We use cookies to offer a better browsing experience, analyze site traffic, and personalize content. By using this site, you agree to our use of cookies.
we have obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc.
we have obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc.
The standard specification covering minimum-wall-thickness cold-drawn low-carbon steel tubes for tubular heat exchange, 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 exchange tubes, boiler tubes, etc.
Specification
Size Range：OD:1/4" (6.25mm) to 8" (203mm), WT 0.02" (0.5mm) to 0.5"(12mm)
Outer Diameter：10 MM – 38.1 MM
Wall Thickness：1 MM – 10 MM
Length：3000 MM – 16000 MM,Single Random, Double Random & Required Length, Custom Size – 12m lengths
Ends:Plain end or beveled end, square cut, burr free ,Plastic Cap at Both end
Process:Cold drawn, Cold rolled, Hot Rolled
Wall Thickness Tolerance：
|
Seamless Cold-Finished Tubes |
||
|
Outside Diameter |
Wall thickness Tolerance % |
|
|
Over (+) |
Under (-) |
|
|
1 ½ (38.1) and under |
20 |
0 |
|
Over 1½ (38.1) |
22 |
0 |
Chemical Composition
|
Element |
Weight Percent |
|
C |
0.06~0.18 |
|
Mn |
0.27~0.63 |
|
P |
≤0.035 |
|
S |
≤0.035 |
*All values shall be based on heat analysis.
Mechanical Properties
|
T.S. min. |
47 [325] |
|
Y.S. min. |
26 [180] |
|
El. in 2" |
35 |
|
Hardness, |
72 |
English
Español
