Refractory Blocks

Type	AI2O3%	Fe2O3%	PCE OC	App. Porosity %	BD Min Gms/cc	CCS Kg/Cm²	RUL (TA) °C	% PLC @ °C/hrs Max.
KR30	30	3.00	29	26	1.90	250	1350	±0.8% @1350/2 hrs
KR40	40	3.00	32	25	2.00	300	1400	±0.8% @1400/2 hrs
KR60	60	3.50	35	24	2.50	450	1450	±2.0% @1500/2 hrs
KR70	70	3.50	36	23	2.60	450	1460	±2.5% @1500/2 hrs
NOTE: • Provided above are average test data, subject to reasonable variations • The above specifications relate to machine-pressed standard bricks only • The AP, BD and CCS values are arithmetic mean of five individual results • Low ferric bricks also available • Size tolerance: Variation from specified dimensions, covering both warp age and shrinkage shall be allowed to the extent of ± 2% or ± 2 mm, whichever is greater

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