ASTM A179 ASME SA179 Seamless Heat-Exchanger Tubes

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ASTM A179,ASME SA179 steel tubes covers minimum-wall-thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.

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ASTM A179,ASME SA179 Seamless cold-drawn Heat-Exchanger and Condenser Tubes
 
ASTM A179,ASME SA179 steel tubes 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.
 

ASTM A179,ASME SA179 Seamless Heat-Exchanger and Condenser Tubes Quick Details
Manufacture:Seamless process ,cold drawn.
Wall thickness(WT): 2.0 mm——12.7 mm.
Outer diameter (OD): 12.7mm——76.2 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded
 
Additional Info
Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
 

ASTM A179,ASME SA179 Seamless Tube Specification:

OD (mm) Wall Thickness(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         ● ● ● ● ● ● ● ● ● ●


Manufacture
ASTM A179,ASME SA179 steel tubes are made by the seamless process and shall be cold drawn.
 

Heat Treatment of ASTM A179,ASME SA179
ASTM A179,ASME SA179 steel tubes are heat treated after the final cold draw pass at a temperature of 1200°F [650°C] or higher.


Chemical Composition of ASTM A179,ASME SA179 Seamless Heat-Exchanger and Condenser Tubes
Material Chemical Composition(%)
C Si Mn P S
ASTM A179 0.06-0.18 ≤ 0.25 0.27-0.63 ≤0.035 ≤0.035
 

Mechanical Propertie of ASTM A179,ASME SA179 Seamless Heat-Exchanger and Condenser Tubes
Grade ASTM A179
Tensile Strength(MPa) ≥325
Yield Strength(MPa) ≥180
Elongation,% ≥35
Hardness, HRB ≤72
Note —Tubing 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 dimensional tolerances of ASTM A179,ASME SA179 Seamless Heat-Exchanger and Condenser Tubes 
 
Tolerances of  Wall Thickness
Outside
Diameter,
in. [mm]		 Wall Thickness, %
0.095[2.4] and Under Over 0.095 to 0.150
[2.4 to 3.8], incl		 Over 0.150 to 0.180
[3.8 to 4.6], incl		 Over 0.180,[4.6]
Over Under Over Under Over Under Over Under
Seamless, Cold-Finished Tubes
  Over Under
1 1 ⁄ 2 [38.1] and under 20 0
Over 1 1 ⁄ 2 [38.1] 22 0
 
Tolerances of  Outside Diameter
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 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 [0.2] 0.008 [0.2]
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 [0.3] 0.012 [0.3]
3 to 4 [76.2 to 101.6], incl 0.015 [0.38] 0.015 [0.38]
Over 4 to 7 1 ⁄ 2 [101.6 to 190.5], incl 0.015 [0.38] 0.025 [0.64]
Over 7 1 ⁄ 2 to 9 [190.5 to 228.6], incl 0.015 [0.38] 0.045 [1.14]
 
Tolerances of Length
Method of
Manufacture		 Outside
Diameter,
in. [mm]		 Cut Length,in. [mm]
Over Under
Seamless, cold-finished Under 2 [50.8] 1 ⁄ 8 [3] 0 [0]
2 [50.8] and over 3 ⁄ 16 [5] 0 [0]
2 [50.8] and over 3 ⁄ 16 [5] 0 [0]
 

Mechanical Tests Required
(1)Flattening Test—One flattening test shall be made on specimens from each of two tubes from each lot or fraction thereof.
(2)Flaring Test—One flaring test shall be made on speci- mens from each of two tubes from each lot  or fraction thereof.
(3) Flange Test—When specified as a substitute for the flaring test, for tubes having a wall thickness (actual mean wall) less than 10 % of the outside diameter, one test shall be made on specimens from each of two tubes
(4)Hardness Test—Rockwell hardness tests shall be made on specimens from two tubes from each lot.
(5) Hydrostatic Test—Each tube shall be subjected to the hydrostatic test, or a nondestructive electric test
 

Surface Condition
Finished tubes shall be free of scale. A slight amount of oxidation will not be considered as scale.
 

Product Marking
In addition to the marking prescribed in Specification A450/A450M, the marking shall include the name and order number of the purchaser.
Note: Material furnished under ASTM A179,ASME SA179 conform to the applicable requirements of the current edition of Specification A450/A450M


Photos of ASTM A179,ASME SA179 Seamless Heat-Exchanger and Condenser Tubes
 




Application:
ASTM A179,ASME SA179 seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.


Ordering Information
Orders for material includes the following, as required, to describe the desired material adequately:
(1) Quantity (feet, metres, or number of lengths),
(2) Name of material (seamless tubes),
(3) Manufacture (cold-drawn),
(4) Size (outside diameter and minimum wall thickness),
(5) Length (specific or random),
(6) Test report required (Certification Section of Specifi- cation A450/A450M),
(7) Specification number, and
(8) Special requirements.
 
 

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