Set of 10 R5 specimens, free cutting steel Specimens for Charpy notched-bar impact test Features - R5 specimens as accessories for the WP 400 experimental unit Learning objectives/experiments - together with WP 400 -- determine the notched-bar impact work -- determine the notched-bar impact strength -- analyse the fracture surface characteristics -- plot a notched-bar impact work–temperature diagram Specification [1] specimens for Charpy notched-bar impact test [2] 10 specimens made of free cutting steel, form R5 [3] accessory for WP 400 Impact test, 25Nm Technical data 10 notched-bar impact specimens - form: R5 - LxWxH: 55x5x10mm - notch: 2x5mm - material: free cutting steel Weight: approx. 250g