
Cay (Irvingia oliveri)
Family: Simaroubaceae
Common names: Cay, Chambak, Tuang-thayet
Distributed in: Burma, Cambodia, India (Oceania and S.E. Asia)
Common uses: Heavy construction, Light construction
Environment profile: Vulnerable
Tree size: Tree height is 10-20 m
Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeand the sapwoodColor not distinct from heartwood, White.The grain isStraight, the textureMediumand the lusterHigh
Natural durability: Perishable, Susceptible to attack from termites (Isoptera)
Ease of Drying: Slowly
Boring: Fairly easy to very easy
Carving: Very Good to Excellent Results
Cutting Resistance: Easy to saw
Gluing: Very Good to Excellent Results
Mortising: Fairly Easy to Very Easy
Moulding: Fairly Easy to Very Easy
Movement in Service: Fairly Easy to Very Easy
Nailing: Fairly Easy to Very Easy, Very Good to Excellent
Planing: Fairly Easy to Very Easy
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Responds Readily
Routing recessing: Fairly Easy to Very Easy
Screwing: Fairly Easy to Very Easy, Very Good to Excellent Results; Turning: Fairly Easy to Very Easy
Polishing: Very Good to Excellent; Staining: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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| Item |
Green |
Dry |
Metric |
| Specific Gravity |
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| Density |
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kg/m3 |
| Bending Strength |
1212 |
1765 |
kg/cm2 |
| Crushing Strength |
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kg/cm2 |
| Hardness |
|
1333 |
kg |
| Impact Strength |
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cm |
| Shearing Strength |
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kg/cm2 |
| Stiffness |
|
|
1000 kg/cm2 |
| Tangential Shrinkage |
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% |
| Radial Shrinkage |
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% |
| Weight |
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|
kg/m3 |
| Maximum Load |
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cm-kg/cm3 |
| Toughness |
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cm-kg |
| Static Bending |
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kg/cm2 |
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 |  |  |  | | Item | Green | Dry | English | | Bending Strength | 17241 | 25113 | psi | | Hardness | | 2940 | lbs | | Maximum Crushing Strength | 5408 | 8171 | psi | |
Max. crushing strength = medium Max. crushing strength = high Hardness (side grain) = very hard Bending strength (MOR) = very high Bending strength (MOR) = high
Anon,1963,Indian Woods: Their Identification, Properties and uses. Vol.II Linaceae,to Moringaceae,Manager of Publications, Delhi, IndiaFrance - Comite Nacional des Bois Coloniaux,1931,Etude Physique et Mecanique des Bois Coloniaux,Assoc. Colonies-Sciences & Comite National des Bios Coloniaux, Paris,,FranceSallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.T
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