PREN 10089 : DRAFT 1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
HOT-ROLLED STEELS FOR QUENCHED AND TEMPERED SPRINGS - TECHNICAL DELIVERY CONDITIONS
01-12-2002
12-01-2013
Foreword
1 Scope
2 Normative references
3 Definitions
4 Classification and designation
4.1 Classification
4.2 Designation
5 Information to be supplied by the purchaser
5.1 Mandatory information
5.2 Options
6 Manufacturing process
6.1 General
6.2 Deoxidation
6.3 Heat-treatment and surface condition at delivery
7 Requirements
7.1 Chemical composition, hardness and hardenability
7.2 Shearability
7.3 Structure
7.4 Internal soundness
7.5 Surface quality and decarburisation
7.6 Dimensions, tolerances on dimensions and shape
8 Inspection and testing
8.1 Types and contents of inspection documents
8.2 Specific inspection and testing
9 Marking
Annex A (normative) Supplementary or special requirements
Annex B (informative) Maximum dimensions for rounds and flats
based on the 100 % hardenability scatterband
Annex C (informative) Dimensional standards applicable to products
complying with this European Standard
Annex D (informative) Guidance values for the mechanical
properties of quenched and tempered test pieces
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