Thank you,
Is that “thinking” well and clear defined on any code, with real figures like hardness or ferrit number or what else?
Regards
Fernando Gameiro
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Harish Kannepalli
Sent: 02-Julho-2010 08:20
To: materials-welding@googlegroups.com
Subject: Re: [MW:5823] Hard-facing overlay versus Corrosion resistent overlay
Dear Fernando,
Hard facing overlay is for wear resistance applications, where continuous rupture of the part is involved. Incase of ,corrosion resistant overlays, its purely for acidic or alkali resistance applications. At times some overlays are hard facing as well as corrosion resistant.
In hard facing overlays, hardness is an important feature. In corrosion resistant overlays, bonding of base metal, chemistry of layers are some of the important features.
regards,
Harish.
2010/7/1 Fernando Gameiro <fgameiro@velan.pt>
Dear All,
According to ASME IX the difference between Hard-facing overlay and Corrosion resistant overlay is limited to the type of tests that is required on PQR and WPS ?
According to ASME, how to define if certain overlay is a Corrosion resistant or a Hard-face?
Thanks
Fernando Gameiro
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