ASTM A213 TP316L Stainless Steel Heat Exchanger Tube
Product Overview
ASTM A213 / ASME SA213 TP316L stainless steel heat exchanger tubes are widely used in condensers, boilers, heat exchangers, and industrial thermal processing systems requiring stable corrosion resistance and reliable heat transfer performance.
Manufactured through seamless cold drawn processing, TP316L tubes provide improved dimensional consistency, smooth surface quality, and stable wall thickness control for industrial heat transfer applications.
TP316L material corresponds to:
The low carbon content helps improve welding compatibility and reduces the risk of intergranular corrosion after fabrication or thermal processing.
These tubes are commonly supplied in:
- Annealed condition
- Pickled and passivated surface
- Seamless cold drawn construction
Typical applications include:
- Petrochemical heat exchangers
- Condenser systems
- Offshore processing equipment
- Boiler systems
- Marine thermal equipment
- Industrial cooling systems
Product Specifications
| Item |
Specification |
| Standard |
ASTM A213 / ASME SA213 |
| Material Grade |
TP316L |
| UNS Number |
S31603 |
| EN Grade |
1.4404 |
| Product Type |
Seamless Heat Exchanger Tube |
| Manufacturing Process |
Cold Drawn |
| Surface Finish |
Pickled & Passivated |
| Heat Treatment |
Solution Annealed |
| Outside Diameter |
6.35 – 76.2 mm |
| Wall Thickness |
0.71 – 8.0 mm |
| Length |
Up to 26 meters |
| Tube Ends |
Plain End / Bevel end |
| Testing |
ET / UT / Hydro Test |
| Application |
Heat Exchanger / Condenser / Boiler |
TP316L Material Characteristics
TP316L stainless steel contains molybdenum and low carbon content, making it suitable for industrial systems exposed to:
- Chloride-containing environments
- High humidity conditions
- Continuous thermal cycling
- Corrosive process media
Compared with standard TP304 tubing, TP316L provides improved resistance to:
- Pitting corrosion
- Crevice corrosion
- Surface oxidation
This makes TP316L suitable for marine, chemical, and offshore heat transfer systems.
Manufacturing Features
Seamless Cold Drawn Construction
Seamless cold drawn processing helps improve:
- Dimensional tolerance consistency
- Surface smoothness
- Wall thickness uniformity
- Tube bending capability
This is particularly important for shell and tube heat exchanger fabrication.
Solution Annealed Condition
Solution annealing helps:
- Restore material ductility
- Reduce residual stress
- Improve fabrication performance
This process is especially beneficial after tube bending or expansion processing.
Pickled and Passivated Surface
Pickling and passivation help remove:
- Surface oxide scale
- Heat tint contamination
- Iron impurities
This improves corrosion resistance performance in condenser and boiler systems.
Mechanical Properties
| Property |
TP316L Requirement |
| Tensile Strength |
≥ 485 MPa |
| Yield Strength |
≥ 170 MPa |
| Elongation |
≥ 35% |
| Hardness |
≤ 90 HRB |
These properties support:
- Tube expansion
- Heat exchanger fabrication
- Long-term thermal operation
Quality Inspection & Testing
Available inspection methods include:
- Eddy Current Testing (ET)
- Ultrasonic Testing (UT)
- Hydrostatic Testing
- PMI Inspection
- Dimensional Inspection
- Surface Quality Inspection
Optional documents:
- EN 10204 3.1 MTC
- Third-party inspection report
- Raw material certificate
Product Advantages
| Feature |
Technical Benefit |
| TP316L Material |
Improved corrosion resistance |
| Seamless Construction |
Reduces weld-related risks |
| Cold Drawn Process |
Better dimensional consistency |
| Pickled Surface |
Cleaner surface condition |
| Solution Annealed |
Improved ductility |
| Low Carbon Content |
Better welding compatibility |
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