Alloy choice to comply with A105?
Alloy choice to comply with A105?
(OP)
We are fabricating an ANSI A105 flange, 6"-900# class RFWN with engineered modifications.
I have been told that A105 requires a carbon manganese alloy similar to AISI 1330, but with less manganese.
What stock alloy is appropriate?
Regards,
Colin, UET Mixers Inc.
I have been told that A105 requires a carbon manganese alloy similar to AISI 1330, but with less manganese.
What stock alloy is appropriate?
Regards,
Colin, UET Mixers Inc.





RE: Alloy choice to comply with A105?
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RE: Alloy choice to comply with A105?
A266 Grade 2 has similar mechanical properties to A105.
Also, Grade III of ASTM A765, 'Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements' has chemistry & mechanical properties similar to A105.
Caveat: A105 doesn't mention vacuum induction melting (allowed for the 2 other specs. per Melting Practices in A788). A105 explicitly required fully killed steel which seems to be met by referenced Melting Practices in A788.
RE: Alloy choice to comply with A105?