Padauk Amboina — Identification, Uses and Properties
Pterocarpus dalbergioides DC. Leguminosae (Fabaceae)
Sawn timber appearance grading No conventional grading rules for this cabinet work species. Sawn products are graded according to final uses.
Burrs with dark marking and wavy parenchyma
HARDWOOD ASIA, OCEANIA TURNED GOODS
Taxonomy & Nomenclature
Botanical Name(s)
Pterocarpus dalbergioides DC., Pterocarpus indicus Willd. (Syn. Pterocarpus vidalianus)
Family
Leguminosae (Fabaceae)
Wood type
Hardwood
Local Names
Andaman Padauk (Andaman Islands), Honne, Venga, Vengai (India), Amboina, Angsana, Linggua, Sonokembang (Indonesia), Sena (Malaysia), Pashu-Padauk (Myanmar), Rosewood (Papua New Guinea), Manila-Padouk, Narra, Vitali (Philippines), Padauk amboina (United Kingdom), (France). (Burr Amboina, CIRAD, Montpellier)
Origin Region
Asia, Oceania
Main End Uses
Turned goods · Coffins · Shipbuilding · Cabinetry (high-end furniture) · Stairs (inside) · Veneer for back or face of plywood · Musical instruments · Veneer for interior of plywood · Panelling · Flooring · Sliced veneer · Decking · Exterior panelling · Seats · Marquetry
Wood Identification Guide
Reference Colour
Light red
Texture
Coarse
Grain
Straight or interlocked
Sapwood
Clearly demarcated
Interlocked Grain
Marked
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Log Description
Tree height
80 – 120 ft
Tree height
24 – 37 m
Diameter
50 to 100 cm cm
Sapwood Thickness
2 to 5 cm cm
Buoyancy
Floats
Log Conservation
Good
Diameter
19.7 to 39.4 in in
Sapwood Thickness
0.8 to 2 in in
Physical & Mechanical Properties
Density
0.7 g/cm³ @ 12% MC
Density
43.7 lb/ft³
Monnin Hardness
4.1
Janka Hardness
1,230 lbf
Janka Hardness
5,471 N
Volumetric Shrinkage Coefficient
0.32 % / %
Tangential Shrinkage
4 %
Radial Shrinkage
2.8 %
T/R Anisotropy Ratio
1.4
Fibre Saturation Point
20 %
Thermal Conductivity
0.23 W/m·K
Thermal Conductivity
0.133 BTU/(h·ft·°F)
Crushing Strength
51 MPa
Crushing Strength
7,397 psi
Bending Strength (MOR)
82 MPa
Bending Strength (MOR)
11,893 psi
Modulus of Elasticity (MOE)
16,600 MPa
Modulus of Elasticity (MOE)
2,407,626 psi
Durability & Treatment
Resistance to Decay
Class 1 - very durableDry Wood Borers
Class D - durable (sapwood demarcated, risk limited to sapwood)Termites
Class D - durableTreatability
Class - 3-4 - poorly or not permeable Cross sections of Pterocarpus indicusUse Class
Class 4 - in ground or fresh water contactPreservation Requirements
Against Dry Wood Borers
This wood does not require any preservation treatmentTemporary Humidification
This wood does not require any preservation treatmentNotes
This species naturally covers the use class 5 (end uses submerged in salt water, sea water or brackish water) due to its pronounced hardness. However this characteristic is of little interest for this precious species. According to the European standard NF EN 335 of May 2013, performance length might be modified by conditions in which it is used.Drying Schedule & Risks
Drying Rate
Normal to slow
Risk Distortion
No risk or very slight risk
Risk Case Hardening
No known specific risk
Risk Checking
No risk or very slight risk
Risk Collapse
No known specific risk
Suggested Schedule
Schedule #6 (see explanatory note)
Sawing & Machining
Blunting Effect
Fairly high
Machining Tools
Tungsten carbide
Suitability Peeling
Good
Suitability Slicing
Good
Notes
Blunting effect quite important due to latex and resin deposits.Assembling & Finishing
Nailing Screwing
Good but pre-boring necessary
Fire Safety & Ratings
French Grading Thick Gt14mm
M3 (moderately flammable) Thickness < 14 mm: M4 (readily flammable) Euroclass grading. D-s2, d0 Default grading for solid wood that meets requirements of European standard NF EN 14081-1 (April 2016): structural graded timber in vertical uses and ceilings with minimal mean density of 0.35 and minimal thickness of 22 mm.
French Grading Thick Lt14mm
M4 (readily flammable) Euroclass grading. D-s2, d0 Default grading for solid wood that meets requirements of European standard NF EN 14081-1 (April 2016): structural graded timber in vertical uses and ceilings with minimal mean density of 0.35 and minimal thickness of 22 mm.
Euroclass
D-s2, d0 Default grading for solid wood that meets requirements of European standard NF EN 14081-1 (April 2016): structural graded timber in vertical uses and ceilings with minimal mean density of 0.35 and minimal thickness of 22 mm.
CITES & Trade Restrictions
CITES Status
No trade restrictions
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