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A105
A182
A210
A213
A249
A268
A269
A270
A312
A403
A554
A778
A815
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A 210
Standard Specification for Seamless Medium-Carbon
Steel Boiler and Superheater Tubes
Overview
1.1 This specification covers minimum-wall-thickness,
seamless medium-carbon steel, boiler tubes and boiler flues, including
safe ends, arch and stay tubes, and superheater tubes.
1.2 The tubing sizes and thicknesses usually
furnished to this specification are 1/8 in. to 5 in. [12.7 mm to
127 mm] in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7
mm], inclusive, in minimum wall thickness. Tubing having other dimensions
may be furnished, provided such tubes comply with all other requirements
of this specification.
1.3 Mechanical property requirements do not apply to tubing
smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4
mm] in thickness.
1.4 When these products are to be used in applications
conforming to ISO Recommendations for Boiler Construction, the requirements
of Specification A 520, shall supplement and supersede the requirements
of this specification.
1.5 The values stated in either inch-pound units
or SI units are to be regarded separately as standard. (A combination
of values from the two systems may result in nonconformance with
the specification.) The inch-pound units shall apply unless the
"M" designation of the specification is specified in the order. |