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ASTM A192,ASME SA192 High-Pressure Seamless Boiler And Superheater Tubes
ASTM A192,ASME SA192 Steel Tubes covers minimum-wall-thickness,seamless carbon steel boiler and superheater tubes for high-pressure service.
ASTM A192,ASME SA192 High-Pressure Seamless Carbon Steel Boiler And Superheater Tubes sizes and thicknesses usually furnished to this specification are 1 ⁄ 2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness.
ASTM A192,ASME SA192 High-Pressure Seamless Boiler Tubes Quick Details
Manufacture:Seamless process ,Hot-finished or Cold-finished
Wall thickness(WT): 3.2mm——25.4 mm.
Outer diameter (OD): 12.7mm——177.8 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded
Manufacture
ASTM A192,ASME SA192 High-Pressure Seamless Boiler And Superheater Tubes are made by the seamless process and shall be either hot-finished or cold-finished, as specified.
Marking
The marking indicate whether the tube is hot finished or cold finished.
Heat Treatment
Hot-finished tubes need not be heat treated. Cold-finished tubes shall be heat treated after the final cold-finishing at a temperature of 1200°F [650°C] or higher.
Chemical Composition of ASTM A192,ASME SA192 Boiler And Superheater Tubes
Carbon, % | 0.06–0.18 |
Manganese, % | 0.27–0.63 |
Phosphorus, max, % | 0.035 |
Sulfur, max, % | 0.035 |
Silicon, max, % | 0.25 |
Tensile strength, min, ksi [MPa] | 47 [325] |
Yield strength, min, ksi [MPa] | 26 [180] |
Elongation in 2 in. or 50 mm, min, % | 35 |
Brinell Hardness Number (Tubes 0.200 in. [5.1 mm] and over in wall thickness) | 137 HBW |
Rockwell Hardness Number (Tubes less than 0.200 in.[5.1 mm] in wall thickness) | 77 HRBW |
Outside Diameter, in. [mm] |
Wall Thickness, % | |||||||
0.095[2.4] and Under |
Over 0.095 to 0.150 [2.4 to 3.8], incl |
Over 0.150 to 0.180 [3.8 to 4.6], incl |
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 |
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] |
Method of Manufacture |
Outside Diameter, in. [mm] |
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] |
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 | ● | ● | ● | ● | ● | ● | ● |