ASTM-A939 2012

$35.75

A939/A939M-12 Standard Practice for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings

Published By	Publication Date	Number of Pages
ASTM	2012	3

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Categories: 77.140.85 - Iron and steel forgings, ASTM

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Description

ASTM A939/A939M-12

Historical Standard: Standard Practice for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings

ASTM A939/A939M

Scope

1.1 This practice covers a basic procedure of ultrasonically inspecting cylindrical forgings with bores from the bore surface.

1.2 This practice applies to the manual testing mode. It does not restrict the use of other testing modes, such as mechanized or automated.

1.3 This practice applies to cylindrical forgings having bore sizes equal to or greater than 2.5 in. [64 mm].

1.4 This practice is expressed in inch-pound and SI units; however, the inch-pound units shall apply unless the purchase order or contract specifies the applicable “M” specification designation (SI units). 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.

1.5 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.

Keywords

bore inspection; bored turbine rotor; forgings; ultrasonic examination

ICS Code

ICS Number Code 77.140.85 (Iron and steel forgings)

DOI: 10.1520/A0939_A0939M-12

Additional information

Standard Title	A939/A939M-12 Standard Practice for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings
Published Code	ASTM
Publication Date	2012
Pages Count	3
ICS Codes	77.140.85 - Iron and steel forgings