MOGNO
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Family: MELIACEAE (angiosperm)
Scientific name(s): Swietenia macrophylla
Swietenia humilis
Commercial restriction: species mentioned in Appendix II (see note)
Note: The three species of Swietenia (S. macrophylla, S. humilis and S. mahagoni) are listed in CITES (Convention on International
Trade in Endangered Species of wild fauna and flora), appendix II and in the European Union Regulation, appendix B. Parts
of wood and wood-made products which are regulated are defined by notes: S. humilis (all parts and products), S. mahagoni
(logs, sawing woods and veneers), S. macrophylla (logs, sawing woods, veneers and plywoods). To trade these parts and
products, the exporting or re-exporting country must emit a CITES permit or certificate and an importation permit is
compulsory to import within the EU.
WOOD DESCRIPTION
LOG DESCRIPTION
Color: red brown
Diameter: from 60 to 130 cm
Sapwood: clearly demarcated
Thickness of sapwood: from
Texture: medium
2 to
5 cm
Floats: yes
Grain: straight or interlocked
Log durability: moderate (treatment recommended)
Interlocked grain: slight
Note: Sometimes, internal stresses.
PHYSICAL PROPERTIES
MECHANICAL AND ACOUSTIC PROPERTIES
Physical and mechanical properties are based on mature heartwood specimens. These properties can vary greatly depending on origin and growth
conditions.
Mean
Std dev.
Specific gravity *:
0,60
0,07
Crushing strength *:
54 MPa
8 MPa
Monnin hardness *:
3,4
0,8
Static bending strength *:
85 MPa
13 MPa
Modulus of elasticity *:
10790 MPa
1281 MPa
Coeff. of volumetric shrinkage:
0,40 %
0,05 %
Total tangential shrinkage (TS):
3,7 %
0,8 %
Total radial shrinkage (RS):
2,6 %
0,5 %
TS/RS ratio:
Mean
Std dev.
(*: at 12% moisture content, with 1 MPa = 1 N/mm²)
1,4
Fiber saturation point:
23 %
Musical quality factor: 133,8 measured at 2333 Hz
Stability: stable
NATURAL DURABILITY AND TREATABILITY
Fungi and termite resistance refers to end-uses under temperate climate. Except for special comments on sapwood, natural durability is based on mature
heartwood. Sapwood must always be considered as non-durable against wood degrading agents.
E.N. = Euro Norm
Funghi (according to E.N. standards): class 2 - durable
Dry wood borers: durable - sapwood demarcated (risk limited to sapwood)
Termites (according to E.N. standards): class S - susceptible
Treatability (according to E.N. standards): class 4 - not permeable
Use class ensured by natural durability: class 2 - inside or under cover (dampness possible)
Species covering the use class 5: No
Note: Part of the MOGNO commercialized today in the world comes from young plantations often
constituted by woods with lower properties than the woods from natural forests. These juvenile
woods especially present an incomplete duraminisation which explains their lower natural durability
compared to the durability of more mature woods.
REQUIREMENT OF A PRESERVATIVE TREATMENT
Against dry wood borer attacks: does not require any preservative treatment
In case of risk of temporary humidification: does not require any preservative treatment
In case of risk of permanent humidification: use not recommended
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MOGNO
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DRYING
Drying rate: rapid
Possible drying schedule: 2
Risk of distortion: slight risk
Risk of casehardening: no
M.C. (%)
Risk of checking: slight risk
Green
40
30
20
15
Risk of collapse: no
Temperature (°C)
dry-bulb
wet-bulb
50
50
55
70
75
47
45
47
55
58
Air humidity (%)
84
75
67
47
44
This schedule is given for information only and is applicable to thickness lower or equal to 38 mm.
It must be used in compliance with the code of practice.
For thickness from 38 to 75 mm, the air relative humidity should be increased by 5 % at each step.
For thickness over 75 mm, a 10 % increase should be considered.
SAWING AND MACHINING
Blunting effect: normal
Sawteeth recommended: ordinary or alloy steel
Cutting tools: ordinary
Peeling: good
Slicing: nood
ASSEMBLING
Nailing / screwing: good
Gluing: correct
COMMERCIAL GRADING
Appearance grading for sawn timbers: According to NHLA grading rules (January 2007)
Possible grading: FAS, Select, Common 1, Common 2, Common 3
FIRE SAFETY
Conventional French grading: Thickness > 14 mm : M.3 (moderately inflammable)
Thickness < 14 mm : M.4 (easily inflammable)
Euroclasses grading: D s2 d0
Default grading for solid wood, according to requirements of European standard EN 14081-1 annex C (April
2009). It concerns structural graded timber in vertical uses with mean density upper 0.35 and thickness upper
22 mm.
END-USES
Cabinetwork (high class furniture)
Interior panelling
Sliced veneer
Veneer for interior of plywood
Interior joinery
Exterior panelling
Arched goods
Moulding
Current furniture or furniture components
Ship building (planking and deck)
Wood-ware
Veneer for back or face of plywood
Exterior joinery
Turned goods
Musical instruments
Light carpentry
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MAIN LOCAL NAMES
Country
Local name
Country
Local name
Bolivia
Brazil
Brazil
Cuba
Haiti
Peru
Venezuela
Spain
Italia
CAOBA
AGUANO
MOGNO
CAOBA
MAHOGANY
CAOBA
ORURA
CAOBA
MOGANO
Bolivia
Brazil
Colombia
Guatemala
Peru
Dominican Republic
Germany
France
United Kingdom
MARA
ARAPUTANGA
CAOBA
CHACALTE
AGUANO
MAHOGANY
MAHONIA
ACAJOU D'AMERIQUE
MAHOGANY
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MOGNO
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27/03/2012