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PENARAHAN - (Species of Myristicaceae)

PENARAHAN

Type : Light Hardwood

Durability : Non-Durable 5-10

Treatability : Easy to treat

flooring crates plywood partitioning packing cases cladding match boxes and splints Suitable for concrete shuttering pattern-making

Distribution

Occurs throughout swamp forests, lowland and hill forests.





General Description

Sapwood is poorly defined from the heartwood, which is light yellow-brown, brown with occasional pink tinge and dark red-purple stripes. A blood red core is found in some species. Grain is straight. Texture is rather fine to slightly coarse and even. Growth rings are distinct, demarcated by layers of terminal parenchyma. Vessels are medium-sized to moderately large, partly with exclusively simple perforations and partly with both simple and scalariform perforations, few to moderately few, solitary and in radial pairs or groups of 3 to 5, but rarelY. more than 3. Tyloses are well-developed in some vessels but sparse or absent in others, deposits are common in the coloured corewood but not obser\ted in the lighter coloured wood. Wood parenchyma is sparse and of both paratracheal and apotracheal types; the paratracheal type is generally not visible with a hand lens, while the apotracheal type appears as irregularly spaced, terminal bands. Rays are moderately fine to medium-sized, visible to the naked eye on the cross-section.

Physical properties

Air-Dry Density: 370 - 770 kg/m³

Shrinkage Radial: 2.1 - 2.2 %

Tangential: 3.1 - 3.2 %

Seasoning: Dries fairly slowly with only slight degrade

Recommended Kiln Schedule: n.a.

Mechanical Properties

Strength Group: C

Static Bending MOE: 9,380 N/mm²

MOR: 51 N/mm²

Compression Strength Perpendicular To Grain: 5.65 N/mm²

Parallel To Grain: 43.60 N/mm²

Shear Strength: 9.60 N/mm²

Working Properties

Planing: Easy                     Finish: Smooth to moderately smooth

Boring: Easy                      Finish: Smooth       

Turning: Easy                    Finish: Smooth

Nailing: Good

Usage Images

Flooring

Flooring

Flooring

Flooring

Flooring

Crates

Crates

Crates

Crates

Crates

Plywood

Plywood

Plywood

Plywood

Partitioning

Partitioning

Partitioning

Partitioning

Partitioning

Partitioning

Partitioning

Partitioning

Partitioning

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Cladding

Cladding

Cladding

Cladding

Cladding

Cladding

Cladding

Match boxes and splints

Match boxes and splints

Match boxes and splints

Suitable for concrete shuttering

Suitable for concrete shuttering

Suitable for concrete shuttering

Pattern-making

Pattern-making

Pattern-making

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