Data For: 
Kempas  (Koompassia malaccensis)   
 
Common Names
Ampas
Bengaris
Berniung
Garis
Gemeris
Goraci
Hampas
Impas
Inggeris
Kampas
Kempas
Menggaris
Ngeris
Ngeris abang
Nyari
Pa
Pah
Paniasi
Sabanting
Thongbueng
Toemaling
Tumaling
 
Kempas Numerical Values
Numerical Data
                       Item    Green      Dry English  
 
           Bending Strength    12350    16773 psi                                 
          Crushing Strength      892     1068 psi                                  
                    Density                55 lbs/ft3                             
                   Hardness              1797 lbs                                 
            Impact Strength       46       56 inches                               
  Maximum Crushing Strength     7485     9834 psi                                 
          Shearing Strength              1598 psi                                 
             Static Bending     8310     9780 psi                                  
                  Stiffness     2340     2655 1000 psi                            
       Work to Maximum Load       12       15 inch-lbs/in3                        
           Specific Gravity     0.64     0.76                                      
                     Weight       53       51 lbs/ft3                             
           Radial Shrinkage      4.5          %                                   
       Tangential Shrinkage        6          %                                    
       Volumetric Shrinkage       14          %                                   
 
                       Item    Green      Dry Metric  
 
           Bending Strength      868     1179 kg/cm2                              
          Crushing Strength       62       75 kg/cm2                              
                    Density               881 kg/m3                              
                   Hardness               815 kg                                  
            Impact Strength      116      142 cm                                  
  Maximum Crushing Strength      526      691 kg/cm2                              
          Shearing Strength               112 kg/cm2                              
             Static Bending      584      687 kg/cm2                              
                  Stiffness      164      186 1000 kg/cm2                         
       Work to Maximum Load     0.84     1.05 cm-kg/cm3                           
           Specific Gravity     0.64     0.76                                     
                     Weight      849      817 kg/m3                              
           Radial Shrinkage      4.5          %                                   
       Tangential Shrinkage        6          %                                   
       Volumetric Shrinkage       14          %