ASTM A213 TP316L Stainless Seamless Heat Exchanger Tube for High Corrosion Service in Heat Exchanger
ASTM A213 TP316L Stainless Seamless Heat Exchanger Tube for High Corrosion Service in Heat Exchangers
With over 35 years of specialized experience and a proven track record of supplying to 85 countries worldwide, YUHONG Group is a leading manufacturer of high-performance tubing for the most demanding industrial environments. We engineer and produce premium ASTM A213 TP316L Stainless Seamless Heat Exchanger Tubes, specifically designed to deliver unmatched reliability in services where corrosion is a primary concern.
Chemical Composition of Grade TP316L (UNS S31603)
| Element | Requirement (%) | Notes |
| Grade | TP316L | Austenitic Stainless Steel |
| UNS Designation | S31603 | |
| Carbon (C), max | 0.035D | Low-carbon "L" grade |
| Manganese (Mn), max | 2 | |
| Phosphorus (P), max | 0.045 | |
| Sulfur (S), max | 0.03 | |
| Silicon (Si), max | 1 | |
| Chromium (Cr) | 16.0 - 18.0 | |
| Nickel (Ni) | 10.0 - 14.0 | |
| Molybdenum (Mo) | 2.00 - 3.00 | For enhanced corrosion resistance |
Heat Treatment Specifications for Grade TP316L (UNS S31603)
| Parameter | Specification | Notes |
| Grade | TP316L | Austenitic Stainless Steel |
| UNS Designation | S31603 | |
| Heat Treat Type | Solution Treatment | |
| Solution Temperature, min | 1900 °F [1040 °C] | |
| Cooling Media | Water or other rapid cool |
|
Tensile and Hardness Requirements for Grade TP316L (UNS S31603)
| Property | Requirement | Notes |
| Grade | TP316L | Austenitic Stainless Steel |
| UNS Designation | S31603 | |
| Tensile Strength, min | 70 ksi [485 MPa] | |
| Yield Strength, min | 25 ksi [170 MPa] | 0.2% offset |
| Elongation in 2 in. or 50 mm, min | 35% | |
| Brinell / Vickers Hardness, max | 192 HBW / 200 HV | |
| Rockwell Hardness, max | 90 HRB |
Application Advantages of ASTM A213 TP316L Seamless Heat Exchanger Tube
- Excellent Resistance to Chloride Attack & Pitting Corrosion: The addition of Molybdenum (2-3%) provides superior performance in environments containing chlorides, making it ideal for use with seawater, brackish water, and chemical process streams where standard 304/304L grades would fail.
- Good High-Temperature Strength and Oxidation Resistance: Maintains structural integrity and resists scaling at elevated operating temperatures common in heat exchangers, superheaters, and condensers.
- Superior Durability in Acidic and Caustic Environments: Offers enhanced general corrosion resistance compared to standard grades, ensuring longer service life in chemical processing, pulp and paper, and pharmaceutical applications.
- Leak-Proof Reliability from Seamless Construction: The absence of a weld seam eliminates the most common point of failure in corrosive service, providing greater safety and pressure integrity for critical systems.
- Low Carbon Content for Improved Weldability and Service: The "L" grade minimizes harmful carbide precipitation during welding, preserving corrosion resistance in the heat-affected zone and preventing intergranular corrosion.
- Cost-Effective Lifecycle Performance: While the initial cost is higher than 304/304L, its extended service life and reduced maintenance and downtime in aggressive environments result in a lower total cost of ownership.
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