DIN 50103-3:2017 Edition
$22.10
Testing of metallic materials – Rockwell hardness test – Part 3: Modified Rockwell scales Bm and Fm for thin steel sheet
Published By | Publication Date | Number of Pages |
DIN | 2017-05 | 12 |
This standard specifies modified Rockwell method Bm and Fm for thin sheets. The modified Rockwell method Bm and Fm apply if the samples are that thin that a visible deformation occurs on the bearing surface of the sample when using the Rockwell method B and F according to DIN EN ISO 6508-1. It is recommended to limit the application of the modified Rockwell method Bm and Fm on thin sheet according to the following thickness ranges: – Modified method according to Rockwell Bm: product thickness s > 1,1 mm – Modified method according to Rockwell Fm: product thickness 1,1 mm = s > 0,6 mm The hardness test according to the modified Rockwell method Bm and Fm is applicable for thin sheet of steel whose hardness is within the following ranges: – Modified method according to Rockwell Bm: 50 HRBm to 100 HRBm – Modified method according to Rockwell Fm: 60 HRFm to 115 HRFm.