A 192 boiler tubes description
A192 boiler tubes are mainly used in high-pressure boilers, including components such as heating surface tubes, headers, economizers, superheaters, and reheaters. Their working pressure usually does not exceed 9.8 MPa, and their working temperature ranges from 450℃ to 650℃.
ASTM A192 Chemical Composition
| Standard | Grade | ||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | ||
| ASTM A192 ASME SA192 |
A192 | 0.06-0.18 | ≤ 0.25 | 0.27-0.63 | ≤ 0.035 | ≤ 0.035 | / | / | / | / | / |
ASTM A192 Pipe Mechanical Properties
| Standard | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
| ASTM A192 Material ASTM SA192 Material |
≥325 | ≥180 | ≥35 |
Outside Diameter Tolerances of ASTM A192 Steel Pipe
|
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] |
Length Tolerances of ASTM A192 Steel Pipe
|
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] |
Test and inspection
Packaging and shipping
