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PREN
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PREN
(
plural
PRENs
)
Acronym of
pitting resistance equivalent number
.
2008
, Hans Berns, Werner Theisen, translated by Gillian Scheibelein,
Ferrous Materials: Steel and Cast Iron
, Berlin, London:
Springer
,
→ISBN
,
page
324
:
Tungsten reinforces the effect of Mo, so that superduplex steel X2CrNiMoCuWN25-7-4 with 0.25% N, 0.8% W and 0.8% Cu reaches
PREN
> 40.
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