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Stainless Steel Heat Exchanger Tubes
The heat exchanger tube is a device that transfers heat from a hot fluid to a cold fluid, also known as a heat exchanger, and is widely used in stainless steel grades 304, 304L, 316, and 316L. It is mainly used in petroleum, chemical boilers, metallurgical separation, power plants, ships, heating, refrigeration, air conditioning, machinery, food, pharmaceutical, and other fields.
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Stainless Steel Heat Exchanger Tubes: The Heart of Thermal Transfer
Stainless Steel Heat Exchanger Tubes are specialty-grade tubes manufactured specifically for use in thermal transfer equipment such as boilers, superheaters, condensers, and evaporators. This type of tubing must exhibit excellent resistance to pressure, high temperatures, and corrosion from fluids both inside and outside the tube. Therefore, it is produced under strict international standards like ASTM A249.
Key Applications of Heat Exchanger Tubes
- Power Generation: Used in boiler and condenser components.
- Oil Refining & Petrochemicals: Used in processes for heating and cooling various chemical agents.
- Food & Beverage Industry: Used in pasteurization, boiling, and cooling processes.
- HVAC & Refrigeration: Used in condenser and evaporator units.
- Pharmaceutical Industry: For applications requiring maximum hygiene and chemical resistance.
Specifications
SPEC: ASTM A249 / A269 / A270, JIS G3447 / G3463, CNS 6668 / 7383
Grade: 304, 304L, 316L
Thickness: 1.0mm - 3.0mm
Outside Diameter: 10mm - 101.6mm (3/8" - 4")
Length: 6 Meters (Standard)
| 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 | ||||||||
| 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 | ||||||||