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Carbon Steel Seamless Tube ASME SA179 Heat Exchanger Condenser
ASTM A179, identical with ASME SA-179, is the standard
specification covering minimum-wall-thickness cold-drawn low-carbon
steel tubes for tubular heat exchangers, condensers, and similar
heat transfer apparatus.
This specification cover tubes 1/8″ to 3″ [3.2 mm to 76.2 mm],
inclusive, in outside diameter. The ASTM A179 tubes shall be made
by the seamless process and shall be cold drawn; and they shall be
heat treated after the final cold draw pass at a temperature of
1200°F [650°C] or higher. These seamless tubes are usually called
as low-carbon steel tubes, heat exchanger tubes, boiler tubes, etc.
The steel materials will likewise experience hardness test,
straightening test, flaring test, rib test, and hydrostatic test.
Because of A179 grade’s temperature withstanding capabilities, it
is applied to steel pipe of tubular heat exchanger, condensers and
similar heat transfer equipment. Our ASTM A179 seamless tubes are
used in sugar mills & distilleries, pumps and petrochemicals,
cement and construction industries and steel plants.
ASTM A179 Chemical Composition
| Element | A/SA 179 |
| C | 0.06-0.18 |
| Mn | 0.27-0.63 |
| P | ≤0.035 max |
| S | ≤0.035 max |
ASTM A179 / ASME SA179 Tubes Equivalent Grades
| Grade | ASTM A179 / ASME SA179 | |
| UNS No | K01200 | |
| Old British | BS | CFS 320 |
| German | No | 1629 / 17175 |
| Number | 1.0309 / 1.0305 | |
| Belgian | 629 | |
| Japanese JIS | D3563 / G3461 | |
| French | A49-215 | |
| Italian | 5462 | |
ASTM A179 Material Properties
Carbon Steel SA179 Tubes are used widely due to its excellent
tensile strength and yield strength. The properties of the SA179
grade is highly unmatched, some of them are good corrosion
resistance, oxidation resistance, pitting resistance, resistance to
acid, crevice corrosion resistance and excellent strength.
| Element | A/SA 179 |
| Tensile Strength KSI (MPa) | 47 (325) |
| Yield Strength KSI (MPa) | 47 (325) |
| Elongation min. % | 35 |
The dimensional tolerances of ASTM A179,ASME SA179 Seamless 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] | |
Applications
-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
