TUNGSTEN HEAVY ALLOYS Solutions for Aerospace
TUNGSTENHEAVY ALLOYSSolutions for Aerospace
WOLFMET – EXCELLENCE IN TUNGSTENWith 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
a single source solution for all your
tungsten heavy alloy requirements.
From the processing of raw materials
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’
experience in the end-to-end
production of tungsten heavy alloys.
We excel at turning powder into parts
and precision machining tungsten. As
a result, we can produce high quality
tungsten components to very tight
tolerances from a material
that is notoriously difficult
to machine.
As well as product and service
excellence, our experienced
engineers and professionally qualified
metallurgists are
able to provide you with guidance on
manufacturability and innovative
design requirements.
We have more than 40 years’ experience in the end-to-end production of tungsten heavy alloys.
AEROSPACE APPLICATIONSWolfmet 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.
wolfmet.com
ROTOR BLADES Helicopter rotor blades demand
perfect balance. Wolfmet can be
utilised to compensate for any
imbalances found in individual blades
during the manufacturing process
or installation.
TRIM WEIGHTS
During the last stages of assembly,
weights may be required to adjust the
final balance of the aircraft. Wolfmet
is the natural choice when working in
a restricted space. It can also offer
the advantage of reducing the total
trim weight mass because higher
density materials can be located
further from the pivot point whilst
achieving the same moment.
BUCKING BARS
Wolfmet bucking bars are ideal for
vibration damping in the riveting
process during the assembly and
repair of an aircraft.
FLIGHT CONTROL SYSTEMS
Wolfmet counter balances are used
to optimise the performance
of flight control surfaces,
such as rudders,
elevators and ailerons.
PROPELLERS
Wolfmet counterweights are
incorporated into the pitch
control system of many propeller
designs as a fail-safe device
to prevent overspeeding.
WHY USE WOLFMET? EXCELLENCE AND QUALITY FINISHED PARTS
SINTERED BARS AND BILLETS
Elevators
Spoilers
Ailerons
Winglets
Rudder
• High density; more weight in a
smaller space
• Short lead-times for flight
test ballast
• Machinable to close tolerances
• Non-toxic; non-radioactive
• Able to recycle at end-of-life
• Manufactured in the UK
• A team with over 40 years’
experience
• High volume long serial production
• One off and low volume
• Wide range of surface treatments
and finishes available
• Full traceability and certification
• 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
• AS9100 D, ISO 9001, and ISO 14001
certification
• Can be supplied in accordance with
Aerospace standards ASTM
B777-15 or AMS 7725E
• Co-ordinate measurement
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
• First Article Inspection Report in
accordance with AS9102 • Integration of Wolfmet tungsten into
larger, more complex assemblies
ASSEMBLIES
FURTHER INFORMATION IS AVAILABLE
ON REQUEST OR FROM OUR WEBSITE:
wolfmet.com
CONTACT OUR TEAM TODAY TO
DISCUSS YOUR PROJECT
REQUIREMENTS:
Tel:
+44 (0)161 864 5454E-mail:
M&I Materials Ltd, Hibernia Way, Trafford Park,Manchester, M32 0ZD, United Kingdom
T: +44 (0) 161 864 5454 F: +44 (0) 161 864 5444E: [email protected] W: wolfmet.com
Grade HA 190 HA 1925 HA 195 HE 390 HE 3925 HE 395 HE 397
ASTM B777-15 Non-magnetic Class 1
Non-magnetic Class 2
Non-magneticClass 3
MagneticClass 1
Magnetic Class 2
MagneticClass 3
Magnetic Class 4
AMS 7725E Type 1Class 1
Type 1 Class 2
Type 1Class 3
Type 2Class 1
Type 2Class 2
Type 2Class 3
Type 2Class 4
Typical Properties*
Nominal % Tungsten 90 92.5 95 90 92.5 95 97
Binder Ni/Cu Ni/Cu Ni/Cu Ni/Fe Ni/Fe Ni/Fe Ni/Fe
Nominal Density g/cm3 lb/in3
17.10.62
17.50.63
17.90.65
17.10.62
17.50.63
18.10.65
18.50.67
0.2% Proof Stress MPa
ksi675100
65095
680100
64595
64595
66095
66095
Tensile Strength MPa
ksi 805116
830120
805116
875126
900130
910131
915132
% Elongation on 25mm (1”) 7 9 4 25 27 22 12
Hardness, HRC 24 24 24 27 24 24 25
Typical Density g/cm3 Typical Density lb/in3
Aluminium 2.7 0.10
Steel 7.8 0.28
Brass 8.4 0.30
Lead 11.3 0.41
Wolfmet HE 395 18.1 0.65
Depleted Uranium 19.0 0.69
WOLFMET TUNGSTEN HEAVY ALLOY COMPARED TO OTHER MATERIALS
PROPERTIES AND STANDARDS OF WOLFMET GRADES
*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 offered 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 or any member of its group, either in sales and technical literature or in response to a specific enquiry or otherwise, is given in good faith but it is for the customer to satisfy itself of the suitability of the product for its own particular purposes and to ensure that the
product is used correctly and safely in accordance with the manufacturer’s written instructions. © M&I Materials Ltd. August 2019
Aerospace Industry Standards