BS EN ISO 683-17:2023

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Heat-treated steels, alloy steels and free-cutting steels – Ball and roller bearing steels

Published By	Publication Date	Number of Pages
BSI	2023	34

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Categories: 77.140.10 - Heat-treatable steels, BSI

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Description

This document specifies the technical delivery requirements for five groups of wrought ball and roller bearing steels as listed in Table 3, namely — through-hardening bearing steels (steels with about 1 % C and 1 % to 2 % Cr), — case-hardening bearing steels, — induction-hardening bearing steels (unalloyed and alloyed), — stainless bearing steels, and — high-temperature bearing steels. This document is applicable to the products and heat-treatment conditions given in Table 1 and the surface conditions given in Table 2.

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PDF Pages	PDF Title
2	undefined
4	European foreword Endorsement notice
7	Foreword
9	1 Scope 2 Normative references
10	3 Terms and definitions 4 Classification and designation 4.1 Classification 4.2 Designation
11	5 Information to be supplied by the purchaser 5.1 Mandatory information 5.2 Options/Supplementary or special requirements 6 Manufacturing process 6.1 General
12	6.2 Deoxidation, vacuum degassing and hydrogen removal 6.3 Heat-treatment and surface condition at delivery 6.3.1 Heat-treatment condition 6.3.2 Particular surface conditions 6.3.3 Traceability of the cast 7 Requirements 7.1 General 7.2 Chemical composition 7.3 Hardenability
13	7.4 Hardness 7.5 Microstructure 7.5.1 Austenitic grain size of case-hardening and induction-hardening bearing steels 7.5.2 Spheroidization and distribution of carbides 7.5.3 Structure of case-hardening steels in the condition +FP 7.6 Non-metallic inclusions 7.6.1 Microscopic inclusions 7.6.2 Macroscopic inclusions 7.7 Internal soundness 7.8 Surface quality
14	7.9 Shape, dimensions and tolerances 8 Inspection 8.1 Testing procedures and types of inspection documents 8.2 Frequency of testing 8.3 Specific inspection and testing 8.3.1 Verification of the hardenability and hardness 8.3.2 Inspection of the surface quality
15	8.3.3 Dimensional and shape inspection 9 Test methods 9.1 Chemical analysis 9.2 Hardness and hardenability tests 9.2.1 Hardness 9.2.2 Verification of hardenability 9.2.3 Retests 10 Marking
27	Annex A (normative) Supplementary or special requirements
30	Annex B (informative) Designations of the steels given in Tables 3, 5 and 6 and of comparable grades covered in various designation systems
32	Bibliography

Additional information

Status	Definitive
Pages	34
Publication Date	2023-10-09
ISBN	978 0 539 21429 1
Standard Number	BS EN ISO 683-17:2023
Title	Heat-treated steels, alloy steels and free-cutting steels – Ball and roller bearing steels
Identical National Standard Of	EN ISO 683-17, ISO 683-17
Replaces	BS EN ISO 683-17:2014
Descriptors	Ball bearings, Induction-hardening, Case-hardening, Bars (materials), Non-metallic inclusions, Compositional tolerances, Wires, Free-machining steels, Pipes, Heat-treatable steels, Conformity, Billets, Inspection, Roller bearings, Test specimens, Designations, Alloy steels, Hardness, High temperatures, Surface treatment, Verification, Crystal microstructure, Annular shape, Wrought steels, Wrought alloys, Steels, Hardening, Ordering, Stainless steels, Chemical composition
Publisher	BSI
Committee	ISE/105
ICS Codes	77.140.10 - Heat-treatable steels

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BS EN ISO 683-17:2023

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