Our mines produce Semi Refractory Grade Chrome Ore Lumps too,

the specs are as folows:

Cr2O3 = 42% min, typ 44%

SiO2 = 3.5% min, typ 2.5%

Cr:Fe = 2.5:1 min, typ 2.7:1

Al2O3 = 20% max

MgO= 22% max

P = 0.01% max

S = 0.03% max

Size: 10mm – 300mm = 95% min

0 – 10mm = 5% max

Packing: in Bulk in 20ft Contaners.