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ASTM A192/A192M 2002 Edition, September 10, 2002
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Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
Includes all amendments and changes through Reapproval Notice , 2012
Page Count:2
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This specification2 covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for highpressure service.

The tubing sizes and thicknesses usually furnished to this specification are ½ 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.

Mechanical property requirements do not apply to tubing smaller than 18 in. [3.2 mm] inside diameter or 0.015 in. [0.4 mm] thickness.

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 nonconformance with the specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.

2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-192 in Section II of that Code.