ASTM A192 covers minimum-wall-thickness, seamless carbon steel boiler, and superheater tubes for high-pressure service.
The tubing 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. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in non-conformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
Outside Diameter: 12.7-177.8mm
Wall Thickness: 2.2-25.4mm
Length: 6-32m
Type: Straight Tube, U-Bend Tube
ASTM A192 High-Pressure Carbon Steel Boiler Tube Chemical Composition:
|
Grade |
Chemical composition(%) |
|||||
|
C |
Type |
C |
Si |
Mn |
P | S |
|
ASTM A192 |
S=Seamless |
0.06~0.18 |
0.25Max |
0.27~0.63 |
0.035Max |
0.035Max |
A192 Boiler Tube Mechanical Property:
|
Grade |
Elongation % |
Tensile Test MPa or N/mm2 |
|
|
A |
Min Yield Strength |
Tensile Strength | |
|
ASTM A192 |
=35 |
=180 |
=325 |
ASTM A192 steel tube for Boiler Hardness Requirement:
|
Brinell Hardness Number |
Rockwell Hardness Number |
|
(Tubes 0.200 in. [5.1 mm] and over in wall thickness) |
(Tubes less than 0.200 in. [5.1 mm] in wall thickness) |
|
137 HB |
77 HRB |
A192 Boiler Tubes - SA192 Boilers And Pressure Vessel Tubes - Boilers And Pressure Vessels - Carbon Steel - High-Temperature Service Applications - High-Temperature Services - Pressure Vessels - Seamless Pipes And Tubes - A192 Seamless Steel Tubes - ASME SA192 Steel Tubes - ASME SA192 Superheater Tubes - Superheaters - Tubular Products.
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