Origin	China
Model Number	19mm,25mm,38mm,50mm,76mm
Brand Name	XINTAO

Chemical composition

SiO2	Al2O3	Fe2O3	CaO	MgO	K2O+Na2O	Other
>73%	17-23%	<1.0%	<0.5%	<0.5%	2-4%	<0.1%

Physical properties

Index	Value
Specific gravity(g/cm3)	2.3
Water absorption(%)	<0.3
Acid resistance(%)	>99.6
Max operating temp.(℃)	1100
Porosity(%)	<1
Moh’s hardness(scale)	>6.5
Thermal conductivity(w/m.k)	0.9-1.0
Specific heat(j/kg℃)	850-900

Technical data

Spec. (inch)	Sepc. (mm)	W (mm)	H (mm)	L (mm)	T (mm)	Number per m³	Bulk density (Kg/m³)	Free volume (%)	Surface area (m²/m³)
1/4”	6	4.5	4.5	9	1.5	4,050,000	1050	54	1100
3/8”	10	8	8	16	2	1,560,000	900	63	825
1/2”	12	10	10	20	2.5	610,000	780	68	647
5/8”	16	12	12	24	2.5	269,000	700	71	535
3/4”	19	14	14	28	3	146,000	670	75	350
1”	25	21	19	38	4	59,000	670	75	250
1.5”	38	30	30	60	4.5	19,680	580	80	180
2”	50	40	40	80	5.5	8,243	550	79	120
3”	76	57	57	114	9	2,400	530	75	91

Dimension

Normal size		Diameter of Deck (mm)	Outside diameter (mm)	Height (mm)	Wall thickness (mm)	Width (mm)
1/4”	6mm	6±2.0	9±2.0	4.5±2.0	1±0.5	4.5±2.0
3/8”	10mm	10±2.0	16±2.0	8±2.0	1.5±0.5	8±2.0
1/2”	12mm	12±1.0	20±1.4	10±1.0	2.0±0.45	10±2.0
5/8”	16mm	16±1.0	24±1.5	12±1.0	2.0±0.5	12±2.0
3/4”	19mm	19±1.5	28±2.0	14±1.0	2.5±0.5	14±2.0
1”	25mm	25±1.5	38±2.0	19±1.0	3.0±0.5	20±2.0
1.5”	38mm	38±2.0	60±3.0	30±1.5	4.0±1.0	30±2.5
2”	50mm	50±2.5	80±4.0	40±2.0	5.0±1.0	40±3.0
3”	76mm	76±4.0	114±4.0	57±.0	9.0±1.0	57±4.0