Stainless Steel 304H is another variant of the popular Stainless Steel 304. The "H" in 304H stands for "high carbon," indicating that this grade has a higher carbon content compared to the standard 304 stainless steel. The increased carbon content is designed to enhance the high-temperature strength and creep resistance of the material.

Key characteristics and properties of Stainless Steel 304H include:

• High-Temperature Strength: The higher carbon content in 304H provides improved high-temperature strength and creep resistance compared to the lower carbon grades like 304 and 304L. This makes 304H suitable for applications that involve elevated temperatures.
• Corrosion Resistance: Similar to other 304 variants, 304H offers good corrosion resistance in a variety of environments, making it suitable for applications in mildly corrosive and moderately aggressive conditions.
• Weldability: While the higher carbon content makes 304H more susceptible to sensitization during welding, proper heat treatment, and post-welding procedures can mitigate this issue. It's important to use suitable welding practices and select appropriate filler materials.
• Heat Resistance: 304H is designed to perform well at elevated temperatures, making it suitable for applications involving continuous or intermittent high-temperature exposure.
• Machinability: 304H can be machined using standard methods, but its work-hardening characteristics may require adjustments to machining parameters.