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BS EN ISO 683-17:2023 – TC

$217.84

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

Published By Publication Date Number of Pages
BSI 2023 79
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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.

PDF Catalog

PDF Pages PDF Title
47 undefined
49 European foreword
Endorsement notice
52 Foreword
54 1 Scope
2 Normative references
55 3 Terms and definitions
4 Classification and designation
4.1 Classification
4.2 Designation
56 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
57 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
58 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
59 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
60 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
72 Annex A (normative) Supplementary or special requirements
75 Annex B (informative) Designations of the steels given in Tables 3, 5 and 6 and of comparable grades covered in various designation systems
77 Bibliography
BS EN ISO 683-17:2023 - TC
$217.84