The JB semi-automatic Charpy Impact Tester assesses the impact resistance of metal materials under dynamic loads, particularly suited for high-impact toughness ferrous metals like steel and its alloys. It measures absorbed work by comparing initial pendulum impact energy with post-impact residual energy, using a 150J/300J/500J pendulum for (10×10) mm samples.
ISO 148-1:2016 Metallic materials — Charpy pendulum impact test
ASTM E23 Standard Test Methods for Notched Bar Impact Testing of Metallic Materials
| Model | JB-300B | JB-500B |
|---|---|---|
| Impact Energy | 150 J / 300 J | 250 J / 500 J |
| Impact Velocity | 5.2 m/s(17ft/s) | 5.4 m/s(17.72ft/s) |
| Pendulum Preparing Angle | 150° | |
| Span of Specimen Seat | 40 mm/1.57'' | |
| End Face Radius of Specimen Seat | R1 – 1.5 mm/0.03937''-0.059'' | |
| Radius of Impact Knife | R2 – 2.5 mm/0.079''-0.098'' | |
| Specimen Size | 10 mm × 10 mm × 55 mm | |
| Weight | 450 kg/992lbs | 750 kg/1563lbs |
| Size (L×W×H) | 2124 mm × 600 mm × 1340 mm/83.62''X23.62''X52.76'' | |