UA 94-95 Grinding Plates, super-iron, wear-resistant

Composition of 8" diameter Grinding Plates

UA 94/95 (8" diameter), Item number 24480

20.5-25.4 Rockwell C
Carbon: 3.20-3.30
Silicon: 1.60-1.90
Manganese: 0.90-1.10
Phosphorous: <0.20
Sulfur: <0.12
Copper: 1.40-1.60
Chrome: 0.25-0.35
Other Trace: <0.20
Iron: Balance