- No.101 Wanbo 1st Road, Nancun Town, Panyu District, Guangzhou, Guangdong, China
- 0086-020-84886013,84886093,84886091,84886012
- sales@finegosteel.com
Standard
ASME SA179/SA179M
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 |