TUNGSTEN
HEAVY ALLOYS
Solutions for Aerospace
WOLFMET – EXCELLENCE IN TUNGSTEN
With approvals to supply Wolfmet tungsten heavy alloys to a number of principal aircraft manufacturers,
M&I Materials is recognised as one of the World’s leading aerospace tungsten providers.
Choosing Wolfmet gives you
tungsten components to very tight
able to provide you with guidance on
a single source solution for all your
tolerances from a material
manufacturability and innovative
tungsten heavy alloy requirements.
that is notoriously difficult
design requirements.
From the processing of raw materials
to machine.
to the precision machining of finished
parts, we handle it all. We also supply
sintered tungsten blocks to
customers who prefer to
finish machine themselves.
We have more than 40 years’
We have more than 40 years’
experience in the end-to-end
production of tungsten
heavy alloys.
experience in the end-to-end
production of tungsten heavy alloys.
As well as product and service
We excel at turning powder into parts
excellence, our experienced
and precision machining tungsten. As
engineers and professionally qualified
a result, we can produce high quality
metallurgists are
AEROSPACE APPLICATIONS
Wolfmet tungsten heavy alloy is most commonly used to balance static and dynamic components and reduce
vibrations on aircraft. In particular, a high concentration of weight can easily be added to a confined space to gain
the optimum control and stability of moving parts. In some cases less weight can actually be used because Wolfmet
tungsten is a denser material and so provides a better balancing moment.
ROTOR BLADES
BUCKING BARS
Helicopter rotor blades demand
Wolfmet bucking bars are ideal for
perfect balance. Wolfmet can be
vibration damping in the riveting
utilised to compensate for any
process during the assembly and
imbalances found in individual blades
repair of an aircraft.
during the manufacturing process
or installation.
Spoilers
FLIGHT CONTROL SYSTEMS
Wolfmet counter balances are used
TRIM WEIGHTS
to optimise the performance
During the last stages of assembly,
of flight control surfaces,
weights may be required to adjust the
such as rudders,
final balance of the aircraft. Wolfmet
elevators and ailerons.
Ailerons
is the natural choice when working in
a restricted space. It can also offer
PROPELLERS
the advantage of reducing the total
Wolfmet counterweights are
trim weight mass because higher
incorporated into the pitch
density materials can be located
control system of many propeller
further from the pivot point whilst
designs as a fail-safe device
achieving the same moment.
to prevent overspeeding.
WHY USE WOLFMET?
EXCELLENCE AND QUALITY
FINISHED PARTS
• High density; more weight in a
• AS9100C, ISO 9001, and ISO
• High volume long serial production
smaller space
14001 certification
• One off and low volume
• Short lead-times for flight
• Can be supplied in accordance with • Wide range of surface treatments test ballast
Aerospace standards ASTM and finishes available
• Machinable to close tolerances
B777-15 or AMS 7725E
• Non-toxic; non-radioactive
• Co-ordinate measurement • Able to recycle at end-of-life
• Manufactured in the UK
• A team with over 40 years’
experience
machines providing 3D inspection of close tolerances on complex geometries
• Integration into customer supply chains e.g. vendor managed inventory
• Penetrant Flaw Detection and Ultrasonic Non Destructive Testing
Winglets
Elevators
Rudder
• Full traceability and certification
SINTERED BARS AND BILLETS
• Round bars - standard and custom sizes from stock or made to order
• Flat bars and billets - made to order with short lead times
• Low minimum order quantities on all made to order bars and billets
• First Article Inspection Report in ASSEMBLIES
accordance with AS9102
• Integration of Wolfmet tungsten into
larger, more complex assemblies
wolfmet.com
PROPERTIES AND STANDARDS
OF WOLFMET GRADES
Grade
HA 190
HA 193
HA 195
HE 390
HE 3925
HE 395
HE 397
Non-magnetic
Class 1
Non-magnetic
Nominal Class 2
Non-magnetic
Class 3
Magnetic
Class 1
Magnetic
Class 2
Magnetic
Class 3
Magnetic
Class 4
Type 1
Class 1
Type 1
Nominal Class 2
Type 1
Class 3
Type 2
Class 1
Type 2
Class 2
Type 2
Class 3
Type 2
Class 4
90
93
95
90
92.5
95
97
Ni/Cu
Ni/Cu
Ni/Cu
Ni/Fe
Ni/Fe
Ni/Fe
Ni/Fe
17.10
0.62
17.60
0.64
17.90
0.65
17.10
0.62
17.50
0.63
18.10
0.65
18.50
0.67
MPa
ksi
675
100
650
95
680
100
645
95
645
95
660
95
660
95
MPa
ksi
805
116
830
120
805
116
875
126
900
130
910
131
915
132
% Elongation on 25mm (1”)
7
9
4
25
27
22
12
Hardness, HRC
24
24
24
27
24
24
25
Aerospace Industry Standards
ASTM B777-15
AMS 7725E
Typical Properties*
Nominal % Tungsten
Binder
Nominal Density
g/cm3
lb/in3
0.2% Proof Stress
Tensile Strength
*Properties may vary according to size and shape of part and production conditions. Figures shown are rounded and are typical for coupons (to fig.19 of ASTM E8) measured in accordance
with ASTM B777-15; they are o ered without warranty or guarantee. Values may be altered without notice and do not constitute a specification and should not be used for design purposes
without reference to M&I Materials Ltd. It is for the customer to satisfy itself of the suitability of the products for its own particular purposes and environmental conditions.
Any recommendation or suggestion relating to the use, storage, handling or properties of the products supplied by M&I Materials Ltd either in sales and technical literature or in response
to a specific enquiry or otherwise, is given in good faith. It is for the customer to satisfy itself of the suitability of the product for its own particular purposes © M&I Materials Ltd January 2017
FURTHER INFORMATION IS AVAILABLE
WOLFMET TUNGSTEN HEAVY ALLOY COMPARED TO
OTHER MATERIALS
Typical Density g/cm3
Typical Density lb/in3
ON REQUEST OR FROM OUR WEBSITE:
wolfmet.com
CONTACT OUR TEAM TODAY TO
Aluminium
2.7
0.10
DISCUSS YOUR PROJECT
Steel
7.8
0.28
REQUIREMENTS:
Brass
8.4
0.30
Lead
11.3
0.41
Wolfmet HE 395
18.1
0.65
Depleted Uranium
19.0
0.69
M&I Materials Ltd, Hibernia Way, Tra ord Park,
Manchester, M32 0ZD, United Kingdom
T: +44 (0) 161 864 5454 F: +44 (0) 161 864 5444
E: [email protected] W: wolfmet.com
Tel:
+44 (0)161 864 5454
E-mail:
[email protected]