Can anyone tell me the conventions used for Trim combination numbers for material descriptions in API 602, Table 11? For example, trim 12 specifies stem material as 18Cr-8Ni-Mo. Do these imply maximum percent compositions or exact ratios? I found a spec sheet for AISI 316 that lists compositon as max 18%Cr, 10-14% Ni, and max 3% Mo. Would that satisfy Trim 12 stem requirements? Is there a better way to determine if materials meet Trim 12 requirements than looking up the specifications for each component, like a cheat sheet somewhere?
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API Valve Trims
- Thread starter KathyL
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gr2vessels
Mechanical
The ASME II Table D lists the 18Cr-8Ni-Mo as Austenitic Stailess Steel grade 316L.
Cheers,
gr2vessels
Cheers,
gr2vessels
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