Determination of the grain size and of the content of non metallic inclusions of an austenitic steel

Presentation for participants

Reference of the ILC: ME20SS
References of test methods: ISO 643  ASTM E112  ISO 4967  ASTM E45 Method A, D, E
 EN 10247          
Frequency: Each year
Time schedule:  
Opening date of registrations Registration deadline Date of shipment of samples Start of the tests Deadline for carrying out the tests and providing the results Date of delivery of reports
15/11/2019 30/06/2020 05/09/2020 15/09/2020 31/10/2020 15/12/2020
Note: After the deadline, registrations are only accepted within the limit of availability of samples
Main characteristics: G (Grain size), Rating of A, B, C, D, DS inclusions according to ISO 4967 method A and/or method B and/or ASTM E45 method E - Ratings P, M, K according to EN 10247
Other characteristics: -
Determination of the assigned values (“true values” for each characteristic): By statistical computation of the totality of the results with possible selection on competence criteria (accreditation, validation by a reference body, quantity of tests performed in the year), test to detect possible collusion, merging of results not obtained in reproductibility conditions, suppression of technically unvalid results.
Type of statistical computation: For numerical results, the statistical computation will provide an assigned value with its attached uncertainty, values of standard deviations for repeatability and reproductibility, limits of alerts for bias and repeatability of the participant, indiviual values for uncertainty of results of participants.
Number of products submitted to tests: 1
Number of samples per participation: 6
Max number of operators per participation: 10 (For this CIL, the type of test and sample size allow to provide results determined by several different operators)
Product submitted to tests: Austenitic stainless steel
Type of samples: Bars
Approximate dimensions of samples: Ø18x250 mm
Specific preparation to be performed by the participant:  Preparation of surfaces of observation
Special notice for this ILC: Results obtained by several methods may be provided (if the methods are not destructive)