Red Bloodwood (Eucalyptus gummifera)

Red Bloodwood is a medium-sized Australian hardwood occurring along the coast of New South Wales and Queensland. It is commonly used in the production of round timber.

Red Bloodwood is a medium-sized Australian hardwood that grows along the coastal areas of New South Wales and Queensland.

Taking its common name from the appearance of its heartwood, Red Bloodwood ranges from a dark pink to dark red colour, with much paler sapwood. It has a course texture, with the grain of Red Bloodwood usually interlocked.

Due to the presence of concentric gum veins, Red Bloodwood is not ideally suited for use as sawn timber as gum veins – or the red-coloured kino veins – can open up during drying. This species is mainly used for round timber applications such as poles, piles and posts, however due to its attractive grain pattern, Red Bloodwood is also used for veneers and decorative paneling.

Red Bloodwood can be painted, stained and polished. It glues satisfactorily, but any surface preparation or machining should be done so immediately prior.

A highly durable and dense species, Red Bloodwood is well suited for in-ground applications such as posts, although untreated sapwood is susceptible to lyctid attack.

SHRINKAGE

  Very Low Low Medium High Very High
This is the measure of the percentage reduction in dimension from the unseasoned to 12% moisture content condition.
Tangential This is the measure of the percentage reduction
0.0
Radial
0-2

STRENGTH GROUPS

  Very High High Reasonably High Medium High Medium Reasonably Low Low Very Low
Uneasoned
S1
S2
S3
S4
S5
S6
S7
Seasoned
SD1
SD2
S3
SD4
SD5
SD6
SD7
SD8

STRESS GRADE A stress grade is defined in AS 1720 as the classification of timber for structural purposes by means of either visual or machine grading. The stress grade indicates the basic working stresses and stiffnesses to be used for structural design purposes. Measured in MPa.

  Structural No 1 Structural No 2 Structural No 3 Structural No 4 Structural No 5
Unseasoned
F17
F174
F11
F8
F7
Seasoned
F27
F22
F17
F14
F11

DENSITY PER STANDARD Seasoned density is based on moisture content of 12%. Unseasoned density is an approximation as it depends on the moisture content at the time of measurement. Measured kg/m3.

Unseasoned 1150kg/m3
Seasoned 880kg/m3

JOINT GROUP The joint group is a classification of the strength of a species in joint design. The values are from 1 (very high strength) to 6 (very low strength)

  Very High High Reasonably High Medium Low Very Low
Unseasoned
J1
J2
J3
J4
J5
J6
Seasoned
JD1
JD2
JD3
JD4
JD5
JD6

COLOUR The colour of seasoned heartwood can vary between species and often within a species. The information provided should be used as a general guide only. In most cases, the colour of sapwood is either a lighter shade of the heartwood or a white/cream colour

  White, Yellow,Pale Straw to Light Brown Pink to pink brown Light to dark red Brown, chocolate, mottled or streaky
Shade
 
 

MECHANICAL PROPERTIES

Modulus of Rupture – Unseasoned
95
Modulus of Rupture – Seasoned
89
Modulus of Elasticity – Unseasoned
12
Modulus of Elasticity – Seasoned
13
Maximum Crushing Strength – Unseasoned
51
Maximum Crushing Strength – Seasoned
65
Impact – Unseasoned
13
Impact – Seasoned
6.9
Hardness – Unseasoned
8.5
Hardness – Seasoned
13

DURABILITY

  Low Moderate Reasonably High High
 
(0-5 years)
(5-15 years)
(15-25 years)
(> 25 years)
In Ground  
 
(0-7 years)
(7-15 years)
(15-40 years)
(>40 years)
Above Ground    
  (0-20 years, usually <5) (21-40 years) (41-64 years) (>65 years)
Marine Borer Resistance  
 
Lyctid Borer Susceptibility
Susceptible
Termite Resistance
Resistant

FIRE PROPERTIES

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
EFH Ignitability
                     
             
                                       
EFH Spread of Flame Index
1
2
3
4
5
6
7
8
9
10
             
           
                                       
EFH Smoke Developed Index
1
2
3
4
5
6
7
8
9
10
   
           
                                       
Critical Radiance Flux – Lower
>2.2 and <4.5kWm 2
Critical Radiance Flux – Higher
>4.5kWm 2
Smoke Development Rating
<750
Fire Properties Group Number
1 – Non Combustible
2 – reasonably non combustible
3 – slightly combustible
4 – combustible
                   
         
                                       
Average Specific Extinction Area
<250
Bushfire Resistance
BAL 12.5, 19 and 29 – All AS3959 required applications
                                         

Botanical Name:

Eucalyptus gummifera

Common Name:

Bloodwood

AKA:

Bloodwood, Pale Bloodwood, Pink Bloodwood, Pale Kulcha Bloodwood, Small-flowered Bloodwood, Eucalyptus gummifera, Eucalyptus corymbosa, Corymbia intermedia, Eucalyptus intermedia, Corymbia polycarpa, Eucalyptus polycarpa

Type:

Hardwood

Appearance

Red Bloodwood ranges from a dark pink to dark red colour, with a much paler sapwood. It has a course texture, with the grain of Red Bloodwood usually interlocked.

Concentric gum veins, or kino veins, feature prominently and make this an attractive feature for decorative veneers and paneling.

Common Applications

While the presence of concentric gum veins is an attractive feature for decorative veneers and paneling, this also limits the other applications of Red Bloodwood to round timber. Poles, piles and posts are the most common and red bloodwood’s high durability makes it well suited for in-ground applications. Red Bloodwood can also be used for sleepers, fencing and house stumps.

Common Form

Sawn, Veneer

Workability

Red Bloodwood can be painted, stained and polished. It glues satisfactorily, but any surface preparation or machining should be done so immediately prior.

The presence of concentric gum veins means Red Bloodwood is rarely used in sawn timber form – mainly round timber and decorative veneers or paneling.

Red Bloodwood can be seasoned satisfactorily, however there is a tendency for the gum veins to open up during the drying process.

Fencing

When it comes to fencing, timber is your natural choice. A material that is durable, strong and reliable it compliments almost every outdoor landscape and environment. Clear specification, detailed installation and appropriate maintenance will see any timber fence provide a natural and lasting property boundary and back drop for years to come.

Internal Panelling

Timber paneling creates interiors as warm as they are stylish. Commonly utilising an MDF or plywood substrate, internal timber paneling is natural and versatile and comes as either solid natural timber panels or as sheets of engineered wood products

Structural Timber Posts

Timber poles are utilised in structural construction to provide support for gravity loads and resistance against lateral forces. Not only serving a structural function, timber poles provide many aesthetic benefits, with their use in construction often complementing architectural designs aimed at harmonisation with the natural environment.