NG FIreclay Insulation REfractory Bricks 

Items	NG-1.0	NG-0.9	NG-0.8	NG-0.7	NG-0.6
g/cm3                      ≤ Bulk density	1.0	0.9	0.8	0.7	0.6
MPa            ≥     Cold crushing strength	3.5	3.0	2.5	1.0	0.8
(W. /M.K)         ≤ Thermal conductivity	0.50	0.40	0.35	0.35	0.25
2%  C Test temperature at which PLC not  less than 2%	1350	1300	1250	1250	1200