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:

wolfmetsales@mimaterials.com

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: wolfmetsales@mimaterials.com 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