ASTM A 178/A 178M Standard Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes
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ASTM A 178/A 178M Document Information:
Title
Standard Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes
ASTM International
Publication Date:
Sep 10, 2002
Scope:
This specification covers minimum-wall-thickness,
electric-resistance-welded tubes made of carbon
steel and carbon-manganese steel intended for use as boiler tubes,
boiler flues, superheater flues,
and safe ends.
NOTE 1 - Type C and D tubes are not suitable for safe-ending for forge
welding.
The tubing sizes and thicknesses usually furnished to this
specification are ½ to 5 in.
[12.7 to 127 mm] in outside diameter and 0.035 to 0.360 in. [0.9 to
9.1 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
⅛ in. [3.2 mm] in
inside diameter or 0.015 in. [0.4 mm] in thickness.
Optional supplementary requirements are provided and when desired,
shall be so stated in the order.
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.
Keywords:
- boiler tube
- resistance welded steel tube
- steel tube
- carbon
- welded steel tube
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