Waspaloy ? Doesn't that call for Dirt Dobber Passes ?

Sorry, I couldn't help myself !

Shaggy.

Please double check your alloy.

The Inconel family of alloys has an alloy 718  (inco 718)

Waspaloy as far as I know is a single material and not a family of alloys.

They (Waspaloy and inco 718) are comparable in that they are both commonly used in hot sections and fall under the umbrella of "super alloys"  Waspaloy is a relative newcomer compared to inconel 718

I've welded alot of both and if processes are under strict control and you are using *proven* procedures, there is little difficulty.

Waspaloy is age hardenable wheras Inco 718 is precipitation hardenable.

Here is a link to Waspaloy that includes some basic weldability data..  Note the annealing requirement.!!!!!
http://www.haynesintl.com/pdf/h3128.pdf

Here is prolly more than you wanted to know about inco 718
http://www.silencertests.com/docs/01-0970-673.pdf

Did you try any of these sites below?

http://www.wyman-gordon.com/Carpenter%20Waspaloy.pdf

http://www.specialmetals.com/documents/Waspaloy.pdf

http://www.allvac.com/pages/PDF/tech/NI001Waspaloy.pdf

http://www.rolledalloys.com/trcdocs/hightemp/RAwaspapg9.pdf

http://www.haynesintl.com/pdf/h3055.pdf

http://weldingengineering.osu.edu/materials/niBaseSuperalloys.asp#0

Hey Lawrence! Off topic, but look @ page 25 in this .pdf:

http://www.vbcgroup.com/vbc_assets/19_VBC2006_WEB_BROCHURE_1.pdf

Also, Larry! I'm sure you'll appreciate this regarding the history of alloy 718 and where "Waspaloy" was being exclusively used beforehand - take a look at this .pdf:

http://iweb.tms.org/SUP/01-5107-13.pdf

Here are more links for you Shaggy:

http://files.aws.org/wj/supplement/06-2003-QIAN-s.pdf

http://www.thecdi.com/cdi/images/news_pdf/Cobalt_News_April_2005.pdf

When you write "#718 Waspaloy" are you referring to a "Super-Waspaloy" or an "Allvac 718 plusTM and I ask this because "Waspaloy" has similar characteristics to a Nickel alloy 718, but it is not the same as alloy 718... So if you could give us the Mfg. of this "#718 Waspaloy" we could then give you more specific assistance - CAPECHE??? ;)

Now, if you're using an ATI 718Plus Alloy then here's a link for you which can be helpful:

http://www.alleghenytechnologies.com/allvac/718plus/PDFs/Ni_417.pdf

Here's another very good technical article regarding the weldability of ATI 718 Plus Alloy when compared to regular Alloy 718 and "Waspaloy."

http://proquest.umi.com/pqdlink?Ver=1&Exp=09-27-2015&FMT=7&DID=1467898041&RQT=309&attempt=1&cfc=1

Also, what filler metal are you using? Are you using copper back up purging bars? What process are you using to weld? Pure Argon is recommended for GTAW.

Here are some more links which may or not be helpful since you have given us a very limited amount of information regarding the specifics to your project...

http://www.welding-advisers.com/PRACTICAL_WELDING_LETTER-PracticalWeldingLetterNo10.html

http://www.welding-advisers.com/Welding-heat-resisting.html

If you're not using the GTA welding process, then I recommend that you look at this link fro WeldMold and follow their recommended procedures for welding Waspaloy with the SMAW and FCAW processes...

http://www.weldmold.com/index.php?option=com_content&view=article&id=87%3Aweld-mold-4637&catid=7%3Acopper-and-nickel-alloy&Itemid=10

Also Ed Craig's site has some shielding gas recommendations for GMAW here...

http://www.weldreality.com/STEELS%20NICKEL%20ALLOYS.htm

Btw, stringer beads are recommended instead of weaving and this is recommended for all processes.

However, if you're looking for weld properties for Inconel Alloy 718, then here's .pdf that could be helpful to you:

http://www.specialmetals.com/documents/Inconel%20alloy%20718.pdf

Of course, without knowing exactly which base metal you're using, I can only give you some of the options listed. If you know the UNS or AMS number for the base metal, and possibly the Manufacturer of the material and post it here, we can help further.

Respectfully,
Henry