ASTM-B998 Standard Guide for Hot Isostatic Pressing (HIP) of Aluminum Alloy Castings

ASTM-B998 - 2017 EDITION - CURRENT


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Standard Guide for Hot Isostatic Pressing (HIP) of Aluminum Alloy Castings
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Scope

1.1 This guide presents requirements for hot isostatic pressing (HIP) of aluminum alloy castings. HIPing is a process in which components are subjected to the simultaneous application of heat and high pressure in an inert gas medium. The process is to be used for the reduction of internal (non-surface connected) porosity. The document is to describe the general parameters of the HIP process, describe certification procedures and a description that the process has been followed. It is not intended to be a description of a heat treating procedure. This is not meant to supersede an end user’s specification where one exists.2

1.2 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.

1.3 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.

1.4 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

aluminum casting; autoclave; densification; HIP; HIPing; hot isostatic pressing; internal voids; inert gases; porosity; pressure; thermal couple; thermal treatment;; ICS Number Code 77.120.10 (Aluminium and aluminium alloys); 77.150.10 (Aluminium products)

To find similar documents by ASTM Volume:

02.02 (Aluminum and Magnesium Alloys)

To find similar documents by classification:

77.120.10 (Aluminium and aluminium alloys)

77.150.10 (Aluminium products)

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Document Number

ASTM-B998-17

Revision Level

2017 EDITION

Status

Current

Modification Type

New

Publication Date

July 15, 2017

Document Type

Guide

Page Count

4 pages

Committee Number

B07.01