SS filler on CS??

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Anyone know where I can get info on carbon content of ss rods, and also the coating/plating abilities. Wanting to use ss rod on carbon weldment and need to know the science of. Thanks for any info.Miller TrailBlazer 251Miller HF-250-1Miller MaxStar 150 STLHyperTherm PowerMax 380 plasmaLincoln PowerMig 180Millermatic 252Miller Diversion 180
Reply:Not sure what exactly you are asking.  The carbon content of SS will affect the degree of carbide precipitation that occurs during welding, and hence it will affect corrosion resistance of the weld heat affected zone.  Generally the main issue with applying SS to carbon steel is the chemistry mixture of the weld metal, which can become highly hardenable if dilution of the SS with CS is excessive and/or if the SS is not rich enough in nickel.  This is why the Schaffler, Delong, and WRC diagrams were developed, to estimate the weld chemistry and predict if the weld will remain austenitic and ductile, or if it will become martensitic, hard, brittle, and crack sensistive.Does this relate to your previous thread?http://weldingweb.com/vbb/showthread.php...s+steel+carbon
Reply:The chemical make-up of most fillers (rod/wire/etc) is defined in the AWS-class and is also typically available in the product literature (general catalog and/or specific product brochure/guide).Example:  Lincoln's Stick Welding Guide document C2410 and the Stick Electrode Catalog document C210, their Stainless Blue Max and Red Baron Product Catalog document C610, their Stainless Steel 'reference' document C64000, etc, etc, etc.See also ESAB's website/product literature, and any other weld filler maker/distributor/whatever for info on their product(s).  Like Stoody,  or Harris, etc, etc.And as pulser said, it's not so much the amount of carbon in the stainless filler but the mixture of the filler and the base/parent material in the weld bead/puddle/zone and the resultant chemical make-up of that mixture and the surrounding zones and the final physical properties there-of.  The best laid schemes ... Gang oft agley ...
Reply:L grades < 0.02%CH grades up to 0.08 %CFerritic types up to 0.12 %C ( and some 309 types )Any SS electrode used to weld CS will require a minimum of 12% Ni to resist dilution.Consult the schaeffler diagram to establish crack susceptibility of resultant welds.
Reply:Thank you for the info,,I have another duhu question,,, What is the Schaeffler diagram and where can I find it?Miller TrailBlazer 251Miller HF-250-1Miller MaxStar 150 STLHyperTherm PowerMax 380 plasmaLincoln PowerMig 180Millermatic 252Miller Diversion 180
Reply:I just copied, pasted and 'Googled' "schaeffler diagram" and came up with a page full of sites, the diagrams showing on that first page even. I didn't try to find the best site though.
Reply:Ok, thinks... Sorry for being lazy, didn't mean to.Miller TrailBlazer 251Miller HF-250-1Miller MaxStar 150 STLHyperTherm PowerMax 380 plasmaLincoln PowerMig 180Millermatic 252Miller Diversion 180
Reply:Are you welding carbon to carbon?  If so, why bother with the expense of stainless filler?