A179 Tube Manufacturer and Supplier in India
Fin Tubes is a recognized A179 Tube Manufacturer and Supplier in India, delivering seamless cold drawn carbon steel tubes for heat exchanger and condenser applications across process, marine and power sectors. Every batch of A179 tubes is drawn, annealed and tested under close quality supervision to ensure smooth bore surfaces and consistent wall thickness for dependable heat transfer performance.
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High-qualityRaw Material
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ExportWorldwide
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Overview of A179 Tube
ASTM A179 Tube is manufactured as per ASTM A179 and ASME SA179 standards, with a carbon content of 0.06 to 0.18 percent, manganese content of 0.27 to 0.63 percent, and phosphorus and sulfur each limited to 0.035 percent max. Unlike welded tube specifications, A179 tubes are produced without a seam, giving them uniform strength around the full circumference and a smooth internal surface favorable for fluid flow and heat transfer. These tubes are supplied in the annealed condition to provide good ductility for tube end expansion into tube sheets, and are often selected where seamless construction is preferred for critical cooling and condensing systems.
Technical Data
A179 Seamless Steel Tube Specification
| Parameter | Details |
|---|---|
| Product | ASTM A179 Seamless Steel Tubes |
| Specification | ASTM A179 / ASME SA179 |
| ASME Equivalent | ASME SA179 |
| Standard | ASTM A179/A179M, ASME SA179/SA179M, applicable to seamless cold drawn low carbon steel heat exchanger and condenser tubes |
| Size OD | 1/8" (3.2 mm) to 3" (76.2 mm). Standard warehouse range 3/4" to 3", sizes below 3/4" on request |
| Wall Thickness (BWG) | 16 BWG (1.651 mm), 14 BWG (2.108 mm), 12 BWG (2.769 mm), 10 BWG (3.404 mm), 8 BWG (4.191 mm) |
| Application | Tubular heat exchangers, condensers and similar heat transfer equipment |
| Length | 5800 mm, 6000 mm, 6096 mm, 7315 mm, 11800 mm and custom. Max length 27000 mm. U bend on request |
| Product Marking | ASTM A179 or ASME SA179, size, heat no, lot no, manufacturer name or logo |
| Other Testing | Hydrostatic Test, Flattening Test, Flaring Test, Eddy Current (NDT), per ASTM A450/A450M |
| Type | Seamless, Cold Drawn |
| Form | Round |
| International Standards | ASME, API, EN, DIN, ISO |
| End | Plain End, Beveled End, Coupling |
| Inspection | Third Party Inspection, Buyer Inspection |
| Packing | Weaving Bag, Seaworthy Bundles, Wooden Case if required |
| Certification | EN 10204 3.1 |
| Delivery Time | 1 to 2 days for stock material, 7 to 30 days for made to order material |
A179 Tube Chemical Composition
| C | Mn | P max | S max | Si max |
|---|---|---|---|---|
| 0.06 to 0.18 | 0.27 to 0.63 | 0.035 | 0.035 | 0.25 |
A179 Seamless Tube Mechanical Properties
| Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) |
|---|---|---|---|
| 325 min | 180 min | 35 min | 72 max |
A179 Wall Thickness Tolerance
| Outside Diameter, in (mm) | Over (+) % | Under (-) % |
|---|---|---|
| 1 1/2 (38.1) and under | 20 | 0 |
| Over 1 1/2 (38.1) | 22 | 0 |
A179 Tube OD Tolerance
| OD, in (mm) | Over (+) in (mm) | Under (-) in (mm) |
|---|---|---|
| Under 1 (25.4) | 0.004 (0.10) | 0.004 (0.10) |
| 1 to 1 1/2 (25.4 to 38.1), incl | 0.006 (0.15) | 0.006 (0.15) |
| Over 1 1/2 to 2 (38.1 to 50.8), excl | 0.008 (0.20) | 0.008 (0.20) |
| 2 to 2 1/2 (50.8 to 63.5), excl | 0.010 (0.25) | 0.010 (0.25) |
| 2 1/2 to 3 (63.5 to 76.2), excl | 0.012 (0.30) | 0.012 (0.30) |
A179 Tube Cut Length Tolerance
| Length Range | Over (+) | Under (-) |
|---|---|---|
| Up to 24 ft (7315 mm) | +1/8" (3.2 mm) | 0 |
| Over 24 ft (7315 mm) | +3/16" (4.8 mm) | 0 |
A179 Hydrostatic Test Pressures
| OD of Tube, in (mm) | Hydrostatic Test Pressure, psi (MPa) |
|---|---|
| Under 1 (25.4) | 1000 (7) |
| 1 to 1 1/2 (25.4 to 38.1), excl | 1500 (10) |
| 1 1/2 to 2 (38.1 to 50.8), excl | 2000 (14) |
| 2 to 3 (50.8 to 76.2), excl | 2500 (17) |
Applications
- Heat Exchangers
- Condensers
- Oil Coolers
- Air Conditioning Systems
- Refrigeration Equipment
- Process Cooling Systems
- Chemical Plant Equipment
- Power Plant Condensers
Power Generation Plants
Petrochemical Plants
Heat Exchangers
Air Preheaters
Industries We Serve
Boilers
Heat Exchangers
Power Plants
Frequently Asked Questions
Have more questions? Send an enquiry and we will respond within one working day.
A179 tubes are seamless, so they have no weld line, giving uniform strength around the tube and reducing the risk of weld related defects in critical heat exchanger service.
Minimum wall thickness means the specified wall value is the lowest allowable point around the tube, ensuring the tube never falls below the required thickness at any location.
Yes, A179 tubes are widely used in refrigeration and air conditioning heat exchangers due to their smooth bore, good heat transfer characteristics and reliable seamless construction.
A179 tubes are supplied in the cold drawn and annealed condition, which provides the ductility needed for tube end expansion and rolling into tube sheets during installation.
Because they lack a weld seam, A179 seamless tubes are often preferred for services where consistent pressure handling and structural reliability are a priority over welded alternatives.
Request a Quote for A179 Tube
Fin Tubes manufactures ASTM A179 seamless cold drawn carbon steel tubes in India for heat exchangers & condensers. Get a quote today.