This standard is issued under the fixed designation A 135; the number immediately following the designation indicates
the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the
year of last reapproval. A superscript epsilon ( ュ) indicates an editorial change since the last revision or reapproval.

This specification has been approved for use by agencies of the Department of Defense. Consult the DoD Index of
Specifications and Standards for specific year of issue which has been adopted by the Department of Defense.

1.Scope

1.1 This specification covers two grades of electric-resistance-welded steel pipe in NPS 2 TO NPS 30 inclusive,
with nominal (average) wall thickness up to 0.500 in. ( 12.70 mm), inclusive, and in nominal sizes 3/4 to 5 in.
(19 to 127 mm) inclusive with nominal (average) wall thickness 0.083 in. (2.11 mm) to 0.314 in. (3.40 mm),
depending on size.Pipe having other dimensions 9Note 1) may be furnished provided such pipe complies with
all other requirements of this specification. The pipe in intended for conveying liquid, gas, or vapor; and only
Grade A is adapted for flanging and bending (Note 2). The suitability of pipe for various purposes in somewhat
dependent upon its dimensions, properties, and conditions of service, so that the purpose for which the pipe is
intended should be stated in the order. T he pipe may be furnished either nonexpanded or cold expanded,
the amount of expansion shall not exceed
1.5％ of the outside diameter pipe size.

NOTE 1Α A comprehensive listing of standardized pipe dimensions is contained in ANSI B36.10.
NOTE 2Α This provision is not intended to prohibit the cold bending of Grade B pipe.

1.2 The values stated in inch-pound units are to be regarded as the standard.

JIS Number and Corrensponding Foreign Standards