Conventional Denset Castables

Dense Castables

Name	MST °C	Chemical analysis (fired basis)			Cold Crushing Strength MN/m³			PLC% MST	W/MK^§ 1000°C	Density kg/m³	% Water addition	Max Grain Size mm
Name	MST °C	Al₂O₃	SiO₂	Fe₂O₃	Dry	1000°C	MST	PLC% MST	W/MK^§ 1000°C	Density kg/m³	% Water addition	Max Grain Size mm
Joncast 1850	1850	96.0	0.1	0.1	55	35	64	-0.4	2.10	2900	7-9	6
Joncast 1800	1800	96.0	0.4	0.3	75	54	55	+0.4	2.20	3000	5-7	8 or 5
Joncast 75	1700	77.3	13.6	1.0	75	40	60	-0.8	1.75	2700	7-9	8 or 5
Joncast ECO	1650	60.0	30.0	1.0	75	49	55	+2.5	1.00	2400	8-11	8 or 5
Joncast MS	1600	49.5	43.8	0.7	70	46	60	+2.1	0.89	2180	8-11	8 or 5
Joncast SR2	1600	47.5	47.0	0.7	47	20	70	+1.5	0.89	2200	9-11	8 or 5
Joncast 5	1600	74.0	13.7	1.9	65	34	65	+0.9	1.25	2600	7-10	8 or 5
Joncast FS	1500	45.5	44.6	1.1	40	30	40	+1.9	1.10	2150	8-11	8 or 5
Joncast 1550	1500	69.1	14.8	4.6	60	25	60	-1.8	1.14	2550	9-11	8 or 5
Joncast 1400	1400	44.9	40.5	5.1	50	30	50	+1.0	0.90	2100	12-14	8 or 5
Joncast 1300	1300	37.4	47.9	5.4	40	17	20	+1.6	0.81	2050	12-14	8 or 5
Joncast 1200AR	1200	20.7	40.5	14.4	70	28	60	+1.5	1.20	2450	8-10	8 or 5
Joncast 1200HS	1200	44.8	8.4	13.7	120	50	60	+1.5	1.75	2720	5-7	10 or 4

^§ Thermal conductivity mean temperature 1000°C

Sheffield Refractories Limited offer the Joncast range of dense refractory concretes that are user friendly and easier to install than low cement castables or brickwork. Mixers, supervisors and installers can be hired to place these materials. There are many products to chose from and our sales and technical staff will be happy to offer advice on materials for specific applications