ASTM A214 ERW Heat-Exchanger and Condenser Tube
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What is ASTM A214?
A214/A214M Standard Specification for Electric-Resistance-Welded Carbon Steel Heat-Exchanger and Condenser Tubes.
This specification covers minimum wall thickness resistance welded carbon steel pipe for use in heat exchangers, condensers, and similar heat transfer equipment. Pipe sizes normally supplied in accordance with this specification are 3 inches [76.2 mm] outside diameter inclusive. Pipes of other sizes may be supplied provided that such pipes comply with all other requirements of this specification.
Mechanical property requirements do not apply to pipe with an inside diameter less than 1/8 in. [3.2 mm] or a thickness less than 0.015 in. [0.4 mm].
The purchaser shall indicate the outside diameter and minimum wall thickness on the order. The inner diameter should not be specified.
What is the material of SA 214 steel pipe?
ASTM A214 is the specification for minimum-wall electric-resistance-welded (ERW) carbon steel tubing designed for heat exchangers, condensers, and other heat transfer equipment. These tubings are manufactured to ensure efficient heat transfer and are commonly used in applications such as coolers and heaters, where dimensional accuracy, high load durability, and heat resistance are crucial. In these applications, their resistance to stress corrosion cracking and high toughness are crucial.

ASTM A214 Boiler Tubes Chemical Composition
| Element | A/SA 214 |
| C | 0.18 max. |
| Mn | 0.27 - 0.63 |
| P | 0.035 max |
| S | 0.035 max |
aSTM A214 Carbon Steel Boiler Tubing Mechanical Properties
| Element | A/SA 214 |
| Tensile Strength KSI (MPa) | 47[325] |
| Yield Strength KSI (MPa) | 26[180] |
| Elongation min. % | ≥35% |
| Hardness | ≤72 HRB |
Quality Standard: ASTM A214 "Standard Specification for Electric Resistance-Welded Carbon Steel Heat Exchanger and Condenser Tubes"
Size Range: 1/2" - 3" OD
Delivery Condition: Annealed, annealed, heat treated, stress relieved, normalized, spheroidized, annealed, bright annealed, normalized, etc.
Surface Treatment: A214/A450 temporary coating, special coating, galvanized, oil-impregnated, painted, passivated, phosphated, etc.; or black oil-impregnated varnish with two plastic caps on each end.
Inspection: Strictly in accordance with standard requirements, with original MTC certificate (EN10204.3.1/3.1B) provided.
Applications: Boilers and heat exchangers (boiler panels, economizers, reheaters, superheaters, and steam piping), hydraulic and petrochemical applications, etc.
What is the difference between SA 179 and SA-214?
SA-214 and SA-179 are both types of carbon steel tubes that are commonly used in heat exchangers and boilers, but they have different characteristics and properties.
SA-214 tubes are medium-carbon steel tubes with a minimum wall thickness of 0.028 inches. They are heat-treated after welding to improve their toughness and ductility, and they are often used in high-pressure applications where their resistance to stress corrosion cracking is important.
SA-179 tubes, on the other hand, are low-carbon steel tubes with a minimum wall thickness of 0.035 inches. They are generally used in low-pressure applications, such as in condensers, evaporators, and heat exchangers. They are known for their excellent heat transfer properties and their ability to resist corrosion.
Gnee Steel Pipe Co., Ltd. is an industrial and trading company. We mainly produce and operate carbon steel pipes and alloy steel pipes. Our pipes include liquid delivery pipes, structural pipes, hydraulic strut pipes, boiler pipes and bearing pipes. We typically have over 5,000 tons of pipe in various sizes and standards.









