ISO 2739-1973 rus PDF

Full title and description

ISO 2739:1973 — Sintered metal bushes — Determination of radial crushing strength. Russian edition / translation published as Ст ISO 2739-1973 (русский вариант).

Abstract

This standard specifies a laboratory method for measuring the radial crushing strength of sintered metal components in the form of hollow cylinders (bushes). It gives the principle, required apparatus, test-piece preparation, test procedure, expression of results and test report format, and is applicable to bushes made from pure or alloyed metal powders.

General information

• Status: Withdrawn (superseded by a later edition/revision).
• Publication date: December 1973 (1973-12).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.160; 77.040.10.
• Edition / version: Edition 1 (1973).
• Number of pages: 2.

Scope

Specifies a standardised test for determining the radial crushing strength of sintered metal bushes (hollow cylindrical sintered parts). The method covers test-piece selection and preparation, apparatus and fixtures, loading and measurement procedure, calculation of crushing strength, and test reporting requirements. It is intended for sintered bushes composed of pure or alloyed metal powders.

Key topics and requirements

• Definition of test specimen form (hollow cylindrical bush) and preparation requirements.
• Required test apparatus and fixture geometry for radial crushing tests.
• Test procedure: alignment, loading rate, measurement of force at failure and deformation recording.
• Calculation and expression of radial crushing strength (force and derived stress where appropriate).
• Reporting requirements: sample identification, test conditions, results and any deviations from the method.
• Applicability limited to sintered metal bushes (materials composed of metal powders, including alloys).

Typical use and users

Used by manufacturers of sintered metal components, quality control and materials testing laboratories, product design and validation teams, purchasing/specification engineers, and standards committees. Typical applications include acceptance testing, production control, material comparisons and qualification of sintered bushes for mechanical assemblies.

Related standards

Superseding/revision: ISO 2739:2012 (revised edition addressing the same test method). Related sintered-metal standards include ISO 2738 (permeable sintered metal materials — determination of density, oil content and open porosity) and other ISO test methods for sintered materials and components.

Keywords

sintered metal, bush, bushing, radial crushing strength, crushing test, mechanical test, sintered components, test method, ISO 2739, Ст ISO 2739-1973

FAQ

Q: What is this standard?

A: ISO 2739:1973 is an International Standard that specifies a method to determine the radial crushing strength of sintered metal bushes (hollow cylindrical parts).

Q: What does it cover?

A: It covers specimen form and preparation, test apparatus and fixtures, test procedure (loading and measurement), calculation of results and the required information for test reports. The method applies to sintered bushes made from pure or alloyed metal powders.

Q: Who typically uses it?

A: Manufacturers of sintered metal bushes, materials and mechanical testing laboratories, design and quality engineers, procurement/specification teams and standards bodies involved in sintered component testing and certification.

Q: Is it current or superseded?

A: The 1973 edition has been withdrawn and a later revision/edition is available (ISO 2739:2012). For current requirements and any technical changes, refer to the revised edition.

Q: Is it part of a series?

A: It is part of the body of ISO standards covering sintered metal materials and components (for example ISO 2738 and related test methods). The series addresses material properties, dimensional and mechanical tests specific to sintered products.

Q: What are the key keywords?

A: Sintered metal, bush, bushing, radial crushing strength, crushing test, sintered components, ISO 2739, mechanical testing.