Comparison of properties with North American and Japanese wood
Comparison of properties with North American and Japanese wood
SPECIES |
COMPRESSION STRENGTH |
TENSIONAL STRENGTH |
MODULUS OF ELASTICITY |
BREAKING STRENGTH |
DENSITY |
||
---|---|---|---|---|---|---|---|
Commercial/scientific name |
In the direction of the grain N/mm2 |
Perpendicular to the direction of the grain N/mm2 |
In the direction of the grain N/mm2 |
Bent N/mm2 |
N/mm2 |
N/mm2 |
kg/m3 |
FINNISH |
|||||||
Spruce/Pinea abies |
39 |
5,3 |
116 |
87 |
10.000 |
6,8 |
470 |
Pine/Pinus silvestris |
50 |
7,0 |
95 |
91 |
10.900 |
9,1 |
540 |
NORTH AMERICA |
|||||||
Douglas Fir/Pseudot menziessii |
43 |
5,9 |
95 |
66 |
11.300 |
7,2 |
520 |
Giant Redwood/Sequoia sempervirens |
30 |
4,1 |
70 |
50 |
6.800 |
6,8 |
430 |
Hemlock/Tsuga heterophylla |
44 |
5,2 |
69 |
79 |
10.500 |
8,2 |
480 |
Pitch pine/Pinus palustris |
59 |
6,9 |
105 |
78 |
10.900 |
9,8 |
680 |
Larch/Larix decidua |
50 |
6,5 |
97 |
90 |
12.500 |
8,2 |
470 |
JAPANESE |
|||||||
Sugi Cryptomeria japonica |
35 |
|
90 |
65 |
7.500 |
6,0 |
380 |
Hinoki Chamaecyparis obtusa |
40 |
|
120 |
75 |
9.000 |
7,5 |
440 |
Akamatsu Pinus densiflora |
45 |
|
140 |
90 |
11.500 |
9,5 |
520 |
Kuromatsu Pinus thunbergii |
45 |
|
140 |
85 |
10.500 |
9,0 |
540 |
Goyamatsu Pinus parviflora |
35 |
|
80 |
70 |
7.000 |
8,0 |
450 |
The values for strength and elasticity are averages and based on measurements of flawless test pieces with a 12% level of moisture. The values are not meant as design values, for which values given in national standards must be used.