BS ISO 4954:2021
$215.11
Steels for cold heading and cold extruding
Published By | Publication Date | Number of Pages |
BSI | 2021 | 76 |
This document specifies requirements for non-alloy and alloy steels that are intended for cold heading or cold extruding and are delivered as wire rods, wire or bars. It also contains specific requirements for:
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steels not intended for heat treatment, with diameters from 2 mm to 100 mm (see Annex A);
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case-hardening steels with diameters from 2 mm to 100 mm (see Annex B);
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steels for quenching and tempering, including boron alloyed steels (see Table C.3), with diameters from 2 mm to 100 mm (see Annex C);
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stainless steels with diameters of 0,8 mm up to 50 mm for austenitic steels, up to 25 mm for ferritic steels and up to 100 mm for martensitic steels (see Annex D).
This document (except Annex A) is applicable to the properties of cold-headed or cold-extruded parts which have been subjected to a subsequent heat treatment. As the properties of the parts in the cold-headed or cold-extruded, and subsequently not-heat-treated condition, are largely dependent on the applied cold-heading or cold-extruding conditions, these are, if necessary, subject to agreement between the purchaser and the manufacturer of the parts.
PDF Catalog
PDF Pages | PDF Title |
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2 | undefined |
7 | Foreword |
9 | 1 Scope 2 Normative references |
10 | 3 Terms and definitions |
11 | 4 Classification and designation 4.1 Classification 4.2 Designation 5 Information to be supplied by the purchaser 5.1 Mandatory information |
12 | 5.2 Options and/or supplementary or special requirements |
13 | 5.3 Ordering example 6 Manufacturing process 6.1 General 6.2 Deoxidation 6.3 Heat-treatment condition and surface condition at delivery 6.3.1 Heat-treatment condition 6.3.2 Particular surface conditions |
14 | 6.4 Traceability of the cast 6.5 Statistical evaluation 7 Requirements 7.1 Chemical composition, mechanical properties and hardenability 7.1.1 General 7.1.2 Chemical composition |
16 | 7.1.3 Mechanical properties 7.1.4 Hardenability (only applicable to steel grades of Annexes B and C) |
17 | 7.2 Grain size 7.3 Carbide spheroidization (only applicable for steels of Annexes A, B and C) 7.4 Non-metallic inclusions 7.4.1 Microscopic inclusions (only applicable for steels of Annexes B and C) 7.4.2 Macroscopic inclusions 7.5 Internal soundness 7.6 Aptitude to cold forming |
18 | 7.7 Surface quality 7.7.1 General 7.7.2 Wire rod (only applicable for steels of Annexes A, B and C) 7.7.3 Bars (only applicable for steels of Annexes A, B and C) 7.7.4 Wire rod and bars for stainless steels (only applicable for steels of Annex D) 7.7.5 Bright products 7.7.6 Removal of surface defects 7.7.7 Non-destructive testing of the surface 7.8 Decarburization (only applicable for steels of Annexes B and C) |
19 | 7.9 Corrosion resistance of stainless steels 7.10 Shape, dimensions and tolerances 8 Inspection 8.1 Testing procedures and types of documents |
20 | 8.2 Summary of specific inspection and frequency of testing |
21 | 9 Preparation of samples and test pieces 9.1 Selection and preparation of samples for product analysis 9.2 Selection and preparation of samples and test pieces for the mechanical test |
22 | 10 Test methods 10.1 Chemical analysis 10.2 Mechanical tests 10.3 Hardenability and core hardness tests 10.3.1 Verification of hardenability 10.3.2 Verification of core hardness 10.4 Aptitude to cold forming 10.4.1 Upsetting test for non-alloy and alloy steels of Annexes A, B and C |
23 | 10.4.2 Upsetting test for stainless steels of Annex D 10.5 Non-destructive testing 10.6 Visual and dimensional test 10.7 Retests 11 Surface treatment, marking and packaging 11.1 Surface treatment and temporary corrosion protection 11.2 Marking |
24 | 11.3 Packaging |
25 | Annex A (normative) Specific requirements for cold heading and cold extruding steels not intended for heat treatment after cold working |
29 | Annex B (normative) Specific requirements for cold heading and cold extruding case-hardening steels |
41 | Annex C (normative) Specific requirements for cold heading and cold extruding steels for quenching and tempering |
59 | Annex D (normative) Specific requirements for cold heading and cold extruding stainless steels |
67 | Annex E (normative) Supplementary or special requirements |
71 | Annex F (informative) Designation of steels given in Annexes A, B, C and D and the comparable grades covered in various designation systems |
75 | Bibliography |