
ASTM A179 Cold Drawn Seamless Steel Tube
Description
ASTM A179 Cold drawn seamless steel tube for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes.
ASTM A179 covers tubes 1/8 to 3 in. [3.2 to 76.2 mm], inclusive, in outside diameter.
Delivery: 7-15 days after payment
Type of End-Finish:PE
ASTM A179 Cold Drawn Seamless Tube Dimensional Range & Specification
Length:6000mm、12000m or specified length as required.
Manufacture
Tubes shall be made by the seamless process and shall be cold drawn.
Heat Treatment
Tubes shall be heat treated after the final cold draw pass at a temperature of 1200°F [650°C] or higher.
Surface Condition
Finished tubes shall be free of scale.Tubes will be varnished (Outside only) to prevent rust.
Grade | 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
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].
Tolerance Of ASTM A179 Cold Drawn Seamless Tube
Outside Diameter, Tolerance
Outside Diameter, mm | Tolerance, mm | ||||
3.2≤OD<25.4 | ±0.10 | ||||
25.4≤OD≤38.1 | ±0.15 | ||||
38.1<OD<50.8 | ±0.20 | ||||
50.8≤OD<63.5 | ±0.25 | ||||
63.5≤OD<76.2 | ±0.30 | ||||
76.2 | ±0.38 |
Wall thickness,Tolerance
Outside Diamter, mm | Tolerance, % | ||||
3.2≤OD<38.1 | +20/-0 | ||||
38.1≤OD≤76.2 | +22/-0 |
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