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P5, P9 and P91 trunnion

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lhwingking

lhwingking

Petroleum
Joined
Feb 12, 2013
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39
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IN
thread330-206212

Can I use P91 or P5 trunnion instead of P9 trunnion? Please justify.

Thank you.
 
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Justify, what? Look up the differences in mechanical properties and chemical composition to decide.
 
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Obviously it depends on the need properties in the service conditions. Do as metengr stated.
 
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