1.1 This specification covers minimum-wall-thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.
1.2 This specification covers tubes 1/8 to 3 in. [3.2 to 76.2 mm], inclusive, in outside diameter.
1)Dimension:
OD3.2-76.2mm(1/8in-3in)
2)Standard:
ASTM A179
3)Technique:
Seamless and cold drawn
4)Surface treatment:
Varnish or black painted
5)Application:
Heat-exchanger and Condenser Tubes
6)Type of Package:
Bundled and Packed in Seaworthy Bags, Plain Ends
7)Inspection :
EN 10204/3.1 or EN 10204/3.2 Mill Test Certificate, SGS, BV
8)Chemical Composition
|
C |
Mn |
P Max |
S Max |
Si Max |
|
0.06-0.18 |
0.27-0.63 |
0.035 |
0.035 |
0.25 |
9)Mechanical Property:
|
Tensile strength Ksi (Mpa) |
Min 47(325) |
|
Yield strength Ksi (Mpa) |
Min 26(180) |
|
Elongation(50mm)% |
Min 35 |
|
Hardness |
72HRB |
10)Manufacturing Process:
Seamless and cold-drawing
11)Heat treatment:
The tube shall be heat treated after the final cold draw pass at a temperature of 1200°F or higher.
12)Surface Condition:
Finished tubes shall be free of scale,A slight amount of oxidation will not be considered as scale.
13)Mechanical Tests Required:
Flattening Test
Flaring test
Flange test
Hardness test
Hydrostatic test
ASME SA179 Cold Drawing Tubes - ASTM A179 Condenser Tubes - SA179 Heat Exchanger Tubes - ASME SA179 Seamless Pipes And Tubes - A179 Seamless Steel Tubes - SA179 Steel Tubes
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