

The high carbon content in 347H increases the alloy's ability to withstand stress and deformation over long periods at high temperatures.

Long-Term Durability

With excellent oxidation resistance and thermal stability, these plates reduce maintenance needs and operational costs.

Versatility

Easily formed, welded, and machined into different shapes and sizes, SS 347H plates are available in customized dimensions.

Global Availability

Trusted manufacturers and suppliers offer SS 347H plates worldwide, ensuring consistent quality and availability.

Technical Specifications

Property Specification

Grade Stainless Steel 347H

Standard ASTM A240, ASME SA240

Thickness 0.3 mm to 100 mm

Width 1000 mm to 2500 mm

Length Up to 6000 mm (custom sizes available)

Finish Hot rolled, cold rolled, 2B, BA, mirror

Hardness Soft, Hard, Half Hard, Quarter Hard

Why Choose Stainless Steel 347H Plates?

Choosing SS 347H plates means investing in reliability and performance. Whether you are dealing with extreme temperatures, corrosive environments, or demanding fabrication requirements, these plates deliver consistent performance. Trusted by engineers and project managers globally, SS 347H stainless steel plates ensure safety, longevity, and cost-effectiveness for critical operations.

Conclusion

Stainless Steel 347H Plates are a perfect solution for applications requiring resistance to high temperatures and corrosion. Their robust mechanical properties, combined with excellent formability and weldability, make them indispensable across multiple industries. Whether you are a manufacturer, supplier, or end-user, incorporating SS 347H plates into your operations guarantees enhanced performance, reliability, and durability.

For high-quality Stainless Steel 347H Plates at competitive prices, connect with certified manufacturers and exporters who provide mill test certificates, customized solutions, and timely delivery.

SEO Keywords: Stainless Steel 347H Plates, SS 347H Plate Supplier, SS 347H Plate Exporter, ASTM A240 347H Plates, High Temperature Stainless Steel Plates, 347H Stainless Steel Plate Manufacturers, 347H Steel Plate Applications, SS 347H Plates Price, Buy Stainless Steel 347H Plates India.