TP316L tubing combines the thermal performance of TP316 with improved weldability and corrosion resistance, making it suitable for long-cycle heat exchange systems exposed to corrosive media.
When your heat transfer application requires exceptional reliability and uncompromising corrosion resistance, ASTM A213 / ASME SA213 TP316L stainless steel tubes are the ideal choice. This low-carbon austenitic stainless steel is specifically designed for boiler, superheater, and heat exchanger applications, achieving an excellent balance of formability, weldability, and corrosion resistance to meet the demands of critical industrial applications.
ASTM A213 TP316L tubes are manufactured entirely by seamless processes, eliminating potential weak points associated with welded joints in high-stress, corrosive environments. TP316L features low carbon content (≤0.03%) and an optimized alloy composition, maintaining excellent corrosion resistance even under high-temperature welding conditions. It is an ideal material for heat exchangers in corrosive chemical and power generation applications.
| Specification | Range / Details |
| Outer Diameter (OD) | 6.0 mm – 426 mm |
| Wall Thickness (WT) | 0.5 mm – 13 mm |
| Length | Customizable according to client requirements |
| Surface Finish | Pickled, Annealed, Polished |
| Material Standard | ASTM A312 / ASME SA312 |
| Typical Grades | TP316L |
| Element | Content Range | Function / Description |
| Carbon (C) | ≤ 0.03% | Critical for avoiding sensitization |
| Chromium (Cr) | 16.0 – 18.0% | Provides oxidation and corrosion resistance |
| Nickel (Ni) | 10.0 – 14.0% | Stabilizes austenitic structure |
| Molybdenum (Mo) | 2.0 – 3.0% | Enhances pitting and crevice corrosion resistance |
| Manganese (Mn) | ≤ 2.0% | Improves hot working properties |
| Silicon (Si) | ≤ 1.0% | Aids in deoxidation and strength |
| Phosphorus (P) | ≤ 0.045% | Controls impurities for toughness |
| Sulfur (S) | ≤ 0.030% | Improves machinability (limited content) |
| Property | Minimum Requirement |
| Tensile Strength | 485 MPa (70 ksi) |
| Yield Strength (0.2% offset) | 170 MPa (25 ksi) |
| Elongation (in 2") | 35% |
| Hardness (Brinell) | ≤ 217 HB |
| Creep Rupture Strength | 90 MPa at 650°C (1202°F) for 10,000 hours |
Our ASTM A213 TP316L tubes undergo comprehensive testing to ensure they meet the highest standards for heat exchanger applications:
Q: What is the difference between ASTM A213 TP316L tubes and ASTM A312 TP316L pipes?
A: ASTM A213 is specifically designed for seamless tubes used in boilers, superheaters, and heat exchangers, with stricter tolerances and material requirements compared to ASTM A312 pipes. A213 tubes are exclusively seamless, whereas A312 includes both seamless and welded options.
Q: Can TP316L stainless steel tubes be used in high-temperature applications?
A: TP316L performs well at elevated temperatures, but due to its lower carbon content, its creep strength is slightly lower than TP316. For continuous service above 500°C (932°F), TP316 or TP316Ti is recommended for improved high-temperature strength.
Q: What surface finishes are available for ASTM A213 TP316L tubes?
A: We offer:
Q: Are ASTM A213 TP316L tubes suitable for seawater environments?
A: Yes, the molybdenum content in TP316L provides excellent resistance to seawater corrosion. For applications with very high chloride concentrations (above 10,000 ppm), such as desalination, the use of corrosion inhibitors is recommended, or upgrading to higher alloy grades such as duplex stainless steel may be considered.
Explore our full range of stainless steel grades for pipes and tubes, including TP304, TP316, TP321, duplex, and super duplex materials.
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