ASTM A179 ASME SA179 Tubes Heat-Exchanger and Condenser Tubes
We are the professional manufacturer and supplier of Heat Exchanger Steel Tube of ASTM / ASME / SA / A179.
ASTM A179/A179M is the standard specification for Seamless Cold-Drawn Low-Carbon Steel Heat Exchanger and Condenser Tubes.
ASME SA179 Heat-Exchanger Tubes
ASME SA179 is a specification under the ASME Boiler and Pressure Vessel Code (BPVC), covering seamless cold-drawn low-carbon steel tubes specifically designed for use in heat exchangers, condensers, and similar heat-transfer applications. These tubes are widely used in industries such as power generation, chemical processing, oil and gas, heat exchangers due to their excellent heat-transfer efficiency, corrosion resistance, and mechanical properties.
ASTM A179 tubes Size range：
1/8 to 3 in. [3.2 to 76.2 mm], inclusive, in outside diameter.
ASTM A179/ASTM A 179
ASTM A179 or ASME SA179 cold drawn seamless carbon steel tube is applicable to tubular heat exchanger, condenser different similar heat transfer equipment with the minimum wall thickness.
This type of cold drawn seamless steel tube is widely used in chemical engineering, carbon treatment, oil refining, nuclear electric power generation, aviation, and so forth. STM A179 or ASME SA179 seamless carbon steel pipe is also used for manufacturing boiler water cold wall, economizer, reheater and steam cylinder.
ASTM A179 tube Chemistry Composition:
|
C, %
|
Mn, %
|
P, %
|
S, %
|
|
0.06-0.18
|
0.27-0.63
|
0.035 max
|
0.035 max
|
ASTM A179 tube Mechanical Properties:
|
Tensile Strength, MPa
|
Yield Strength, MPa
|
Elongation, %
|
Hardness, HRB
|
|
325 min
|
180 min
|
35 min
|
72 max
|
ASTM A179 (ASME SA179) cold drawn steel tube.
Typical Sizes Normal Size OD. (In,mm): 3/4” (19.05mm);1” (25.4mm); 1¼” (31.75mm);1½” (38.1mm);2” (50.8mm);2½” (63.5mm);3” (76.2mm).
Wall Thickness (BWG, mm):16BWG (1.651mm);14BWG(2.108mm);12BWG(2.769mm);10BWG(3.404mm);8BWG(4.191mm)
Length(ft, mm):16ft(4877mm);20ft(6096mm);24ft(7315mm);Any other fixed length.
ASTM A179 tube/ASME SA179 Tube Wall Thickness Tolerance
| Seamless, Cold-Finished Tubes | ||
| Outside Diameter In. (mm) |
Wall thickness Tolerance % | |
| Over (+) | Under (-) | |
| 1 ½ (38.1) and under |
20 | 0 |
| Over 1½ (38.1) | 22 | 0 |
ASTM A179/ASME SA179 Tube Outside Diameter Tolerance
| Cold-Finished Seamless Tubes | ||
| Outside Diameter In. (mm) |
Permissible Variations In. (mm) | |
| Over (+) | Under (-) | |
| Under 1 (25.4) | 0.004 (0.1) | 0.004 (0.1) |
| 1 to 1 ½ (25.4 to 38.1), Incl | 0.006 (0.15) | 0.006 (0.15) |
| Over 11⁄2 to 2 [38.1 to 50.8], Excl | 0.008 (0.2) | 0.008 (0.2) |
| 2 to 21⁄2 [50.8 to 63.5], Excl | 0.010 (0.25) | 0.010 (0.25) |
| 21⁄2 to 3 [63.5 to 76.2], Excl | 0.012 (0.3) | 0.012 (0.3) |
ASTM A179/ASME SA179 Tube Cut Length Tolerance
| Cold-Finished Seamless Tubes | ||
| Outside Diameter, In.(mm) |
Cut Length ,in.(mm) | |
| Over(+) | Under(-) | |
| All Sizes | 3⁄16 [5] | 0 [0] |
| Under 2 [50.8] | 1⁄8 [3] | 0 [0] |
| 2 [50.8] and over | 3⁄16 [5] | 0 [0] |
| Under 2 [50.8] | 1⁄8 [3] | 0 [0] |
| 2 [50.8] and over | 3⁄16 [5] | 0 [0] |
| These permissible variations in length apply to tubes before bending. They apply to cut lengths up to and including 24 ft [7.3 m]. For lengths greater than 24 ft [7.3 m], the above over-tolerances shall be increased by 1⁄8 in. [3 mm] for each 10 ft [3 m] or fraction thereof over 24 ft or 1⁄2 in. [13 mm], whichever is the lesser. | ||
ASTM A179/ASME SA179 Tube Hydrostatic Test Pressures
| Hydrostatic Test Pressures | |
| Outside Diameter of Tube, in. [mm] | Hydrostatic Test Pressure, psi [Mpa] |
| Under 1 [25.4] | 1000 [7] |
| 1 to 11⁄2 [25.4 to 38.1], excl | 1500 [10] |
| 11⁄2 to 2 [38.1 to 50.8], excl | 2000 [14] |
| 2 to 3 [50.8 to 76.2], excl | 2500 [17] |
ASTM A179 / ASME SA179 is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
ASME SA179 Tube Test requirement
Hardness Test
Flattening Test
Flaring Test
Flange Test
Hydrostatic Test (Each tube shall be done this test or a substitute nondestructive electric test)
ASME SA179 Marking Specification
ASTM A179 / ASME SA179 tubes shall be marked according to standard of A450, with product name and order number.
ASME SA179 Tube Packing:
- Packed in wooden box or bundles protected with plastic paper, and suitably protected for sea-worthily delivery or as requested.
- The Product marking shall include the ASTM A179 or ASME SA179, size, heat no., Lot No. and Manufacture name or logo.
How to order our ASTM A179 Tubes?
ASTM A179 Seamless cold drawn Tube 3/4 Inch,16BWG, length 5200mm
ASME SA179 seamless heat-exchanger tubes are essential components for industries requiring reliable and efficient heat-transfer solutions. Their low-carbon composition, mechanical strength, and dimensional precision make them a versatile choice for applications ranging from power plants to chemical processing units.
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