ASTM-A986/A986M 2021

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A986/A986M-01(2021) Standard Specification for Magnetic Particle Examination of Continuous Grain Flow Crankshaft Forgings

Published By	Publication Date	Number of Pages
ASTM	2021	3

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Categories: 77.140.85 - Iron and steel forgings, ASTM

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Description

ASTM A986/A986M-01-Reapproved2021

Active Standard: Standard Specification for Magnetic Particle Examination of Continuous Grain Flow Crankshaft Forgings

ASTM A986/A986M

Scope

1.1 This specification covers the magnetic particle examination of forged continuous grain flow (CGF) crankshafts intended for medium speed diesel engines.

1.2 For the purpose of magnetic particle indication assessment, the crankshaft is divided into four zones of decreasing operational stress. Acceptance criteria have been set for each zone.

1.3 The engines to which these crankshafts are fitted are commonly used for diesel electric locomotives, marine propulsion, and power generation. Engines fueled by natural gas also fall into this medium speed category.

1.4 Specification A983/A983M is a product specification that covers the manufacture of CGF crankshafts.

1.5 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 necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

ICS Code

ICS Number Code 77.140.85 (Iron and steel forgings)

DOI: 10.1520/A0986_A0986M-01R21

Additional information

Standard Title	A986/A986M-01(2021) Standard Specification for Magnetic Particle Examination of Continuous Grain Flow Crankshaft Forgings
Published Code	ASTM
Publication Date	2021
Pages Count	3
ICS Codes	77.140.85 - Iron and steel forgings