Hard Maple
Scientific name:
Acer saccharum Marsh
Geographic origin:
United States, Canada and Europe.
- Sapwood: reddish white, very light.
- Heartwood: light red.
- Fiber: straight, occasionally wavy.
- Grain: thin-very thin.
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Capacity of being impregnated
- Sapwood: capable of being impregnated.
- Heartwood: low capacity of being impregnated.
Mechanical properties
- Resistance to static flexion 1,090 kg/cm2.
- Elasticity module 126,000 kg/cm2.
- Resistance to compression 540 kg/cm2.
Mechanization
- Sawing process: high potency is required.
- Drying process: easy and considerably slow. Risk of collapse, cementation and inside and outside crack formation.
- Planing process and other processes: risk of repelling appart from potency requirement problems.
- Gluing process: easy.
- Nailing and screwing process: pre-drilling is required in order to facilitate penetration and prevent breaks.
- Finish: easy
Physical properties
- Apparent density at 12% humidity 700 kg/m3 from semi-light wood to heavy wood.
- Dimensional stability
- - Volumetric contraction coefficient 0.49 % nervous wood.
- - Relation between contractions 2.06% tendency to deformity.
- Hardness (Chaláis-Meudon) 4.5 semi-hardwood.
Observations
- La seva principal diferència amb el tou està en el color, el maple dur té un blanc brillant