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ROSEWOOD (Dalbergia cultrata)
Trade Name
Rosewood
Scientific Name
Dalbergia cultrata Graham
Family
LEGUMINOSAE
Common Names
Indian Cocobolo; Burma blackwood; Yindaik (Myanmar)
Description Of The Tree
Botanical Description
Small to medium size tree, it rarely exceeds 18 m in length and 150 cm in girth. The bole is usually fluted.
Wood Identification
Anatomic Description Of Wood
Vessels per mm2 5 to 20. Wood diffuse porous. Vessels exclusively solitary (over 90%). Colored deposits in heartwood vessels. Tangential diameter of vessel lumina 100 micras or less (very small). Axial parenchyma bands more than 3 cells wide. Rays storied. Ray width 1 to 3 cells.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is dark purplish-brown with very dark brown to black streaks and is clearly demarcated from the 3-5 cm thick whitish to yellowish sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
1
Grain
The grain is straight, sometimes wavy.
Texture
The texture is moderately fine.
Natural Durability
The wood is durable. Graveyard tests showed an average life in contact with the ground of 7.3 years under tropical conditions.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Resistance To Impregnation
It is difficult to treat with preservatives using the vacuum-pressure method.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.97
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
1.14
Total shrinkage Tangential (Saturated to 0%MC) (%)
9.2
Total shrinkage Radial (Saturated to 0%MC) (%)
5.5
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.7
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
805
Stiffness (MOE) 12%MC (kgf/cm²)
112498
Compression parallel to fiber 12%MC (kgf/cm²)
359
Janka hardness (side) 12%MC (kgf)
804
Workability
Sawing
Sawing of this wood is reported to be easy to fair.
Rotary Veneer Cutting
This timber is reported to be suitable for lamination.
Sliced Veneer
This timber is reported to be suitable for lamination.
Machining
Machining of this species is reported to be easy.
Planing
This species is easy to plane.
Turning
30
Finishing
It has a good finishing.
Polishing
Polishing of this wood is easy.
Response To Hand Tools
This species has a fair to poor response to hand tools.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, FURNITURE AND CABINETS, luxury furniture, PLYWOOD AND VENEER, Decorative veneer, TURNING, SPORTS, TOOLS, tool handles, agricultural tools, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, handicrafts, axle, moldings
General Housing
- 10 - Silica in Timbers
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Furniture, Luxury
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Turning
- 30 - Embassy of Honduras in Japan
Sports
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Agricultural Tools
- 44 - Atlas of Peruvian Woods
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Other & Musical Instruments
- 63 - Madeiras do Brazil II
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Axles
- 73 - Handbook of Hardwoods
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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