ASTM A312 / ASME SA312 TP304H Stainless Steel Seamless Pipe

Stainless steel 304H pipes are designed for high-temperature services. The high carbon content in TP304H provides improved creep strength compared to standard 304 stainless steel. This is beneficial for applications where the pipe is subjected to high temperatures for prolonged periods. While A312 TP304H pipes can be welded using standard welding methods, care must be taken to manage the heat input and post-weld heat treatment to minimize the risk of sensitization and carbide precipitation, which can affect the corrosion resistance of the material.

Equivalent Grade of Stainless Steel 304H

European equivalent grade for Austenitic creep resisting steel 304H ( AISI, ASTM, UNS): X6CrNi18-10 (1.4948)
Chemical composition and properties of european equivalents (EN) for 304H (USA, AISI, ASTM, UNS): X6CrNi18-10 (1.4948)

Material Grade

Applications

Here are some common applications of A312 TP304H stainless steel seamless pipes:

1. High-Temperature Applications: A312 TP304H stainless steel seamless pipes are used in high-temperature environments such as in the manufacturing of boilers, heat exchangers, and superheaters.

2. Oil and Gas Industry: These pipes are utilized in the oil and gas industry for transporting fluids and gases under high pressure and temperature conditions.

3. Chemical Processing: A312 TP304H seamless pipes are suitable for chemical processing plants where corrosion resistance and high-temperature strength are essential.

4. Petrochemical Industry: These pipes are employed in petrochemical plants for various applications such as refining, processing, and transporting chemicals.

5. Water Treatment: A312 TP304H stainless steel seamless pipes are used in water treatment plants for conveying water in corrosive environments.

6. Food Industry: In the food industry, these pipes are used in processing and transporting food products due to their hygienic properties and corrosion resistance.

7. Pharmaceutical Industry: A312 TP304H seamless pipes find applications in the pharmaceutical industry for manufacturing equipment that requires high cleanliness standards and corrosion resistance.

8. Architectural and Construction: These pipes are used in architectural and construction projects where corrosion resistance and aesthetic appeal are important factors.