ASTM A192 Pipe
ASTM A192/ASME SA192 is the standard specification for seamless carbon steel boiler tubes for high-pressure service.
ASTM A192 Seamless Steel Tube is applied as minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service
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Size Range
OD 12.7-177.8mm
WT 1.79mm-25.4 mm
Chemical And Mechanical Properties
Material |
C |
Si |
Mn |
P |
S |
% |
max% |
% |
max% |
Max% |
|
A192/SA192 |
0.06---0.18 |
0.25 |
0.27---0.63 |
0.035 |
0.035 |
Mechanical Property |
|
Tensile strength ksi(MPa) | 47(325) |
Yield strength ksi(MPa) | 26(180) |
Brinell Hardness Number (Tubes 0.200 in. [5.1 mm] and over in wall thickness) | 137HB |
Rockwell hardness number(Tubes less than 0.200in [5.1 mm] in wall thickness | 77HRB |
Outside |
Wall Thickness, % |
|||||||
0.095[2.4] and Under |
Over 0.095 to 0.150 |
Over 0.150 to 0.180 |
Over 0.180,[4.6] |
|||||
Over |
Under |
Over |
Under |
Over |
Under |
Over |
Under |
|
Seamless, Hot-Finished Tubes |
||||||||
4 [101.6] and under |
40 |
0 |
35 |
0 |
33 |
0 |
28 |
0 |
Over4[101.6] |
.... |
.... |
35 |
0 |
33 |
0 |
28 |
0 |
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 |
|
Hot-Finished Seamless Tubes |
||
4 [101.6] and under |
1 ⁄ 64 [0.4] |
1 ⁄ 32 [0.8] |
Over 4 to 7 1 ⁄ 2 [101.6 to 190.5], incl |
1 ⁄ 64 [0.4] |
3 ⁄ 64 [1.2] |
Over 7 1 ⁄ 2 to 9 [190.5 to 228.6], incl |
1 ⁄ 64 [0.4] |
1 ⁄ 16 [1.6] |
Cold-Finished Seamless Tubes |
||
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 |
Outside |
Cut Length,in. [mm] |
|
Over |
Under |
||
Seamless, hot-finished |
All sizes |
3 ⁄ 16 [5] |
0 [0] |
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] |
ASTM A192, ASME SA192 Seamless Tube Specification
OD (mm) | Wall Thickness(mm) | |||||||||||||
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 | |
Φ25-Φ28 | ● | ● | ● | ● | ● | ● | ||||||||
Φ32 | ● | ● | ● | ● | ● | ● | ||||||||
Φ34-Φ36 | ● | ● | ● | ● | ● | ● | ||||||||
Φ38 | ● | ● | ● | ● | ● | ● | ||||||||
Φ40 | ● | ● | ● | ● | ● | |||||||||
Φ42 | ● | ● | ● | ● | ● | |||||||||
Φ45 | ● | ● | ● | ● | ● | ● | ||||||||
Φ48-Φ60 | ● | ● | ● | ● | ● | ● | ● | |||||||
Φ63.5 | ● | ● | ● | ● | ● | ● | ● | |||||||
Φ68-Φ73 | ● | ● | ● | ● | ● | ● | ||||||||
Φ76 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
Φ80 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
Φ83 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
Φ89 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
Φ95 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
Φ102 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
Φ108 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
Φ114 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
Φ121 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
Φ127 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
Φ133 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
Φ140 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
Φ146 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
Φ152 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
Φ159 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
Φ168 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
Φ177 | ● | ● | ● | ● | ● | ● | ● |