SS 347/347H

SS 347 and SS 347H are chromium-nickel stainless steels that belong to the austenitic group of stainless steels. Both grades contain niobium (or columbium) as a stabilizing element, which helps reduce the risk of intergranular corrosion, particularly in high-temperature environments. They are highly resistant to oxidation, corrosion, and scaling, making them suitable for applications in high-temperature and harsh environments.

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Advantages of SS 304/304L:

• Excellent Resistance to Sensitization: The niobium stabilizes the material, reducing the risk of chromium carbide formation, thus offering excellent resistance to intergranular corrosion, especially after welding.
• Superior High-Temperature Performance (347H): SS 347H offers enhanced creep and oxidation resistance, making it suitable for use in extreme high-temperature environments./li>
• Corrosion Resistance: Both grades are highly resistant to corrosion in various environments, including acids, salts, and high-temperature gases.
• Durability and Strength: These alloys offer high strength and excellent long-term durability in harsh and demanding environments, especially SS 347H in applications requiring strength at elevated temperatures.