weldmetadvisory

Does Hastelloy C-276 material require any special care during welding?   Need guidance on procedure qualification for Tube-to-Tube welding application? 

Hastalloy C-276 is a corrosion resistance Nickel-based superalloy,  The main alloying elements are Cr, Mo, Fe and W. The alloy designed is based on solid solution strengthening, and no precipitation hardening mechanism so, the alloy C-276 are not hardenable by Martensitic Structure thereby eliminating any chance of martensite formation in HAZ due to entirely austenitic structure up to …

Does Hastelloy C-276 material require any special care during welding?   Need guidance on procedure qualification for Tube-to-Tube welding application?  Read More »

The weld joint between 17-4PH and SS 304L ? ER 630 Vs ER 308L? Which filler metal to use and why?

17-4 PH  (S17400) is classified under ASTM A693 Type 630 is Chromium-Nickel-Copper precipitation hardening Stainless Steel used for applications requiring high strength and a moderate level of corrosion resistance. High strength is maintained to approximately 600°F (316°C). Which require heat treatment from the Condition A (mill annealed soft condition). In 17-4PH, Condition A is brought …

The weld joint between 17-4PH and SS 304L ? ER 630 Vs ER 308L? Which filler metal to use and why? Read More »