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ASTM A179 / ASME SA179 Carbon Steel Seamless Tube Heat Exchanger Tube
ASTM A179 specification covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus. Tubes shall be made by the seamless process and shall be cold drawn. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur. The steel materials shall also undergo hardness test, flattening test, flaring test, flange test, and hydrostatic test.
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 / SA 179 Tubes Chemical Composition
| Element | Carbon | Manganese | Phosphorus | Sulfur |
| Grade | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.04 |
Material Mechanical Properties
| Yield Strength(MPa) | Tensil Strength(MPa) | Elogation(%) |
| ≥180 | ≥325 | ≥35 |
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.
