[motox]

I've used silicone bronze and Jody has said
silicone alum is stronger. what is the proper
name or number to order silicone alum rod?
i would like to give it a try.
can it be used in place of silicone bronze on
steel or stainless steel?
craig

[Braehill]

I believe it's called Aluminum bronze, and most welding store. both brick and mortar and online can order it if they don't stock it. Not sure about the numbers though. Yes it can be used on steel.

Len

[motox]

Braehill
do you have a brand name you prefer ?
i hate to buy stuff twice
craig

[Braehill]

Motox,
It's not something that I've used personally, but you can usually trust Harris brand.

Len

[weldin mike 27]

Hey,

Not to confuse you, but you can buy high silicon alum. Not sure of the number, but its only for alum. Haha.

[motox]

mike
when would you need to use high silicone alum rod?

[motox]

len
thanks for the tip
i use their stuff

[weldin mike 27]

I'm not sure mate, as I'm not an alum man. All I remember from trade school is that a common one was a silicon blend.

[noddybrian]

Seems a slightly confused post - the OP seemed to be asking about aluminum bronze for Tig brazing as it's stronger than silicon bronze - many makes are available & I doubt there is much to choose between them except brand loyalty or price / availability at a local level ( avoid very cheap Ebay imported stuff though ) - as to aluminum with silicon then 4043 is the most common @5% silicon - it's the go to filler for many alloys & when you don't know the alloy - only time it's not suitable is if the part is to be anodized - "high" silicon rod would be 4047 @12% silicon ( approx ) which is used for greater ductility generally when an alloy is prone to cracking ( ie castings ) - it's the go to filler when doing cracked intake manifolds / turbo / intercooler piping.

Hope I understood the question correctly & that helps.

[motox]

steve
thank you that answer was very helpful
craig