ns-ui / jominy-quench
Which grade hardens harder, deeper
One face of each bar is water-quenched; hardness falls off with distance from that face along a curve unique to the alloy — the standard ASTM A255 Jominy end-quench test, run side by side.
| Grade | 1/16″ | 2/16″ | 4/16″ | 6/16″ | 8/16″ | 12/16″ | 1″ | 1.5″ | 2″ |
|---|---|---|---|---|---|---|---|---|---|
| 55 HRC | 50 HRC | 36 HRC | 28 HRC | 24 HRC | 22 HRC | 21 HRC | 20 HRC | 20 HRC | |
| 58 HRC | 55 HRC | 48 HRC | 42 HRC | 37 HRC | 32 HRC | 29 HRC | 26 HRC | 24 HRC | |
| 56 HRC | 55 HRC | 53 HRC | 51 HRC | 49 HRC | 46 HRC | 44 HRC | 41 HRC | 38 HRC | |
| 58 HRC | 56 HRC | 53 HRC | 50 HRC | 47 HRC | 43 HRC | 40 HRC | 36 HRC | 33 HRC |
Hover or focus a grade to trace its curve.