Difference between F55 and UNS 32760
Difference between F55 and UNS 32760
(OP)
Hi,
We have an on-going projects which requires valves to be F55. Our vendor offered UNS32760 which is not accepted. What is the difference between F55 (forged material) and UNS32760(Forged bar)?
Thanks
We have an on-going projects which requires valves to be F55. Our vendor offered UNS32760 which is not accepted. What is the difference between F55 (forged material) and UNS32760(Forged bar)?
Thanks





RE: Difference between F55 and UNS 32760
What spec is your document requiring?
It is the product spec that matters most, not what you call the grade (you may be wrong).
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P.E. Metallurgy, Plymouth Tube
RE: Difference between F55 and UNS 32760
We have received an offer from vendor showing UNS32760 Super Duplex body, whilst our client datasheet shows ASTM A182F55.
RE: Difference between F55 and UNS 32760
ASTM A182 F55 is UNS 32760
Why was it not accepted ?
Regards,
DD
RE: Difference between F55 and UNS 32760
I re-read your comments, so F55 is equivalent to UNS32760? Is there a good reference where we can refer to our client as back-up? Thanks,cnergy13
RE: Difference between F55 and UNS 32760
F55 is simply an alternate name that was given to the alloy and has no meaning outside of A182.
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P.E. Metallurgy, Plymouth Tube
RE: Difference between F55 and UNS 32760
It is not equivalent - F55 is UNS 32670
ASME IX 2015 Page 95 (second line from the bottom)
ASTM A182 Table 2 Page 11 (third line from top)
Regards,
DD
RE: Difference between F55 and UNS 32760
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.