ASTM A179 Heat Exchanger Tubes are seamless low-carbon steel tubes designed for heat transfer applications such as heat exchangers, condensers, and boilers. These tubes provide efficient heat transfer, durability, and high resistance to pressure, making them a reliable choice in various industrial sectors.

Key Features of ASTM A179 Heat Exchanger Tubes

Seamless Construction: Made from low-carbon steel via a cold-drawing process, these tubes offer superior strength and heat conductivity.
High Heat Transfer Efficiency: Precision wall thickness and a smooth interior ensure optimal heat transfer performance.
Corrosion Resistance: Can be treated with protective coatings to resist corrosion in harsh environments.
Mechanical Strength: The seamless construction allows these tubes to withstand high pressures and temperatures in industrial applications.
Customizable Dimensions: Available in a wide range of sizes and thicknesses to meet specific design requirements.

Applications of ASTM A179 Heat Exchanger Tubes

Heat Exchangers: Primarily used in heat exchanger systems for efficient heat transfer in power plants, chemical industries, and refineries.
Condensers: Improve heat exchange between fluids in industrial condenser systems.
Boilers: Withstand high pressures and temperatures, making them suitable for boilers in power generation and industrial use.
Petrochemical and Chemical Industries: Widely used in refineries and chemical processing plants for efficient heat transfer.
Air Coolers: Enhance heat transfer between gases and liquids in air cooler systems.

Advantages of ASTM A179 Heat Exchanger Tubes

High Heat Transfer Efficiency: Seamless construction and low-carbon steel composition ensure superior heat transfer efficiency, improving system performance.
Durability and Strength: Can withstand extreme temperatures and pressures, ensuring reliability in industrial applications.
Corrosion Resistance: Treated with protective coatings to resist corrosion, extending their lifespan in various environments.
Cost-Effective: Provide a cost-effective solution for high-performance heat exchanger systems.
Versatility: Used across multiple industries, including power generation, petrochemical, and HVAC systems, thanks to their adaptability and performance.

Mechanical and Chemical Properties

Tensile Strength: Minimum 325 MPa (47,000 psi).
Yield Strength: Minimum 180 MPa (26,000 psi).
Elongation: Minimum elongation of 35% for cold-drawn tubes.
Chemical Composition: Maximum carbon content of 0.06%, manganese content of 0.27-0.63%.

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

Standard and the name of material: ASTM A179 / ASME SA 179 seamless tubes.
Manufacturing types in cold drawn
Size including Diameters and minimum wall thickness

Supplementary Technology: Plain or threaded with socket or beveled with plastic caps, hydraulic testing, eddy current, Infrared test.

Applications

Heat Exchangers: Transfers heat between two fluids without mixing.
Condensers: Condenses steam or vapor into liquid.
Boilers: Transfers heat from fuel combustion to water or steam.
Superheaters: Superheats steam produced in boilers.

Advantages

High Thermal Conductivity
Corrosion Resistance
Mechanical Strength
Precision Dimensions

Inspection and Testing

Chemical Analysis
Mechanical Testing: Tensile, yield strength, and elongation tests.
Hydrostatic Testing: Verifies pressure-holding capacity.
Non-Destructive Testing: Detects surface flaws and internal defects.

What is ASTM A179?

ASTM A179 is a standard specification for seamless cold-drawn low-carbon steel tubes used in tubular heat exchangers, condensers, and similar applications.

The ASTM A179 tubes are produced through a cold-drawing process, which helps to improve their dimensional accuracy and surface finish.

Scope of ASTM A179

ASTM A179 /ASME SA179 covers minimum-wall-thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.
ASTM A179 /ASME SA179 covers tubes 1/8 to 3 in. [3.2 to 76.2 mm], inclusive, in outside diameter. Note 1Tubing smaller in outside diameter and having a thinner wall than indicated in this specification is available. Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in outside diameter or with a wall thickness under 0.015 in. [0.4 mm].
The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.

ASTM A179 and its usage

ASTM A179 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

ASTM A179 Fin Tubes

ASTM A179 U bend tubes

What is ASTM A179 tube material?

ASTM A179 covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular, heat exchanger, condensers, and other heat transfer services. seamless ASTM A 179 steel tube is supplied and produced by cold drawning method. Chemical composition contains carbon, manganese, phosphorus, and sulfur.

Features of ASTM A179 tube material

ASTMA179/ASME SA179 standard is applicable for steel pipes together with outside diameter of 1/8in-3in. (32 mm to 76.2 mm). Our rolling technology has reached the international advanced spot. JST is able to manufacture cold drawn seamless steel tubes with uniform wall depth. Their tolerance is relatively smaller standard your own.

When seamless carbon steel pipes are during the last cold drawing procedure, they will enter micro oxidization and non-oxidation heat treatment furnace for thermal treatment (Temperature is 1200℉ (650℃) if not more.). This makes the surface of cold drawn seamless steel tubes match the no oxide scale standards, and guarantees smooth surface and stable performance.

JST adopts professional hardness testing equipment to find out the hardness of seamless carbon steel pipes. The Rockwell hardness value not able to exceed 72 HRB.

Top rated program customers' requirements, we can analyze the cold drawn seamless steel tube advertise its chemical composition meet standards. We choose one from 250 pipes or select one in a furnace to investigate. If the product analysis fails, then choose another two seamless carbon steel pipes. All elements of two steel pipes tend to be in accordance with standards, and then these pipes can be delivered.

Note:

Mill test certificates will be issued according to EN10204.3
All tubes shall be supplied as per applicable ASTM Specification.
The tubes Shall be Seamless and the testing shall be as per A 450 / A450M.

Size Specifications of ASTM A179 tube material

OD(mm)	Wall Thickness Unit(mm)
OD(mm)	2	2.5	3	3.5	4	4.5	5	6	6.5 - 7	7.5 - 8	8.5 - 9	9.5 - 10	11	12
Φ25-Φ28	●	●	●	●	●	●
Φ32		●	●	●	●	●	●
Φ34-Φ36		●	●	●	●	●	●
Φ38		●	●	●	●	●	●
Φ40			●	●	●	●	●
Φ42			●	●	●	●	●
Φ45			●	●	●	●	●	●
Φ48-Φ60			●	●	●	●	●	●	●
Φ63.5				●	●	●	●	●	●	●
Φ68-Φ73					●	●	●	●	●	●
Φ76					●	●	●	●	●	●	●	●	●	●
Φ80					●	●	●	●	●	●	●	●	●	●
Φ83					●	●	●	●	●	●	●	●	●	●
Φ89					●	●	●	●	●	●	●	●	●	●
Φ95					●	●	●	●	●	●	●	●	●	●
Φ102					●	●	●	●	●	●	●	●	●	●
Φ108					●	●	●	●	●	●	●	●	●	●
Φ114						●	●	●	●	●	●	●	●	●
Φ121						●	●	●	●	●	●	●	●	●
Φ127						●	●	●	●	●	●	●	●	●
Φ133						●	●	●	●	●	●	●	●	●
Φ140							●	●	●	●	●	●	●	●
Φ146							●	●	●	●	●	●	●	●
Φ152							●	●	●	●	●	●	●	●
Φ159							●	●	●	●	●	●	●	●
Φ168							●	●	●	●	●	●	●	●

Chemical Components (%) of ASTM A179 tube material

C	Si	Mn	P	S	Mo	Cr	V
0.06-0.18	/	0.27-0.63	≤0.035	≤0.035	/	/	/

Mechanical Properties of ASTM A179 tube material

Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation (%)	Hardness (HRB)
≥325	≥180	≥35	≤72

A450/A450M

ASTM A450 covers carbon and low alloy steel tube. Steel samples shall be melt processed and shall either be ingot cast or strand cast. Heat and product analyses shall be performed on the steel materials. Steel specimens shall also undergo tensile tests and shall conform to required values of yield strength and elongation. Flattening test, reverse flattening test, flaring test, flange test, hardness test, hydrostatic test, air underwater pressure test, and nondestructive tests shall be performed on the steel materials.

OD In (mm)	+	-	WT In(mm)	+	-
<1(25.4)	0.10	0.10	≤1.1/2(38.1)	20%	0
11.1/2(25.438.1)	0.15	0.15	>1.1/2(38.1)	22%	0
>1.1/2<2(38.150.8)	0.20	0.20
2<2.1/2(50.863.5)	0.25	0.25
2.1/2<3(63.576.2)	0.30	0.30
34(76.2101.6)	0.38	0.38
>47.1/2(101.6190.5)	0.38	0.64
>7.1/29(190.5228.6)	0.38	1.14

ASTM A179 Heat Exchanger Tubes