rod selection help

[mike os]

I think I have it right but would like to confirm please

TIG
for mild steel A15 supersteel/sifsteel

Brazing Sifalbronze no 32..... al/bronze rather than silicone bronze? Dont see any silicone bronze rods on the weldability site??

Looking to lose the oxy acet setup & still retain the usefullness of not having to mig thin section & dissimilar metals etc...

I see triple, double & single "deoxygenated" rods... best to stick with triple?

any other advice? (other than long walk .... etc)

cheers

 

[Shox Dr]

I started a thread in the TIG section a while back regarding the best selection for a workshop. Worth a read

 

[Engineer]

You might find SIF No8 more suitable for TIG brazing? Good selection of TIG consumables here: http://www.rapidwelding.com/dynamic/category.aspx?c=TIGSSTEEL&o=0&zz=0&zl=1&sq=10

 

[hotrodder]

Yep, A15 (aka er70s-2) is the usual suspect. The double/triple deoxidised thing is discussed in more detail towards the end of this thread... http://www.mig-welding.co.uk/forum/showthread.php?t=22172&highlight=deoxidised (the one Shox mentioned)

The silicon bronze TIG wire is usually described as 'copper silicon C9' (SIFs in house name is silcopper no. 968). The albronze 32 (C13) is stronger, harder and a fair bit more spendy. The other suspect for TIG brazing is phosphor bronze (C11, SIF #8). Compared to oxy fuel brazing wires C9 is a bit softer and weaker than SIFbronze #1, the other 2 are closer to the SIFbronze #2 strength wise

 

[mike os]

ta guys

Shox.. remembered the thread but thought my mind was playing tricks as I could not find it.. a year is a long time in some instances LOL

so a15 & sif no8 will do most of what I want?
(already have 304/8/16)

what is the difference between SIF no 8 and 968? (for info only)

 

[mike os]

Also a supplier would be usefull... my local shower are not much use for anything other than basics

 

[TechnicAl]

Good thread that one

 

[Engineer]

http://www.rapidwelding.com/dynamic/...z=0&zl=1&sq=10 all the TIG rods you are likely to need there, from the UKs top online welding store.

 

[GrahamGKD]

Also a supplier would be usefull... my local shower are not much use for anything other than basics

I got my SIFBronze No8s from Weldequip - from memory I had a full pack but I think he was prepared to split a pack if necessary. They are expensive but I think his price was the same as Rapid.

 

[mike os]

additional data please:-

a15 rod size for 0.8-2mm thick, 1-1.2mm rod? (1.6 too large?)
for brazing is rod size a real issue? 1.2mm seems to be smallest,

 

[hotrodder]

Less of an issue with brazing but if the filler wire is thicker than base material life gets more difficult when welding- either the wire over cools the weldpool or you're more at risk of blowing holes/distorting things when you turn the juice up to compensate. Personally i'd either straighten* some 0.8mm MIG wire or use 1.0mm TIG wire when welding sheet that's thinner than 1.0mm. I'd use 1.6mm wire when welding 2.0mm steel, thinner wire will work although it'll be more prone to melting back/balling up before it reaches the weldpool if your angles of attack are off, thinner wire is harder to feed and you obviously need to feed more of it when welding thicker material. I've only ever bothered with 1.6mm brazing wire although if brazing stuff that's sub 1.0mm thick 1.2mm wire would be easier to use

*feed off a length of wire, clamp one end in a vice t'other in a drill chuck and with it under a little tension give it a spin

 

[mike os]

thanks HR, thats what I thought but wanted to be sure as I dont have sufficient experience yet & really cant be arsed making unnessisary problems/mistakes.

 

[TechnicAl]

http://www.rapidwelding.com/dynamic/...z=0&zl=1&sq=10 all the TIG rods you are likely to need there, from the UKs top online welding store.

are you Roy or Andy?

 

[Omniata]

thanks HR, thats what I thought but wanted to be sure as I dont have sufficient experience yet & really cant be arsed making unnessisary problems/mistakes.

Pity you didn't say anything about this whilst you were up !!

I've a W cylinder of Argon and a whole pile of rods

 

[mike os]

Pity you didn't say anything about this whilst you were up !!

I've a W cylinder of Argon and a whole pile of rods

'kin typical LOL

no doubt i will be up at the uni in a few weeks to help replace the vimto monument.... so what you got mate ( & ££££)... pm me...