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SORVA (Malouetia duckei)

Trade Name

Sorva

Scientific Name

Malouetia duckei Markgr.

Family

APOCYNACEAE

Common Names

Sorva (Brazil)

Description Of The Tree

Botanical Description

The trees are reported to yield straight, cylindrical boles with an average of 8 m in length and 45 cm in diameter.

Wood Identification

Anatomic Description Of Wood

Occasionally vessels in diagonal and/or radial pattern. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Axial parenchyma in discontinuous tangential lines.

Availability

Cites Status

Unrestricted

General Wood Description

Odor

Odor or taste are absent.

Color

The heartwood and sapwood are indistinct, the wood is light gray color.

Grain

The grain is reported to be straight or wavy.

Texture

The texture of the wood is fine.

Luster

This species is low in luster.

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.57

Air-dry Density (Weight and volume at 12%MC) (g/cm³)

0.63

Total shrinkage Tangential (Saturated to 0%MC) (%)

9.2

Total shrinkage Radial (Saturated to 0%MC) (%)

3.7

Recommended Dry Kiln Schedule

BR-B

Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)

2.5

Wood Chemical Properties

Wood Mechanical Properties

Bending Strength (MOR),12%MC (kgf/cm²)

1194

Stiffness (MOE) 12%MC (kgf/cm²)

129000

Compression parallel to fiber 12%MC (kgf/cm²)

604

Compression perpendicular to fiber 12%MC (kgf/cm²)

99

Shear strength radial 12%MC (kgf/cm²)

149

Janka hardness (side) 12%MC (kgf)

603

Janka hardness (end grain) 12%MC (kgf)

832

Workability

Planing

Planing operations are reported to be easy, but the finishing is fair because of torn surfaces.

Turning

30

Boring

Boring operations are reported to be easy, but the finishing is fair.

Sanding

Sanding operations are reported to be easy, with very good finishing.

Finishing

Wood of this species is easy to finish.

Response To Hand Tools

This species is moderately difficult to cut with hand tools.

REFERENCED USES

End Uses Summary

EXTERIOR GENERAL, HOUSING GENERAL, FURNITURE AND CABINETS, TURNING, cutlery, TOOLS, tool handles

Exterior General
  • 1 - Tabela de resultados de ensaios fisicos e mecanicos
General Housing
  • 10 - Silica in Timbers
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Turning
  • 30 - Embassy of Honduras in Japan
Knife Handles
  • 33 - Embassy of Gabon in Japan
Tools
  • 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
  • 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)

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