Black locust
Robinia pseudacacia
Green density
Average value
761 kg/m³
Total degree of shrinkage
axial
0,1 %
radial
3,9 - 4,4 %
tangential
5,8 - 6,9 %
Differential swelling
radial
0,24 %%
tangential
0,38 %%
Other characteristics
Thermal conductivity
0,14 W/mK
Equilibrium of moisture
content (20°/37%)
content (20°/37%)
7,3 %
Equilibrium of moisture
content (20°/83%)
content (20°/83%)
14,8 %
Hardness
Brinell hardness HB,0
74 N/mm²
Brinell hardness HB,90
48 N/mm²
Elastic properties
Flexural modulus of elasticity
13600 N/mm²
Strength properties
Flexural strength
150 N/mm²
Tensile strength
150 N/mm²
Compression strength
75 N/mm²
Natural durability
Fungi
1-2, very durable
Anobium
S, susceptible
Treatability
Heartwood
4, virtually impermeable
Sapwood
1, highly permeable
Characteristic values determined from wood samples with a moisture content of 12%.
Of all our indigenous trees, the Robinia Tree (Robinia pseudoacacia) has the hardest and heaviest wood.
The wood has an olive-green colour and is very durable.
The favourable technical properties of robinia wood make a wide range of uses possible.
It is especially used for outside constructions which come into contact with water or soil, and for parquet floors, windows and doors.
The wood has an olive-green colour and is very durable.
The favourable technical properties of robinia wood make a wide range of uses possible.
It is especially used for outside constructions which come into contact with water or soil, and for parquet floors, windows and doors.
