White mahogany is a premium Australian hardwood used for structural, interior and exterior applications.
Yellow Stringybark (Qld), White Stringybark, Narrow-leaved White Mahogany, Eucalyptus Umbra, Eucalyptus tenuipes
Eucalyptus acmenoides
Shrinkage
Very Low | Low | Medium | High | Very High | |
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Tangential : |
5.40%
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Radial : |
2.80%
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Unit Movement Tangential: |
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Unit Movement Radial: |
Strength Group
Very High |
High |
Reasonably High |
Medium High |
Medium |
Reasonably Low |
Low |
Very Low |
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Unseasoned: |
S1 |
S2 |
S3 |
S4 |
S5 |
S6 |
S7 |
S8 |
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Seasoned: |
SD1 |
SD2 |
SD3 |
SD4 |
SD5 |
SD6 |
SD7 |
SD8 |
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Stress Grade
Structural No. 1 |
Structural No. 2 |
Structural No. 3 |
Structural No. 4 |
Structural No. 5 |
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Unseasoned: |
F27 |
F17 |
F14 |
F11 |
F8 |
Seasoned: |
F27 |
F22 |
F17 |
F14 |
F11 |
Density per Standard
Seasoned: |
950kg/m3
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Unseasoned: |
1150kg/m3
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Joint Group
Very High |
High |
Reasonably High |
Medium |
Low |
Very Low |
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Unseasoned: |
J1 |
J2 |
J3 |
J4 |
J5 |
J6 |
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Seasoned: |
JD1 |
JD2 |
JD3 |
JD4 |
JD5 |
JD6 |
Colour
White, yellow, pale straw to light brown | Pink to pink brown | Light to dark red | Brown, chocolate, mottled or streaky | |
Mechanical Properties
Modulus of Rupture - Unseasoned: |
101
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Modulus of Rupture - Seasoned: |
130
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Modulus of Elasticity - Unseasoned: |
16
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Modulus of Elasticity - Seasoned: |
17
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Maximum Crushing Strength - Unseasoned: |
49
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Maximum Crushing Strength - Seasoned: |
76
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Impact - Unseasoned: |
17
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Impact - Seasoned: |
14
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Toughness - Unseasoned: |
Medium - 15 - 24 Nm
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Toughness - Seasoned: |
Medium - 15 - 24 Nm
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Hardness - Unseasoned: |
8.9
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Hardness - Seasoned: |
10
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Durability
Low | Moderate | Reasonably High | High | |
(0 - 5 yrs) | (5 - 15 yrs) | (15 - 25 yrs) | (more than 25 yrs) | |
In-Ground: |
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(0 - 7 yrs) | (7 - 15 yrs) | (15 - 40 yrs) | (More than 40 yrs) | |
Above ground: |
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(0 - 20 yrs, usually < 5) | (21 - 40 yrs) | (41 - 64 yrs) | (More than 60 yrs) | |
Marine Borer Resistance: |
Lyctid Borer Susceptibility: |
Not Susceptible |
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Lyctid Borer Susceptibility - Other: |
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Termite Resistance: |
Resistant
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Fire Properties
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
EFH Spread-of-Flame Index: |
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EFH Smoke-Developed Index: |
1 - non-combustible | 2 - reasonably non-combustible | 3 - slightly combustible | 4 - combustible | |
Fire Properties Group |
Group Number - Other: |
3 if used on MDF or particleboard ≥12mm; veneer thickness 0.6-0.85mm
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Average Specific Extinction Area: |
<250
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Bushfire Resistance: |
BAL 12.5 and 19 – All AS3959 required applications
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