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Specific Stiffness/Specific Strength
708090
100110120130140150160
400 500 600 700 800 900 1000
Specific Strength
Sp
ecifi
c S
tiffn
ess
Talbor- PropertiesTalbor- Properties
BorAlyn®
Al
Ti
Steel
Talbor®
IS LIGHTER THAN ALUMINUM, STEEL AND TITANIUM
Density
2.68 2.79
4.45
7.83
0
1
2
3
4
5
6
7
8
9
Boralyn® H15 Aluminum 7075 Titanium 3/2.5 Steel 17-4
(g/c
m3 )
POUND-FOR-POUND,Talbor®
CAN BE FORMULATED TO BESTRONGER THAN
ALUMINUM, STEEL AND TITANIUM
Specific Strength
1020
459
766
533
0
200
400
600
800
1000
1200
Boralyn® E15 Aluminum 6061 Titanium 3/2.5 Steel 17-4
(10
3 in.)
POUND-FOR-POUND,A TYPICAL Talbor® GRADEIS NEARLY 50% STIFFER
THANALUMINUM, STEEL AND TITANIUM
Specific Stiffness
146
104 102 101
020406080
100120140160
Boralyn®H15
Aluminum6061
Titanium3/2.5
Steel 17-4
Spe
cific
Mod
ulus
(10
6 in
.)
Talbor ®
PISTONSCAN IMPROVE ENGINE
EFFICIENCY AND PERFORMANCE
High Temperature High Temperature Talbor ®® Properties Properties
Talbor ®
HAS EXCELLENTABRASION
AND CORROSION RESISTANCE
Material Volume Loss from Block
(10 -6 cu in.)Contact Load 120 Pounds
Talbor H-20 3.80Talbor H-20 3.87 Steel with SPF-251 8.00
Contact Load 30 Pounds A-357-T6 Aluminum Squeeze Cast 28.16 Semi-Solid Metal Casting 21.17
Wear Test DataLubricated Pin on Ring Test (ASTM G-77)
Other Benefits of the Boralyn Wrist Pin
Thermal Conductivity: If a steel based alloy is being used the Talbor material can greatly increase the thermal conductivity.
This would lower the temperature around the combustion chamber. The pin would pull heat away from the piston to the
sump environment.The Boralyn would have an estimated CTE of 184.76 W/M K
compared to a Specialty Steel at 26 W/M K. !!!
Wear Properties: Boralyn 20% has 40% less wear than than a good Bearing grade steel.
Coeff of Friction: Our material is 30% lower than a good Bearing grade Steel.
Total Benefits=38 added horsepower@4500rpm,8 cylinder
Weight:
can reduce the weight of most pins by 40%.
This means a wrist pin that weighs 80 grams
can be reduced to 42 grams saving 38 grams of rotating
weight. Actually it would save an additional 38 grams
on the counter balance mass also. Giving a total of 76 grams of
rotating mass savings
Talbor Application: Piston Wrist Pin
Benefits
Talbor ®'SHIGH SPECIFIC STIFFNESS
IS EXCELLENTFOR
POWER TRANSFER
Water Craft Drive Shaft 60% weight Reduction
Talbor MMC Drive Shafts Improve Power Transfer
by 22%
Casting Unit able to Pressure Cast Heat Treatable Alloys
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