The specifications for mullite self flowing castable:

Product Index		Al2O3:65%	Al2O3:70%	Al2O3:75%	Al2O3:80%
Chemical composition	Al2O3 % ≥	65	70	75	80
	SiO2  % ≤	25	23	20	15
	CaO  % ≤	1.8	1.7	1.7	1.65
Bulk density     g/cm3  ≥		2.50	2.50	2.60	2.70
Cold crushing strength  Mpa ≥	110℃×24h	50	60	60	64
	1100℃×3h	70	75	76	80
	1500℃×3h	75	80	80	100
Modulus of rupture   Mpa ≥	110℃×24h	8	8	8	10
	1100℃×3h	10	10	10	12
	1500℃×3h	10	12	12	15
Reheating linear change %	1100℃×3h	0~+0.5	0~+0.5	0~+0.5	0~+0.5
	1500℃×3h	0~+0.5	0~+0.5	0~+0.5	0~+0.5
Construction water  %		6~8	6~8	6~8	6~8
Max working temperature ℃		1680	1700	1700	1750