ASTM A312 TP316L Stainless Steel Corrosion-Resistant Seamless Tube
ASTM A312 TP316L is a seamless stainless steel tube with excellent corrosion resistance due to its low carbon content and the addition of molybdenum. It is suitable for high-temperature applications and possesses good mechanical properties, such as high yield strength and tensile strength, making it widely used in industries such as chemical and oil and gas. The "L" in TP316L indicates a low-carbon version, which improves its weldability and resistance to intergranular corrosion.


What is the ASTM standard for 316 stainless steel pipe?
ASTM A312 TP316 ERW
For ASTM A312 TP316 ERW pipe, please refer to the dimensions of 316 stainless steel seamless pipe. 316 stainless steel pipe is an austenitic stainless steel pipe with good resistance to chloride ion corrosion stress cracking. Therefore, this pipe can be easily used in marine and seawater environments.
ASTM A312 TP316L Chemical Requirements
| Grade | UNS Designation | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel | Molybdenum |
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0 - 18.0 | 10.0 - 14.0 | 2.00 - 3.00 |
ASTM A312 TP316L Tensile Requirements
| Grade | UNS Designation | Tensile Strength | Yield, min | ||
| ksi | MPa | ksi | MPa | ||
| TP316L | S31603 | 70 | 485 | 25 | 170 |
ASTM A312 TP316L Annealing Requirements
| Grade | UNS Designation | Heat Treating Temperature | Cooling/Testing Requirements |
| TP316L | S31603 | 1900 °F [1040 °C] | water or other rapid cool |
Pipe and Filler Metal Specification
| Grade | UNS Designation | Filler Metal (AWS A5.9 Class) | UNS Designation(Filler Metal) |
| TP316 | S31603 | ER316L |
S31683, W31643 |
ASTM A312 TP316L Stainless Steel Seamless Pipe, Suitable for General Corrosive Environments
1. Excellent Corrosion Resistance
Designed with molybdenum and low carbon (C ≤ 0.035%), it resists corrosion from chloride ions, acids, and alkalis, effectively preventing pitting, crevice corrosion, and intergranular corrosion.
2. Reliable Mechanical Properties
Yield strength ≥ 170 MPa, tensile strength ≥ 485 MPa. Combining strength and toughness, it can withstand pressure and impact loads in piping systems.
3. Easy to Weld
Conventional welding is possible without preheating or special welding wire, ensuring easy installation in industries such as chemical, oil and gas, and shipbuilding.
4. Long Service Life and Economical
It has a long service life in corrosive environments, reducing maintenance and replacement costs, making it more economical in the long run.

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



