Shout out to all you Hard Solderers!

by **karrotbear** » Thu Jun 13, 2013 5:05 pm

Hello all,

Today I bought this pallet of plumbing goods from a store going into receivership etc.

To my surprise I found about a good 3" diameter worth of brazing rods hiding in one of the boxes.

Now the packaging says:

Manufacturer: Seleno Brazing for Consolidated Alloys
Part Number: 06536
Description: 15% SBA 2.4x750mm
Colour Code: Brown/Tan

IMAG0526.jpg

Can anyone tell me what this means? Is it safe to use for our purposes?

There are a few rods without packaging, with random color dots on the bottom of the rods, what do they mean? A few of the rods look kinda bronze too?

IMAG0527.jpg

by **Aussiedownunder01** » Thu Jun 13, 2013 5:10 pm

Its probley crap stuff send it to me :teasing-neener:

by **blond.chap** » Thu Jun 13, 2013 5:10 pm

Nup, it'll poison you. Post it over here before you hurt yourself.

by **karrotbear** » Thu Jun 13, 2013 5:11 pm

Bahaha, how many rods do you usually use for a build? Because I seriously have upwards of a 100 or so in the box :/

by **blond.chap** » Thu Jun 13, 2013 5:12 pm

Seriously though, it's fine 15% silver brazing alloy from the sounds of it.

You lucky bastard. You only need 5 rods or so for a build.

by **karrotbear** » Thu Jun 13, 2013 5:14 pm

Do you know what the red and yellow dots on the bottom of them mean?

Can I assume that the bronzer looking brazing rods have a lesser silver percentage, more copper, and as such still good? or should i just stick with the 15%?

by **MacStill** » Thu Jun 13, 2013 5:16 pm

I think

yellow = 2%

red/brown = 5%

silver = 15%

Happy to be corrected as I dont use the stuff much.

by **blond.chap** » Thu Jun 13, 2013 5:17 pm

From their MSDS, yellow is 2% silver, silver is 5%, brown is 15%.

From what I understand 15% is the easiest to use, 5% is ok, 2% doesn't flow so well.

by **MacStill** » Thu Jun 13, 2013 5:18 pm

:happy-partydance: :dance: I got one right :dance: :happy-partydance:

by **blond.chap** » Thu Jun 13, 2013 5:20 pm

MacStill wrote::happy-partydance: :dance: I got one right :dance: :happy-partydance:

You were close Mac, just got 15% and 5% mixed up.

Untitled.jpg

by **karrotbear** » Thu Jun 13, 2013 5:22 pm

Awesome :)

Now all i need is the tools to use it :P

Thanks for all the info guys!

by **bt1** » Thu Jun 13, 2013 8:10 pm

Bloke,

what your not going to use straight away wrap up in foil or better and store ...away from moisture and heat...fucking bonus you got there....

bt1

by **Sam.** » Thu Jun 13, 2013 11:52 pm

Yep, you can also get 45%.

Usually the better it is the thinner it is and costs more :wtf:

Get the oxy set out cos this shit wont melt until about 1300C :handgestures-thumbupleft:

by **P3T3rPan** » Sat Jul 27, 2013 10:20 pm

bt1 wrote:Bloke,

what your not going to use straight away wrap up in foil or better and store ...away from moisture and heat...fucking bonus you got there....

bt1

If it is silfos it don't need any special treatment. Us plumbers just leave it in the tool kit or back of the van. It is pretty tough stuff.
A little hard to use after pricking an old silicone tube when you cant find a nail but even covered in glue it can still be used when you know your way around a gas flame.

Sent from my iPhone 4s using Tapatalk

by **bt1** » Sun Jul 28, 2013 8:58 am

I'm just putting my hand up here...

phosphorus rods like silfos and ethanol with its levels of sulphur compounds in a gas state and heated would not be my first choice for brazing a still.

Additional to the corrosion issues there's also some safety debate on the resulting oxide they produce.

bt1

by **P3T3rPan** » Tue Jul 30, 2013 11:42 am

bt1[/quote

bt1 wrote:I'm just putting my hand up here...

phosphorus rods like silfos and ethanol with its levels of sulphur compounds in a gas state and heated would not be my first choice for brazing a still.

Additional to the corrosion issues there's also some safety debate on the resulting oxide they produce.

bt1

Very interested to see more about this
Have googled extensively but cant find the safety debate you are talking about. Maybe I am using the wrong search terms.
Silfos use in hot and cold water supplies is extensive (most hot water cylinders made of copper are joined with it) but I can not find any real information about its use with ethanol.
Phosphorous is everywhere in the environment, especially in the food chain so I can't see that this is what you are getting at.
Which "corrosion" issues are you referring to.
Damn now I wont be able to sleep worrying that all my clients past will be coming to sue me for using what I thought to be the best product for the safety of their water supplies :shock:
]

by **P3T3rPan** » Tue Jul 30, 2013 12:04 pm

sam_and_liv wrote:Yep, you can also get 45%.

Usually the better it is the thinner it is and costs more :wtf:

Get the oxy set out cos this shit wont melt until about 1300C :handgestures-thumbupleft:

Huh ?
1,085 °C

Copper, Melting point

by **Sam.** » Tue Jul 30, 2013 12:40 pm

P3T3rPan wrote:
sam_and_liv wrote:Yep, you can also get 45%.

Usually the better it is the thinner it is and costs more :wtf:

Get the oxy set out cos this shit wont melt until about 1300C :handgestures-thumbupleft:

Huh ?
1,085 °C

Copper, Melting point

Close enough.