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Standard
ASTM A192/A192M
ASTM A192/A192M specifications covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high pressure service.
The ASTM A192 belongs to the carbon seamless tubes, which is specially designed for high, middle, low pressure purpose in seamless carbon steel boilers and as super heater tubes.
Specification:
Size (mm): O.D.:6.0-168.0 W.T.:1-15 L:max 12000
OD(mm) |
Wall Thickness Unit(mm) |
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2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
6 |
6.5-7 |
7.5-8 |
8.5-9 |
9.5-10 |
11 |
12 |
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Φ25-Φ28 |
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Φ32 |
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Φ34-Φ36 |
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Φ38 |
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Φ40 |
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Φ42 |
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Φ45 |
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Φ48-Φ60 |
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Φ63.5 |
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Φ68-Φ73 |
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Φ76 |
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Φ80 |
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Φ83 |
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Φ89 |
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Φ95 |
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Φ102 |
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Φ108 |
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Φ114 |
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Φ121 |
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Φ127 |
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Φ133 |
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Φ140 |
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Φ146 |
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Φ152 |
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Φ159 |
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Φ168 |
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ASTM A192 / ASME SA192 Tube Outside Diameter Tolerance
Cold-Finished Seamless Tubes |
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Outside Diameter In. (mm) |
Permissible Variations In. (mm) |
|
Over (+) |
Under (-) |
|
Under 1 (25.4) |
0.004 (0.10) |
0.004 (0.10) |
1 to 1 ½ (25.4 to 38.1), Incl |
0.006 (0.15) |
0.006 (0.15) |
Over 11⁄2 to 2 (38.1 to 50.8), Excl |
0.008 (0.20) |
0.008 (0.20) |
2 to 21⁄2 (50.8 to 63.5), Excl |
0.010 (0.25) |
0.010 (0.25) |
21⁄2 to 3 (63.5 to 76.2), Excl |
0.012 (0.30) |
0.012 (0.30) |
Cut Length Tolerance
Cold-Finished Seamless Tubes |
||
Outside Diameter, |
Cut Length, in.(mm) |
|
Over (+) |
Under (-) |
|
All Sizes |
3⁄16 [5] |
0 [0] |
Under 2 (50.8) |
1⁄8 [3] |
0 [0] |
2 (50.8) and over |
3⁄16 [5] |
0 [0] |
Under 2 (50.8) |
1⁄8 [3] |
0 [0] |