ASTM A269 Stainless Steel Heat Exchanger Tubes
Material：Stainless Steel
Surface Treatment：Polish, Sandblasting, Pickling
Shape：Round
Technicial：Cold Rolling/Drawing
Outside Diameter：3.18-810mm
Wall Thickness：0.2-40mm
Size：8"-72"(DN200-DN1800)/219.1mm-1829mm
Standard：ASTM A312, ASTM A213, ASTM A269, etc.
Transport Package：with Plastic Caps on Both End, Pack Into Bundle
What is ASTM A269 Stainless steel heat exchanger tubes ?
ASTM A269 is a standard developed by the American Society for Testing and Materials (ASTM) for seamless and welded austenitic stainless steel pipes, which are widely used in heat exchangers, condensers, evaporators and other fluid delivery systems with high requirements for corrosion resistance and cleanliness.
This standard requires pipes to have excellent surface quality, dimensional accuracy and corrosion resistance. Common materials include 304, 304L, 316, 316L, etc., which are suitable for the manufacture of heat exchange equipment in many industries such as chemical, pharmaceutical, food processing, and energy.
ASME SA 269 annealed tubes
Advantages of ASME SA269 SS heater tubes
🔹Efficient heat conduction: can quickly transfer heat, improve heat exchange efficiency, and reduce energy consumption.
🔹Excellent corrosion resistance: has strong corrosion resistance to acid, alkali, salt spray, water vapor, etc., extending the service life of the equipment.
🔹Flexible processing: supports a variety of processing methods such as cold bending and welding, and is suitable for complex structural designs.
ASTM A269 VS.A213, A312
ASTM A269: Strong versatility, covers seamless and welded pipes, suitable for general corrosion resistance and high and low temperature environments, commonly used in heat exchangers, chemical pipelines, etc.
ASTM A213: Mainly for seamless steel pipes for boilers and superheaters, with better high temperature performance, commonly used in power station equipment.
ASTM A312: Suitable for seamless and welded pipes in high pressure, high temperature or corrosive environments, such as the petrochemical field.
Why Choose GNEE
GNEE supplies ASTM A269 heat exchanger tubes that comply with ASTM A269 and ASME SA-269 standards, as well as ASME B31.3 process piping, GB/T 14976 (China) and other specifications, suitable for harsh industrial scenarios around the world (such as chemical pressure vessels, power plant condensers).
Material and specification options.
🔹Covering mainstream austenitic stainless steels such as 304/304L, 316/316L
🔹Can be flexibly matched according to the corrosiveness, temperature and pressure of the medium (such as 304 for conventional water systems, 316L for chemical environments containing chloride ions).
🔹Outer diameter 6.4-114.3mm, wall thickness 0.51-3.05mm, suitable for different heat exchange areas and pressure requirements (up to 20 MPa, specific wall thickness needs to be verified).
Specification of SA 269 condenser tubes
Standard & Material Grade
| Standard | Material Grade (ASTM A269) | Equivalent Grades | Key Alloying Elements |
|---|---|---|---|
| ASTM A269 / ASME SA-269 | 304 (UNS S30400), 304L (S30403) | EN 1.4306, GB 06Cr19Ni10 | 18-20% Cr, 8-10.5% Ni, ≤0.08% C (304L ≤0.03%) |
| 316 (S31600), 316L (S31603) | EN 1.4401, GB 06Cr17Ni12Mo2 | 16-18% Cr, 10-14% Ni, 2-3% Mo, ≤0.08% C (316L ≤0.03%) |
Dimensions & Tolerances
| Parameter | Range | Tolerances (ASTM A269) |
|---|---|---|
| Outer Diameter (OD) | 6.35 mm (0.25") to 219.08 mm (8.625") | ±0.5% of OD or ±0.3 mm (whichever is greater) |
| Wall Thickness (WT) | 0.51 mm (0.02") to 3.05 mm (0.12") (standard for heat exchangers) | ±10% of specified wall thickness |
| Length | 3 m to 12 m (customizable upon request) | +15 mm / -0 mm (for cut-to-length) |
| Straightness | – | ≤1.5 mm/m (deviation |
ASME SA 269 Seamless and Welded Tube Manufacturer
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