[MW:4623] Weld A182 F91 TO SS 316

Hi everyone, cuold somebody please let me know how weld Branch SS 316 to ASTM A182 Gr. F91 (consumable and WPS).
Thanks in advance
Regards
Atilio Vasquez
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Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change. Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

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------------------------------------- Interpretation: I‑89‑14 Subject: Section I (1986 Edition, 1987 Addenda), PW‑11, NDE Prior to PWHT Date Issued: December 15, 1988 File: BC88‑393 Question: Does PW‑11 require that NDE be performed on welds after they have been subjected to the postweld heat treatment required by PW‑39? Reply: No, unless the conditions described in PW‑11.2.2 exist. ---------------------------------------------- Interpretation: VIII-1-98-09 Subject: Section VIII, Division 1 (1995 Edition, 1996 Addenda); NDE ...

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