New powder for valve seats offers optimal properties at 20% lower cost

New powder for valve seats offers optimal properties at 20% lower cost

Höganäs AB has launched a new metal powder, OB1, which is specially designed to
withstand the extreme loads and temperatures that arise in engine cylinders.
Utilising the metallurgical expertise within the company, Höganäs has succeeded
in creating the first iron-chromium-based powder for this application. This
means the powder is 20 per cent less expensive than corresponding alternatives
on the market. 

In the modern engines used in all types of vehicle, the valve seat is located in
the top of the cylinder to reduce friction and wear when the valve is pressed
upwards. Around 90 per cent of the world's engine manufacturers use metal powder
for valve seat production. Valve seats are exposed to very high stresses at high
temperatures. The trend towards fuel-efficient engines and lean fuels, such as
ethanol and gas, also means that requirements are becoming more demanding. 

Previously, it has been necessary to alloy iron powder with expensive metals
such as molybdenum, tungsten or vanadium in order to achieve the right powder
properties for wear and heat resistance. Höganäs has now succeeded in achieving
the same properties using chromium as the main alloy and carbide-builder, i.e.
the metal that binds the carbon. As a result, the powder is considerably cheaper
to produce. 

OB1 was recently launched and there has been a good response from customers.
”Many customers already want to test the new material. Using OB1 they will
obtain the same high quality as they would from traditional high-speed steel
powders, but at a price that is 20 per cent lower. We are the first manufacturer
in the world to succeed in achieving sufficiently good properties from an
iron-chromium powder, and this gives us a significant competitive advantage. As
valve seats are used in nearly all engines, the potential is considerable,” says
Owe Mårs, who headed development of OB1. 

For further information, contact: 
Owe Mårs, Manager Material Expert Centre
+46 42 33 81 51
e-mail: owe.mars@hoganas.com

This is information that Höganäs AB (publ) may be obligated to make public
according to the Swedish Securities Exchange and Clearing Operations Act and/or
the Financial Instruments Trading Act. The information was submitted for
publication at 11.00 on 26 March, 2009


Höganäs AB is the world's leading producer of iron and non-ferrous metal
powders. The company has developed deep application competence based on a strong
vision of powder's possibilities to enhance efficiency and reduce resource
consumption and environmental impact in a number of areas. In cooperation with
its customers, Höganäs can thus contribute in a wide range of applications such
as the creation of future automotive components and white goods, and in water
treatment and emission control.  
The company, which was established in 1797, reported net sales of SEK 6 103
million for 2008 and is listed on Nasdaq OMX Stockholm's Mid Cap segment.
www.hoganas.com