NS EN 10090 : 1ED 1999
Current
The latest, up-to-date edition.
VALVES STEELS AND ALLOYS FOR INTERNAL COMBUSTION ENGINES
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 Supplementary information
6 Manufacturing process
6.1 Melting process
6.2 Manufacture of the product
6.3 Heat treatment condition and surface finish at
the time of delivery
7 Requirements
7.1 Chemical composition
7.2 Mechanical properties
7.3 Internal and external condition
7.4 Dimensions and tolerances
8 Testing
8.1 Agreement of tests and inspection documents
8.2 Number of tests
8.3 Selection and preparation of samples and test pieces
8.4 Test methods
8.5 Retests
8.6 Certification of the tests
9 Marking
10 Complaints
Annex A (informative) Technical supplement
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