Heat-treated steels, alloy steels and free-cutting steels — Part Ball and roller bearing steels. Heat-treated steels, alloy steels and free-cutting steels – Part Ball and roller bearing steels (ISO ); German version EN ISO. Find the most up-to-date version of ISO at Engineering
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Help Center Find new research papers in: If the order does not contain any specification of this type, an inspection certificate 3. Where necessary, exact requirements may be agreed upon at the time of enquiry and order.
This part of ISO specifies the technical delivery requirements for five groups of wrought ball and roller bearing steels, namely: The work of preparing International Standards is normally carried out through ISO technical committees. Need more than one copy?
Your Alert Profile lists the documents that will be monitored. Proceed to Checkout Continue Shopping. Acceptance limits are shown above. For verification of the grain size, see A. Please first verify your email before subscribing to alerts. In addition the inspection certificate report shall cover: Skip to main content. When making such agreements, the steel grade and the size of the product shall be taken into account. Case-hardening steels may show remnants of incompletely spheroidized carbides.
Please first log in with a verified email before subscribing to alerts. It may be used in the special methods for expressing results, i.
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If agreed at the time of enquiry and order the manufacturer shall give sufficient information about the calculation for the customer to confirm the result. Standards Subsctiption may be the perfect solution. In such cases, the micrographic investigation is not necessary. Also the details for sampling and for preparation of the test pieces for testing the surface quality shall be agreed upon at the time of enquiry and order.
Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission.
You may delete a document from your Alert Profile at any time. The aluminium content shall be given in the inspection document. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
Click here to sign up. If the verification of the carbide distribution is required, the details of this shall also be agreed upon. If requested, the purchaser shall be informed about the steel making process used. The worst field for each individual inclusion type shall be recorded and a mean value calculated.
In particular the different approval criteria needed for the different types of ISO documents should be noted. Aciers pour roulements Reference number ISO The calculation method is left to the discretion of the manufacturer.
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EVS-EN ISO – Estonian Centre for Standardisation
This standard is also available to be included in Standards Subscriptions. For these characterstics, additional requirements may be agreed upon at the time of enquiry and order. For undated references, the latest edition of the referenced document including any amendments applies. Subscription pricing is determined by: Otherwise, one test piece per cast shall be inspected for the determination of the austenitic grain size.
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This standard is not included in any packages. For the degree of spheroidization see A.
NBN EN ISO 683-17
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If specific 68-17 is ordered, the grain size requirement is to be verified by determining the aluminium content or micrographically. Heat-treated steels, alloy steels and free-cutting steels — Part Alloy steels for quenching and tempering — Part 3: All reasonable precau- tions should be taken to prevent additions from scrap or other materials, used in the manufacture of such elements, which affect the hardenability, mechanical properties and applicability.
The maximum Vickers hardness value HV must be agreed upon at the time of enquiry and order. For through-hardening, stainless and high-temperature bearing steels, this condition is also used if the steel is processed by machining operations.