[목재정보] 너도밤나무 (Beech, Fagus grandfolia)

너도밤나무 American beech (Fagus grandifolia)

Other names: none

분포 Distribution

Throughout Eastern USA, commercial concentration is in the Central and Middle Atlantic States.

특성 General description

변재는 붉은 끼를 띤 백색이며, 심재는 연하거나 짙은 붉은 갈색이다. 미국산 너도밤나무는 유럽산 보다 더 진한 경향이 있다. 목재는 균일한 질감과 똑바른 나무결을 가지고 있다.
The sapwood of American beech is white with a red tinge, while the heartwood is light to dark reddish brown. American beech tends to be slightly darker and less consistent than European beech. The wood is generally straight grained with a close uniform texture.

작업성능 Working properties

너도밤나무는 수공구나 목공기계로 쉽게 작업이 가능하다. 못작업이나 접착작업도 잘되며, 마감이나 광택을 내기에도 쉬운 수종이다. 이 수종은 건조는 빠르나, 건조중에 변형되거나 갈러지거나, 표면에 하자가 생기기가 쉽다. 따라서 수축팽창의 위험성은 크다.
American beech works readily with most hand and machine tools. It has good nailing and gluing properties and can be stained and polished to a good finish. The wood dries fairly rapidly but with a strong tendency to warp, split and surface check. It is subject to a large shrinkage and moderate movement in performance.

Machining Nailing Screwing Gluing Finishing

Physical properties

American beech wood is classed as heavy, hard, strong, high in resistance to shock and highly suitable for steam bending.

Specific Gravity: 0.64 (12% M.C.)
Average Weight: 721 kg/m³ (12% M.C.)
Average Volumetric Shrinkage: 13.0% (Green to 6% M.C.)
Modulus of Elasticity: 11,859 MPa
Hardness: 5782 N

Durability

Rated as non-resistant to heartwood decay, and liable to attack by common furniture beetle and longhorn beetle, but permeable for preservation.

Availability

USA: Mostly limited to lower grades.
Export: Very limited, due to low demand and wide availability of European beech.

Main uses

Furniture, doors, flooring, internal joinery, panelling, brush handles and turning. It is particularly suitable for food containers as there is no odour or taste