Cold-drawn ASTM A179 / ASME SA179 Carbon Steel Seamless Tube Heat Exchanger Tube
ASTM A179/ ASME SA179 tubes have good mechanical properties including high tensile strength and good ductility, a low carbon content which makes them suitable for bending, flaring, and other forming operations. It also makes them suitable for high-pressure and high-temperature applications, which are commonly used in industries such as oil and gas, chemical processing, power generation, and HVAC systems where efficient heat transfer is essential. A179 tubes have a smooth and clean surface finish, which is important for heat transfer applications. The tubes are usually coated with a light oil or phosphate coating to prevent oxidation and corrosion during transportation and storage.
Material specification requirements for a specific order
a. Standard and the name of material: ASTM A179 / ASME SA 179 seamless tubes.
b. Manufacturing types in cold drawn
c. Quantity in meters, feet, or pieces.
d. Size including Diameters and minimum wall thickness
e. Length per pieces (Random or fixed length shall be specified)
f. Chemical composition (optional)
ASTM A179 / ASME SA 179 CS Seamless Tubes Chemical Composition
| Element | Carbon | Manganese | Phosphorus | Sulfur |
| Grade | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.04 |
ASTM A179 / ASME SA 179 CS Seamless Tubes Material Mechanical Properties
| Yield Strength(MPa) | Tensil Strength(MPa) | Elogation(%) |
| ≥180 | ≥325 | ≥35 |
A179 tubes can be used in heat exchangers in two main forms: straight tubes and U-bend tubes.
Straight Tubes: Straight A179 tubes are the most common form used in heat exchangers. They are available in various lengths and can be easily installed in a straight configuration. Straight tubes are typically used in applications where the heat transfer requirements can be met with a simple layout. They are suitable for applications where the fluid flow is relatively straightforward and does not require complex tube routing.
U-Bend Tubes: U-bend A179 tubes are specifically designed for heat exchangers that require a compact and efficient design. These tubes are bent into a U-shape with precise dimensions and tight tolerances. The U-bend configuration allows for a more compact layout, reducing the space required for the heat exchanger. U-bend tubes are typically used in applications where space is limited or where the heat exchanger design demands a specific tube arrangement.
Tests
Hardness Test
Flattening Test
Flaring Test
Flange Test
Hydrostatic Test (Each tube shall be done this test or a substitute nondestructive electric test)
Marking Specification
ASTM A179 / ASME SA179 tubes shall be marked according to standard of A450, with product name and order number.
Applications
ASTM A179 seamless tubes are widely used in industries such as petroleum, chemical, medical, food, light industry, machinery, instrument, include industrial pipeline and mechanical structure parts, etc.
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry
- Off-Shore Oil Drilling Companies
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
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ASTM A179 / ASME SA179 Carbon Steel Seamless Tube Heat Exchanger Tube Images
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