Gilmore Rockwell Hardness Test Blocks (also known as Rockwell Test Coupons) are manufactured and calibrated to current ASTM E-18 and/or ISO 6508 specifications within an ISO 17025 accredited laboratory.
Grid patterns can be added to our Rockwell test blocks to insure spacing requirements per ASTM E-18.
Rockwell Test Blocks - Regular Scale
| Part #: | Hardness: | Nominal Ranges Available: | Penetrator: | Load: |
|---|
| 803 | HRA Scale | HRA-20 To HRA-84 | C Diamond | 60 Kg |
| 802 | HRB Scale | HRB-10 To HRB-95 | 1/16" Ball | 100 Kg |
| 801 | HRC Scale | HRC-25 To HRC-65 | C Diamond | 150 Kg |
| 811 | HRD Scale | HRD-44 To HRD-73 | C Diamond | 100 Kg |
| 804 | HRE Scale | HRE-75 To HRE-96 | 1/8" Ball | 100 Kg |
| 810 | HRF Scale | HRF-70 To HRF-97 | 1/16" Ball | 60 Kg |
| 811 | HRG Scale | HRG-2.5 To HRG-64 | 1/16" Ball | 150 Kg |
| 811 | HRH Scale | HRH-87 To HRH-90 | 1/8" Ball | 60 Kg |
| 811 | HRK Scale | HRK-50 To HRK-95 | 1/8" Ball | 150 Kg |
| 811 | HRL Scale | HRL-113 To HRL125 | 1/4" Ball | 60 Kg |
| 811 | HRM Scale | HRM-101 To HRM-122 | 1/4" Ball | 100 Kg |
| 811 | HRP Scale | HRP-86 To HRP-115 | 1/4" Ball | 150 Kg |
| 811 | HRR Scale | HRR-14 | 1/2" Ball | 60 Kg |
| 811 | HRS Scale | HRS-105 | 1/2" Ball | 100 Kg |
Rockwell Test Blocks – Superficial Scale
| Part #: | Hardness: | Nominal Ranges Available: | Penetrator: | Load: |
|---|
| 808 | HR15N Scale | HR15N-72 To HR15N-92 | N Diamond | 15 Kg |
| 808 | HR30N Scale | HR30N-46 To HR30N-80 | N Diamond | 30 Kg |
| 808 | HR45N Scale | HR45N-25 To HR45N-70 | N Diamond | 45 Kg |
| 809 | HR15T Scale | HR15T-72 To HR15T-91 | 1/16" Ball | 15 Kg |
| 809 | HR30T Scale | HR30T-40 To HR30T-79 | 1/16" Ball | 30 Kg |
| 809 | HR45T Scale | HR45T-12.5 To HR45T-67 | 1/16" Ball | 45 Kg |
| 811 | HR15W Scale | HR15W-84 To HR15W-95 | 1/8" Ball | 15 Kg |
| 811 | HR30W Scale | HR30W-67 To HR30W-90 | 1/8" Ball | 30 Kg |
| 811 | HR45W Scale | HR45W-50 To HR45W-84 | 1/8" Ball | 45 Kg |
| 811 | HR15X Scale | HR15X-97 | 1/4" Ball | 15 Kg |
| 811 | HR30X Scale | HR30X-80 To HR30X-96 | 1/4" Ball | 30 Kg |
| 811 | HR45X Scale | HR45X-88 | 1/4" Ball | 45 Kg |