2.3 



3.2 



2.3 



6.3 



5.3 



6.0 



8.9 



8.4 



9.6 



551 



747 



540 



321 



376 



280 



451 



540 



800 



62 



92 



55 



54.08 



53.97 



59.71 



(70.68) 



(40.08) 



(64.61) 



148 S. K. HYUN 



Resin canals are present, axial and radial, and are conspicuous, but the 

 wood has no characteristic resinous odor or taste. The average fiber 

 length and width are 5.33 mm and 57.6 y respectively. The cellulose 

 content is 53.97% (a-cellulose = 40.08). 



The wood of Armand pine is moderately light with a specific gravity 

 of 0.46 (oven dry), soft and very stiff, moderately strong in bending 

 with a bending strength of 747 kg/cm 2 , weak in endwise and sidewise 

 compressive strength (376 kg/ cm 2 and 56 kg/cm 2 respectively) . It is also 

 weak in tension parallel to the grain (540 kg/cm 2 ) and shearing (92 kg/cm 2 ) 

 With an average shrinkage of 3.21% in the radial plane, 5.32% in the 

 tangential plane, and 9.3% in volume, the wood is easy to kiln-dry and 

 stays in place well after seasoning. The wood is moderately easy to work 

 with tools. In decay resistance, it is rated as intermediate to fairly 

 durable. 



The wood is used principally for construction, furniture, matches, 

 papermaking (limited to small, round timbers), boxes and crates, turpentine 

 and rosin. 



The physical properties of Korean pine, Armand pine, and eastern white 

 pine are compared in Table 1. 



Table 1. Comparison of wood properties of three white pines 



Properties Pinus koraiensis Pinus armandii Finns strobus 



Specific gravity 

 (oven dry) 0.45 0.46 0.37 



Shrinkage (%) 

 Radial 

 Tangential 

 Volume 



Bending strength (kg/cm 2 ) 



Compressive strength (kg/cm 2 ) 



Tensile strength (kg/cm 2 ) 



Shearing strength (kg/cm 2 ) 



Cellulose content (%) 



(a-cellulose) 



Chosen Govt. -Gen., 1940. 

 Chinese Forest. Assoc, 1967. 

 Kishima, Okamoto, and Hayashi, 1962 



