Hi Muniyandi,
What's the grade of stellite to be deposited??.Stellite is a brand originated from Cabot Corporation and now with Delloro Stellite, and it comes in various alloy grades such as Stellite -6, 12, 21 and on.... Stellite -6 is common, see the attached spec sheet FYI.
While depositing stellte in multiple layers ,its very possible to get cracks. If the deposition is in 2- or more layers its advisable to get a buffer layer, preferably with Nickel base alloys.
If the requirement is to deposit stellite on SA 217 WC9 base metal, then the PWHT requirements would be as per the design code. If the component is a valve and the design code is ASME B-16.34, then typically the guidelines of ASME Sec-VIII, DIV-1 would be applicable for PWHT of the component.
Thanks.
Pradip Goswami,P.Eng.IWE.
Welding & Metallurgical Specialist & Consultant
Email-pgoswami@sympatico.ca,
2010/12/15 Muni Andy <cmkfc07@gmail.com>
What is the recommended Post Weld Heat treatment Temperature for hardfacing overlay on WC9 material?Which standards cover this details?C.MuniyandiCoimbatore--
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regards,
Harish.
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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