This practice2 covers the standards and procedures
for the pulse-echo ultrasonic examination of heat-treated carbon,
low-alloy, and martensitic stainless steel castings.
This practice is to be used whenever the inquiry, contract,
order, or specification states that castings are to be subjected to
ultrasonic examination in accordance with Practice A609/A
This practice contains two procedures. Procedure A is the
original A609/A609M practice and requires calibration using a
series of test blocks containing flat bottomed holes. It also
provides supplementary requirements for angle beam testing.
Procedure B requires calibration using a back wall reflection from
a series of solid calibration blocks.
NOTE 1—Ultrasonic examination and radiography are not directly
comparable. This examination technique is intended to complement
Guide E94 in the detection of discontinuities.
Supplementary requirements of an optional nature are provided
for use at the option of the purchaser. The supplementary
requirements shall apply only when specified individually by the
purchaser in the purchase order or contract.
The values stated in either SI units or inch-pound units are to
be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall
be used independently of the other. Combining values from the two
systems may result in non-conformance with the standard.
Within the text, the SI units are shown in brackets.
This practice is expressed in both inch-pound units and SI
units; however, unless the purchase order or contract specifies the
applicable M specification designation (SI units), the inch-pound
units shall apply.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
2 For ASME Boiler and Pressure Vessel Code
applications, see related Specification SA-609 of Section II of
*A Summary of Changes section appears at the end of this
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