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Stainless Steel Heat Exchanger Tubes
Stainless Steel Heat Exchanger Tube (Boiler / Condenser)
Stainless Steel Heat Exchanger Tubes are engineered for efficient heat transfer in critical industrial processes. Manufactured to withstand high pressures, extreme temperatures, and corrosive environments, they are the core components of boilers, condensers, and shell & tube heat exchangers.
Types & Standards:
- Seamless (ASTM A213): Produced without welding seams. Offers superior strength and pressure resistance. Ideal for high-pressure boilers and superheaters.
- Welded (ASTM A249): Produced from strip with a longitudinal weld seam (bead removed). Cost-effective and excellent concentricity. Suitable for condensers and general heat exchangers.
- Grades: TP304/304L and TP316/316L.
Specifications:
- OD Size: Common sizes: 15.88mm (5/8"), 19.05mm (3/4"), 25.4mm (1").
- Thickness: Specified in BWG or mm (e.g., BWG 16, 18).
- Length: 6.0 Meters (Standard straight length).
Applications:
- Shell & Tube Heat Exchangers
- Condensers and Evaporators
- Power Generation and Chemical Processing
Trinity Dynamic supplies ASTM A213/A249 Tubes with 100% Eddy Current testing. We guarantee material quality and dimensional precision.
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Why Choose Our Heat Exchanger Tubes?
Unlike standard ornamental tubes, our Heat Exchanger Tubes undergo rigorous testing and heat treatment (Solution Annealing). This ensures the tubes are soft enough for bending (U-bending) and expanding into tube sheets without cracking, while maintaining high corrosion resistance.
Testing & Quality Assurance
Every tube we supply is subjected to:
- Eddy Current Test: To detect surface and sub-surface defects.
- Hydrostatic Test: To verify leak-tightness under pressure.
- Dimensional Check: Strict tolerance control on OD and Wall Thickness.
Technical Specifications
Standards: ASTM A213 / ASME SA213 (Seamless), ASTM A249 / ASME SA249 (Welded)
Material Grades: TP304, TP304L, TP316, TP316L
Surface Condition: Pickled & Annealed (AP) or Bright Annealed (BA)
Standard Stock Sizes (OD x Thickness)
| Welded Austenitic Stainless Steel Tubes | |||||||||||||||
| Welded Austenitic stainless steel tubes for Heat-Exchanger,General service & sanitary tubing | |||||||||||||||
| Grade : 304 , 316L l Spec : ASTM A249/A269/A270, JIS G3447/G3463, CNS 6668/7383 | |||||||||||||||
| Thickness | Qutside 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 (25) |
31.80 (32) |
35 | 38.10 (38) |
50.8 (51) |
63.5 | 76.2 | 88.9 | 101.6 | 114.3 | |
| 1.20 | · | · | · | · | · | · | · | · | · | · | - | - | - | - | |
| 1.25 | · | · | · | · | · | · | · | · | · | · | - | - | - | - | |
| 1.50 | · | · | · | · | · | · | · | · | · | · | · | · | · | - | |
| 1.60 | · | · | · | · | · | · | · | · | · | · | · | · | · | - | |
| 1.65 | · | · | · | · | · | · | · | · | · | · | · | · | · | - | |
| 2.00 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | |
| 2.11 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | |
| Tolerance | |||||||||||
| Welded Austenitic stainless steel tubes for Heat-Exchanger,General service & sanitary tubing | |||||||||||
| Spec : ASTM A249/A269, JIS G3447/G3463, CNS 6668/7383 | |||||||||||
| Standard/Item | Qutside Diameter | Thickness | Length | ||||||||
| ASTM A249 | < 25mm | + 0.10mm | |||||||||
| ≥ 25mm | ≤ 40mm | ± 0.15mm | |||||||||
| >40mm | < 50mm | ± 0.20mm | OD < 50.80mm | + 3.0mm | |||||||
| ≥ 50mm | < 65mm | ± 0.25mm | ± 10% | - 0mm | |||||||
| ≥ 65mm | < 75mm | ± 0.30mm | OD ≥ 50.80mm | + 5.0mm | |||||||
| ≥ 75mm | ≤ 100mm | ± 0.38mm | - 0mm | ||||||||
| > 100mm | ≤ 200mm | + 0.38mm | - 0.64mm | ||||||||
| > 200mm | ≤ 225mm | + 0.38mm | - 1.14mm | ||||||||
| ASTM A269 | < 38.1mm | ± 0.13mm | OD < 38.1mm | + 3.2mm | |||||||
| ≥ 38.1mm | < 88.9mm | ± 0.25mm | OD < 12.7mm ± 15% | - 0mm | |||||||
| ≥ 88.9mm | < 139.7mm | ± 0.38mm | OD ≥ 12.7mm ± 10% | OD ≥ 38.1mm | + 4.8mm | ||||||
| ≥ 139.7mm | < 203.2mm | ± 0.76mm | - 0mm | ||||||||
| ASTM A270 | ≤ 25mm | ± 0.13mm | OD ≤ 100mm | + 3.0mm | |||||||
| > 25mm | ≤ 50mm | ± 0.20mm | - 0mm | ||||||||
| > 50mm | ≤ 75mm | ± 0.25mm | ± 12.5% | OD > 100mm | + 5.0mm | ||||||
| > 75mm | ≤ 100mm | ± 0.38mm | - 0mm | ||||||||
| > 100mm | < 140mm | ± 0.38mm | |||||||||
| CNS 6668 JIS G3447 |
≤ 25.4mm | ± 0.15mm | |||||||||
| > 25.4mm | ≤ 31.8mm | ± 0.16mm | |||||||||
| > 31.8mm | ≤ 38.1mm | ± 0.19mm | |||||||||
| > 38.1mm | ≤ 76.3mm | ± 0.25mm | |||||||||
| > 76.3mm | ≤ 89.1mm | + 0.30mm | - 0.40mm | ± 10% | |||||||
| > 89.1mm | ≤ 101.6mm | + 0.35mm | - 0.40mm | +10mm | |||||||
| > 101.6mm | ≤ 114.3mm | + 0.40mm | - 0.60mm | - 0mm | |||||||
| > 114.3mm | ≤ 139.8mm | + 0.40mm | - 0.80mm | ||||||||
| > 139.8mm | ≤ 165.2mm | + 0.40mm | - 1.20mm | ||||||||
| CNS 7383 JIS G3463 |
< 60mm | ± 0.25mm | OD ≤ 50mm | + 7mm | |||||||
| ≥ 60mm | < 80mm | ± 0.30mm | OD< 40mm t < 2mm | + 0.4mm | - 0mm | ||||||
| ≥ 80mm | < 100mm | ± 0.40mm | - 0mm | OD > 50mm | + 10mm | ||||||
| ≥ 100mm | < 120mm | + 0.40mm | - 0.60mm | OD< 40mm t ≥ 2mm | + 20% | - 0mm | |||||
| ≥ 120mm | < 160mm | + 0.40mm | - 0.80mm | - 0mm | |||||||
| ≥ 160mm | < 200mm | + 0.40mm | - 1.20mm | OD≥ 40 | + 22% | ||||||
| ≥ 200mm | + 0.40mm | - 1.60mm | - 0mm | ||||||||
Frequently Asked Questions (FAQ)
ASTM A213 is specifically for boilers, superheaters, and heat exchangers (seamless), with strict minimum wall thickness requirements. ASTM A269 is for general service tubing and is less rigorous regarding high-temperature properties. We primarily stock A213/A249 for heat exchangers.
TP stands for "Tube/Pipe". It is the designation used in ASTM standards (like A213, A312) to indicate that the stainless steel grade is intended for pressure piping or tubing applications (e.g., TP304), ensuring specific chemical and mechanical properties.