ASTM A312 TP304L pipe is a low-carbon, seamless, austenitic stainless steel designed for general high-temperature and corrosive applications. It offers excellent toughness and weldability, eliminating the need for post-weld annealing. Its chemical composition, particularly its low carbon content, minimizes carbide precipitation, making it suitable for thick-wall applications and environments involving welding. Key attributes include its non-reactivity and corrosion resistance, making it suitable for food processing, petrochemical production, and oil and gas transportation.
316 stainless steel pipe has a minimum tensile strength of 515 MPa and a minimum yield strength of 200 MPa. Its density is as high as 8,000 kg/m³. Standard wall thicknesses for these pipes range from 0.5 mm to 6.35 mm. SS 316 seamless pipe does not have fillet welds.
ASTM A312 TP304L Stainless Steel Seamless Pipe Chemical Composition
| SS GRADE | ASTM A312 CHEMICAL COMPOSITION % MAXIMUM | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | MN | P | S | SI | CR | NI | MO | TI | |
| TP304L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-13.0 | --- | --- |
ASTM A312 TP304L Stainless Steel Seamless Pipe Mechanical Properties
| SS GRADE | HEAT TREATMENT | Tensile Strength, min ksi [MPa] | Yield Strength, min ksi [MPa] |
|---|---|---|---|
| TP304L | Solution | 70 [484] | 25 [170] |
Applications of ASTM A312 TP304L Seamless Stainless Steel Pipe
Chemical and Petrochemical Industries: Various chemical media transport, process piping, and heat exchanger tubes.
Energy and Power Industries: Boiler tubes and heat exchanger tubes in power plants.
High and Low Temperature Applications: Examples include heat exchangers (high temperature) and liquefied gas transport (low temperature).
Food and Beverage Industries: Due to its corrosion resistance and easy cleanability, it is commonly used in process piping systems in breweries, dairies, and pharmaceutical plants.
Pharmaceutical and Biotechnology Industries: Process systems and pure water piping with extremely high requirements for cleanliness and corrosion resistance.
Marine and Offshore Engineering: Seawater cooling systems and ship piping.
Typical Applications of ASTM A312 TP304L Stainless Steel Seamless Annealed Pipe
Food Processing: Used in equipment requiring sanitary conditions within the food industry.
Petrochemical Industry: Suitable for process piping in refineries and petrochemical plants.
Oil and Gas: Widely used in transportation pipelines and processing units.
Industrial and Construction: Suitable for a variety of components due to its forming and welding characteristics.
Key Considerations for ASTM A312 TP304L Stainless Steel Seamless Annealed Pipe
Carbon Content: The "L" in TP304L indicates low carbon content, a key characteristic for weldability.
Temperature Limitations: While suitable for high temperatures, higher temperatures affect corrosion resistance, and other grades may be required for extreme conditions.
Surface Finish: Pipe is available with various surface finishes, such as bright annealed (2R) or #4 finish, depending on specific requirements.
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
