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Long products
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VALVE STEELS for combustion
engines
These steels are tipically used for valves requiring:
- strenghts with a service temperature in the 700C°
to 800 C° range
- oxidation resistance to chemical etching in their
application environment particularly to lead and to burnt gas
- they need to show sufficient resistance( without
strain) to the stress they are subjected to during the different strokes
of combustion cycle
| induction or exhaust valves for
combustion engines |
| (click
on Category for details) |
 Martensitic
(Al Cr-Si ) application in induction valves and stems of bimetallic exhaust valves |
Austenitic
(Al-Cr-Ni-W/Mo-N) application in exhaust valves (subjected to corriosion caused by the contact with hot gasses) or in heads of bimetallic valves. These are often austenitic steels stiffened by precipitation hardening |
Nickel based alloys
application in exhaust valves or in heads of bimetallic valves for marine or heavy duty engines |
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Valves
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Valves
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