ASME SA312 TP304 Stainless Steel Pipes for High Temperature Environments
ASME SA312 TP304 Stainless Steel Pipes for High Temperature Environments
ASME SA312 TP304 stainless steel pipes are suitable for high-temperature environments up to approximately 870°C (1600°F) due to their high strength and excellent corrosion resistance; however, prolonged exposure to high temperatures will reduce their corrosion resistance. Key characteristics include a minimum tensile strength of 515 MPa (75 Ksi) and a minimum yield strength of 205 MPa (30 Ksi). These pipes are widely used in industries such as petrochemicals, chemicals, and power generation, for example, in boilers and heat exchangers.
What is the temperature range for ASTM A312 TP304?
The solution heat treatment of ASTM A312 TP304 stainless steel tubes can be performed in the temperature range of 1010 to 1120 degrees Celsius.
ASME SA312 TP304/TP304L Chemical Requirements
| Grade | UNS Designation | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel |
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0 - 20.0 | 8.0 - 11.0 |
| TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0 - 20.0 | 8.0 - 13.0 |
ASME SA312 TP304/TP304L Tensile Requirements
| Grade | UNS Designation | Tensile Strength | Yield, min | ||
| ksi | MPa | ksi | MPa | ||
| TP304 | S30400 | 75 | 515 | 30 | 205 |
| TP304L | S30403 | 75 | 515 | 24 | 170 |
Pipe and Filler Metal Specification
| Grade | UNS Designation | Filler Metal (AWS A5.9 Class) | UNS Designation(Filler Metal) |
| TP304 | S30400 | ER308 | S30800, W30840 |
| TP304L | S30403 | ER308L | S30883, W30843 |
ASME SA312 TP304/TP304L Annealing Requirements
| Grade | UNS Designation | Heat Treating Temperature | Cooling/Testing Requirements |
| TP304 | S30400 | 1900 °F [1040 °C] | water or other rapid cool |
| TP304L | S30403 | 1900 °F [1040 °C] | water or other rapid cool |
ASME SA312 TP304/TP304L Stainless Steel Seamless Pipe, Suitable for High-Temperature Environments
ASME SA312 TP304 and TP304L stainless steel seamless pipes are ideal for high-temperature environments.
TP304 (UNS S30400) has excellent high-temperature resistance and oxidation resistance, and is commonly used in industrial furnaces. TP304L (UNS S30403) offers superior weldability and corrosion resistance in high-temperature and corrosive environments such as petrochemical heaters.
Both types of pipe ensure structural integrity and durability under high-temperature conditions, playing a crucial role in applications such as power plant boilers. They stably transport high-temperature fluids, ensuring reliable operation in harsh thermal environments.
Gnee Steel specializes in the production of a wide range of stainless steel products. Gnee Steel's product packaging includes: Steel Strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during ocean shipping, and then secured with steel strapping. Wooden Cases/Crates: Pipes are typically packaged in wooden cases or crates to protect the pipes during transportation, especially those that are longer or have larger diameters. Seaworthy Export Packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin Packaging: This prevents rain, seawater, and other external factors from penetrating the export crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in the aerospace, chemical, power, automotive, and nuclear energy sectors, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing or customized alloy material solutions, please contact us for a quote: ru@gneesteelgroup.com
