HYSIL BLOCKS SPECIFICATION

GRADES

Max. Recommended Operating Temp. &#176(C)

H-800     –  800
H-1000  –  1000
H-1100  –  1100

SIZES

Thickness (in mm)
25, 40, 50, 65, 75 & 100

Standard Size (in mm)
1000×500
900×600
600×15
500×150
450×150

HYSIL BLOCKS SPECIFICATION

HYSIL TECHNICAL SPECIFICATIONS (BLOCKS)

PRODUCT NAME H-800 Grade H-1000 Grade H-1100 Grade
     
PROPERTIESUNIT Specified Value Standard Value Specified Value Standard Value Specified Value* Standard Value**
              
Temperature, max serviceDeg C – 800 927 950 – 1050
              
Density, drykg/m3 352 max ≤ 300 352 max ≤ 352 352 max ≤ 352
              
Flexural strength, (min.)kN/m2 344 min. ≥ 344 344 ≥ 344 344 min. ≥ 344
              
** Compressive Strength,at min 5% deformationkPa 688 min. ≥ 688 688 min. ≥ 688 688 min. ≥ 688
      
              
Soaking heat linear shriankage, at 12 hoursDeg C 2% max. <2% at 800 °C 2% max. <2% at 950 °C 2% max. <1.5% at 1050 °C
              
Mass Loss by Tumbling%            
a) after 1st 10 min. 20% max. <20% 20% max. <20% 20% max. <20%
b) after 2nd 10 min. 40% max. <40% 40% max. <40% 40% max. <40%
              
Moisture content, by weight% 20% max. <20% 20% max. <20% 20% max. <20%
              
Apparent Thermal ConductivityW/mk            
204o C mean temp. 0.088 max <0.079 0.088 max <0.079 0.088 max <0.088
316o C mean temp. 0.097 max <0.095 0.097 max <0.095 0.097 max <0.097
371o C mean temp. 0.101 max <0.101 0.101 max <0.101 0.101 max <0.101
427o C mean temp. – – 0.105 max <0.105 0.105 max <0.105
482o C mean temp. – – 0.108 max <0.108 0.108 max <0.108
500o C mean temp. – – 0.110 max <0.110 – –
538o C mean temp. – – – – 0.111 max <0.111
              
Surface Burning Charteristics            
a) Flame Spread indexmax 0 0 0 0 0 0
b) Smoke density indexmax 0 0 0 0 0 0
              
*Refrence values pertain to ASTM C533 Type II for 927°C locks
** Products developed through in-house R&D. ASTM does not specify any standards		          
Calcium Silicate products offered here exceed the performance requirements of IS 9428 / 8154, as well as BS-3958 Part II &ASTM C-533. The values quoted are from laboratory tests on typical samples and represent averages.They should not be used as maxima or minima in specifications.