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    Species Information

Yellow stringybark in its natural occurrence is commonly a tall tree 25-40 m in height and up to 1 m diameter ( dbh). On favourable sites, it may be 50 m in height and 3 m dbh. This species occurs on coastal plains and adjacent ranges in southeastern Australia from near Wollongong, New South Wales, in the north to Wilson's Promontory in Victoria. Yellow stringybark typically occurs in tall open-forest formation. Trial plantings have been established in south-west Western Australia for use as power poles.

Wood description [more info]
Heartwood is a light yellowish brown with a pinkest tinge. Sapwood is very pale brown, to 2.5 cm thick, and the texture is medium and even with grain interlocked.

Wood density [more info]
Green density is about 1100 kg/m3, air-dry density about 870 kg/m3, and basic density about 695 kg/m3.

Shrinkage [more info]
Tangential and radial shrinkage before reconditioning are 7.5 and 4.3 per cent respectively, and after reconditioning 5.5 and 3.2 per cent respectively.

Workability [more info]
With workability, the timber needs care in drying to minimise checking and splitting. It is a hard and heavy timber to work.

Durability [more info]
Durability Class based on the 1996 CSIRO assessment is 3 for decay, and 4 for decay + termites combined.

Strength group and properties [more info]
Green and dry strength groups are S3 and SD3 respectively. The more important strength properties are given in the table below.

Property

Units

Green

Dry

Modulus of Rupture

MPa

90

132

Modulus of Elasticity

MPa

14000

17000

Max Crushing Strength

MPa

44

72

Hardness

KN

6.3

8.5

Uses [more info]
Use as power poles was the original objective of planting the species in Western Australia, but flooring has great potential. Previous uses in the eastern states include general construction, posts, poles, bridge timber, sleepers and cross arms.

Availability [more info]
The timber is not readily available in Western Australia, but is common on the south coast of New South Wales.