Heat Exchanger Tube
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Stainless Steel Heat Exchanger Tubes (ASTM A213 / A249)
Stainless Steel Heat Exchanger & Boiler Tubes manufactured to ASTM A213 (Seamless) and ASTM A249 (Welded) standards. Designed for high-pressure and high-temperature service with 100% Eddy Current and Hydrostatic testing.
High Performance
Industrial Material
Industrial Material
High-Performance Heat Exchanger & Boiler Tubes
For critical thermal exchange systems, general-purpose stainless tubes (ASTM A554) must not be used. Our Heat Exchanger Tubes (ASTM A213/A249) undergo rigorous manufacturing processes to ensure maximum safety and efficiency:
- Solution Annealing: Every tube is heat-treated to relieve internal stresses, making them ideal for U-bending or tube-sheet expanding without risk of cracking.
- Integrity Testing: 100% subjected to Hydrostatic Pressure Testing and Eddy Current NDT to detect even the smallest sub-surface defects.
- Dimensional Precision: Strict adherence to Outside Diameter (OD) and Wall Thickness tolerances for a perfect fit in industrial condensers and boilers.
Technical Specifications
Standards: ASTM A213 (Seamless), ASTM A249 (Welded / Bead Removed)
Available Grades: TP304, TP304L, TP316, TP316L, TP310S
Specs: ASTM A249/A269/A270, JIS G3447/G3463, CNS 6668/7383
Sizing: OD (Inches/mm) x Wall Thickness (mm or BWG)
Standard Stock Sizes: Welded Austenitic Stainless Steel Tubes
| Thickness | Outside Diameter | 1/2" | 5/8" | 3/4" | 7/8" | 1" | 1 1/4" | - | 1 1/2" | 2" | 2 1/2" | 3" | 3 1/2" | 4" | 4 1/2" |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 12.7 | 15.9 | 19 | 22.2 | 25.4 | 31.8 | 35 | 38.1 | 50.8 | 63.5 | 76.2 | 88.9 | 101.6 | 114.3 | |
| 1.20 | • | • | • | • | • | • | • | • | • | • | - | - | - | - | |
| 1.25 | • | • | • | • | • | • | • | • | • | • | - | - | - | - | |
| 1.50 | • | • | • | • | • | • | • | • | • | • | • | • | • | - | |
| 1.60 | • | • | • | • | • | • | • | • | • | • | • | • | • | - | |
| 1.65 | • | • | • | • | • | • | • | • | • | • | • | • | • | - | |
| 2.00 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |
| 2.11 | • | • | • | • | • | • | • | • | • | • | • | • | • | • | |
• = Standard Stock / Production available | - = Please contact sales
Tolerance Standards Chart
| Standard/Item | Outside Diameter | Thickness | Length | |
|---|---|---|---|---|
| ASTM A249 | < 25 mm : ± 0.10 mm | 50 - 65 mm : ± 0.25 mm | ± 10% |
OD < 50.8 mm : + 3.0 / - 0 mm OD ≥ 50.8 mm : + 5.0 / - 0 mm |
| 25 - 40 mm : ± 0.15 mm | 65 - 75 mm : ± 0.30 mm | |||
| 40 - 50 mm : ± 0.20 mm | 75 - 100 mm : ± 0.38 mm | |||
| 100 - 200 mm : + 0.38 / - 0.64 mm | ||||
| ASTM A269 | < 38.1 mm : ± 0.13 mm | 88.9 - 139.7 mm : ± 0.38 mm |
OD < 12.7 mm : ± 15% OD ≥ 12.7 mm : ± 10% |
OD < 38.1 mm : + 3.2 / - 0 mm OD ≥ 38.1 mm : + 4.8 / - 0 mm |
| 38.1 - 88.9 mm : ± 0.25 mm | 139.7 - 203.2 mm : ± 0.76 mm | |||
| ASTM A270 | ≤ 25 mm : ± 0.13 mm | 50 - 75 mm : ± 0.25 mm | ± 12.5% |
OD ≤ 100 mm : + 3.0 / - 0 mm OD > 100 mm : + 5.0 / - 0 mm |
| 25 - 50 mm : ± 0.20 mm | 75 - 100 mm : ± 0.38 mm | |||
| JIS G3447 | ≤ 38.1 mm : ± 0.19 mm / > 38.1 : ± 0.25 mm | ± 10% | + 10 mm / - 0 mm | |
| JIS G3463 | < 60 mm : ± 0.25 mm / ≥ 60 : ± 0.30 mm |
t < 2mm : + 0.4 mm t ≥ 2mm : ± 20% |
OD ≤ 50 : + 7 mm OD > 50 : + 10 mm |
|
Frequently Asked Questions (FAQ)
It depends on your application. Seamless (A213) is ideal for extreme pressures and critical safety points. Welded (A249) is more cost-effective and, with modern bead-removal technology, offers thermal efficiency very close to seamless tubes.
Yes. Our tubes are fully solution annealed, ensuring the ductility required for precise U-bending (U-Tubes) without cracking or wall thinning.