Wood inspector

Sei in: home » database dei legni
  • Decrease font size
  • Default character size
  • Encrease font size


Fornitori

Ditta 5
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 4
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 3
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 2
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 1
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 
Ditta 0
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

Sito web: www.pippo.it
E-mail: 

Contatti

database dei legni


Ask informationsPrint pageSend to a friend
Grootblaarsterkastaiing
Grootblaarsterkastaiing (Sterculia quinqueloba)

Family: Sterculiaceae

Common names: Grootblaarsterkastaiing, Large leaved star chestnut, Large leaved sterculia, Mbalamwezi, Mguwa, Mkungulanga, Mperamusi, Muhembeti, Mwingirangidengi

Distributed in: South Africa, Tanzania, Zambia, Zimbabwe (Africa)

Common uses: Cabinetmaking, Flooring, Joinery, Light construction, Mine timbers, Piling, Plywood corestock, Plywood, Pulp/Paper products, Turnery, Veneer

Tree size: Trunk diameter is 150-200 cm

Colors: the heart isWhite, Yellowand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureMedium to coarseand the lusterLow

Natural durability: Resistant to termites, Susceptible to attack from powder post (Lyctid & Bostrychid) beetles

LightInduced Color Change: Darker

Kiln Schedules: UK=A US=T2D4/T2D3 Fr=1

Kiln Drying Rate: Very slow (>28 days for boards < 32 mm, to >84 days for boards >= 63 mm)

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Moderately Difficult to Difficult

Tree Identification: Bole/stem form is straight

Boring: Moderately easy

Cutting Resistance: Moderate to saw

Moulding: Good finishing

Movement in Service: Good finishing

Planing: Planes well, to a good finish

Resistance to Impregnation: Sapwood is permeable

Resistance to Splitting: Poor

Response to hand tools: Fairly Difficult to Difficult to Work


Polishing: Fair to Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 753 kg/m3
Bending Strength 429 674 kg/cm2
Crushing Strength 275 449 kg/cm2
Hardness 451 kg
Impact Strength cm
Shearing Strength 97 kg/cm2
Stiffness 77 90 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 2 %
Weight 737 592 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 6111 9589 psi
Density 47 lbs/ft3
Hardness 995 lbs
Maximum Crushing Strength 3916 6397 psi
Shearing Strength 1391 psi
Stiffness 1103 1291 1000 psi
Weight 46 37 lbs/ft3
Radial Shrinkage 2 %
Tangential Shrinkage 5 %

Density (dry weight) = 46-52 lbs/cu. ft.
Shrinkage, Radial = very small
Bending strength (MOR) = low
Max. crushing strength = medium
Shrinkage, Tangential = very small
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = very low
Shrinkage, Tangential = moderate
Density (dry weight) = 53-60 lbs/cu. ft.
Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = small
Shrinkage, Radial = small
Shearing strength (parallel to grain) = very low
Modulus of Elasticity (stiffness) = low
Hardness (side grain) = soft

Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchPalgrave, K.C.,1977,Trees of Southern Africa,Cape Town South AfricaTakahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Tanzania - Timber Marketing Co. Ltd.,1978,Timber from TanzaniaTanzania Forest Division,1966,Kiln Drying Schedules for Tanzania Timbers Technical Note no.38,Tanzania Forest Div. Util. Sec. MoshiTanzania Forestry Department,1963,Timbers of Tanganyika - Sterculia quinqueloba,Tanzania Forestry Department, Utilisation Section, Moshi - Timbers of,Tanganyika
*Come interpretare i dati (manleva su eventuali imprecisioni)