Statement of material properties of Kerto LVL S-beam

Material properties of Kerto® LVL S-beam in Australia

Kerto LVL S-beam material values were tested and analysed by Eurofins Expert Services Oy The European and ASTM test methods used are in accordance with the Australian test methods according to AS/NZS 4357.2 and AS/NZS 4063.1.

The design characteristic values for use with AS 1720.1 are given in the below table Evaluation of design characteristic values was done according to AS/NZS 4063.2. The joint group was defined according to the standard AS 1649 based on density only The stress grade was defined according to AS/NZS 4357.0 and AS 1720.1 Kerto LVL S-beam has also certificates 2012001020-1 and 2012001020-2 granted by accessUTS Pty Limited but these certificates will be updated soon Design

5th

bending strength, parallel to grain, edgewise (cross section depth h = 300 mm)

For other cross section depths the design characteristic value is multiplied by

5

percentile tension strength, parallel to grain (cross section width (larger crosssectional dimension) h = 150 mm)

For other cross section widths the design characteristic value is multiplied by

5

Statement 1 (3)

Wood 23 7 2020

Metsä

characteristic property (thickness

Value

range 30 – 75 mm)

percentile

��ℎ =(300 ℎ )

when h ≥

mm ��ℎ =1,20 when h < 90 mm A 42,0 MPa 5th percentile bending strength, parallel to grain, flatwise B 50,0 MPa

0,15

90

th

��ℎ =(150 ℎ )0,15 when h ≥ 80 mm ��ℎ =1,10 when h < 80 mm D 35,0 MPa 5th percentile tension strength, perpendicular to grain, edgewise E 0,8 MPa 5th percentile compression strength, parallel to grain G 33,0 MPa Mean bearing strength, perpendicular to grain, edgewise (2,0 mm deformation criterion) H 10,0 MPa Mean bearing strength, perpendicular to grain, flatwise (2,0 mm deformation criterion) I 4,9 MPa 5th percentile shear strength, parallel to grain, edgewise J 4,2 MPa 5th percentile shear strength, parallel to grain, flatwise K 2,3 MPa Mean apparent modulus of elasticity, parallel to grain ABDG 13200 MPa Mean modulus of rigidity, parallel to grain, edgewise J 600 MPa Mean modulus of rigidity, parallel to grain, flatwise K 600 MPa

th percentile shear at joint strength, edgewise - 5,0 MPa

th percentile shear at joint strength, flatwise - 3,0 MPa

Tolerances

Henrik Söderström

Juha Kasslin SVP, Supply Chain Management VP, Product Management Metsä Wood Metsä Wood

Statement 2 (3)

density

Metsä Wood 23 7 2020 Joint group - JD4 Stress grade - F14 Mean

- 510 kg/m3

………………………………………… …………………………………………

Definition of strength and stiffness orientations

Statement 3 (3)

Wood 23 7 2020

Metsä

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