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ASTM A179 Heat-Exchanger And Condenser Tubes

ASTM A179 heat exchanger tubes A 179 Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes This specification covers minimum-wall-thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus. This specification covers tubes 1/8 to 3 in. [3.2 to 76.2 mm], inclusive, in outside diameter.
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  • Heat Exchanger Tube

  • Tenjan

  • Heat Exchanger Tube

seamless steel tube

ASTM A179/A179M, ASME SA179/SA179M is the standard applicable to Seamless cold drawn low carbon steel heat exchanger and condenser tubes.

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 Chemistry Composition:
C, %
Mn, %
P, %
S, %
0.06-0.18
0.27-0.63
0.035 max
0.035 max
Other carbon and alloy steel can be made. 
ASTM A179 Mechanical Properties:
Tensile Strength, MPa
Yield Strength, MPa
Elongation, %
Hardness, HRB
325 min
180 min
35 min
72 max


ASTM A179/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		200
Over 1½ (38.1)220

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), Incl0.006 (0.15)0.006 (0.15)
Over 11⁄2 to 2 [38.1 to 50.8], Excl0.008 (0.2)0.008 (0.2)
2 to 21⁄2 [50.8 to 63.5], Excl0.010 (0.25)0.010 (0.25)
21⁄2 to 3 [63.5 to 76.2], Excl0.012 (0.3)0.012 (0.3)


Cold drawn heat exchangers tubes with average wall thickness (sizes in inches)

Average wall thickness
diameterBWG (inch)14 (.083)13 (.095)12 (.109)11 (.120)10 (.134)9 (.148)8 (.165)7 (.180)6 (.203)5 (.220)
[mm][inch][mm]2,112,412,773,053,403,764,194,575,165,59
12,701/2lb/ft0.3690.410.4450.4870.5230.557



0.5kg/m0,5510,6120,6780,7260,7800,829



15,885/8lb/ft0.480.5370.60.6470.7030.754



0.625kg/m0,7160,8010,8970,9651,0461,124



19,053/4lb/ft0.5910.6640.7450.8070.8810.952



0.75kg/m0,8810,9891,1101,2031,3121,418



22,237/8lb/ft0.7020.7910.8910.9671.06




0.875kg/m1,0451,1771,3261,4391,577




25,401lb/ft0.8120.9181.0371.1281.2391.3461.4711.575

1kg/m1,2121,3661,5501,6811,8452,0062,1922,347

31,751 1/4lb/ft1.0341.1721.3281.4481.5971.7411.9122.0562.2722.417
1.25kg/m1,5421,7441,9802,1592,3772,5952,8483,0633,3833,606
38,101 1/2lb/ft1.2561.4261.6191.7691.9552.1372.3532.5372.8143.009
1.5kg/m1,8702,1212,4132,6362,9093,1843,5043,7794,1914,481
50,802lb/ft1.6991.9332.2012.4092.672.9293.2463.4993.8964.185
2kg/m2,5332,8763,2813,5913,9744,3624,8165,2105,8076,232
63,502 1/2lb/ft2.1432.442.7833.053.3853.7174.1264.464.985.36
2.5kg/m3,1943,6314,1484,5475,0395,5396,1286,6417,4247,983
76,203lb/ft2.5862.9473.3653.6914.1024.5085.0065.4216.0646.536
3kg/m3,8554,3855,0165,5026,1046,7177,4408,0729,0409,734




Our Certificate：

ISO9001 IATF16949
ISO 9001  IATF 16949


                                                                                                 

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Every batch of products can be traced and guaranteed by the raw material certificate and steel tube quality certificate. Complete quality control system, following ISO9001, to ensure a full inspection process such as pull force test, chemical composition test and eddy current detection.

 

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The chairman of Tenjan, Mr. Wensheng Gu, is one of the major constitutors of national standard Couplers for Rebar Mechanical Splicing JG/T 163-2013. And Tenjan has won the Quality System Certificates of ISO9001 and IATF16949.

 

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