ASTM A179/ ASME SA179 Heat Exchanger Tubes

ASME SA179 or ASTM A179 tubes is a type of seamless pipe material in carbon, with small wall thickness and diameters. (Most is required below 3 inches.)

What is ASME SA 179 (ASTM A179) Standard Specification

ASTM A179 (SA 179) standard specification covers seamless cold drawn low-carbon steel pipe, for tubular heat exchanger, condensers, and other similar heat transfer equipment.

The ASTM A179 tube covers the OD from 1/8” to 3”, which is 3.2m m to 76.2 mm. Other diameters and thicknesses smaller than the specified sizes also apply to this standard, but mechanical properties are not applicable for the size smaller than 1/8” and 3.2 mm, or thicknesses smaller than 0.015 inches 0.4 mm.

Referred standards for manufacturing SA 179 tubes

Related ASTM standards is ASTM A450/A 450M The standard specification for the general requirements for carbon steel, ferritic alloy, and austenitic alloy steel tubes.

Material specification requirements for a specific order

When we place a specific order for SA 179 tubing, we should include below material specifications:

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 piece (Random or fixed length shall be specified)
f. Chemical composition (optional)

ASTM A179 / SA 179 tubes chemical composition

The chemical contents is C (Carbon) 0.06-0.18%, Mn (Manganese) 0.27-0.63%, P (Phosphorus) Max 0.035%, S (Sulfur) ≤ 0.035%. Moreover, in case supplied as an alloy grade that above specifications will not be applied.

Material Mechanical properties

The mechanical strength for ASTM A179 is min tensile strength 47 Ksi 325 Mpa, and min yield strength 26 Ksi 180 Mpa, elongation in 2 in or 50mm min at 35%.

Test methods referred

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.

Octal have ASTM A179 / SA179 Tubing for sale

Supply Range as following:
Standard: ASTM A179 / ASME SA179 in cold drawn and low carbon seamless tubing
Outer Diameter available: 1/8” to 3”, which 3.2mm to 76.2mm
Wall Thickness available: 0.5mm to 14mm
Length: 10ft, 20ft, 40ft or customized length.

Keywords

Cold drawn tube
Condenser tubes
Heat exchanger tubes
Low carbon steel
Seamless tube

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