This document specifies a method for determining the hardenability of steel by end quenching (Jominy test) by using a test piece 25 mm in diameter and at least 100 mm long. By agreement and for a defined field of application, the test described in this document can be replaced by the calculation of the Jominy curve according to an accepted mathematical model.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and designations
5 Principle
6 Form of test pieces and their preparation
6.1 Sampling
6.2 Dimensions
6.3 Heat treatment
6.4 Machining
7 Apparatus
8 Heating and quenching of test piece
8.1 Heating
8.2 Quenching
9 Measurement of hardness after quenching
10 Expression of results
10.1 Hardness at any one point
10.2 Drawing of the hardness curves
10.3 Description of the hardenability characteristics of a particular steel
10.4 Codification of test result
11 Test report
Annex A Specification for the hardenability of a product (informative)
Annex B Additional information to Clause 11 (informative)
Annex C Computational methods for determination of hardenability (informative)