Where to get soft solder, Tin and 4 to 6% silver sort of stuff

[marinaman]

Hi.
I am doing model engineering, so what I am making involves no real heat or great pressures
but looking for strong solder to weld drill bits and reamers on to extention rods and similar
jobs.
I have been looking at solders that will do the job, I have been asking around.
Brownells #44 is what I need apparently. Thats in America needs to be posted and
is over £200 a pound.
Harris industries does something similar. Thats in America wants posting here and is
cheaper, say £140 for a pound.
Is soft solder just that expensive?
Is there a supplier here?

Thanks for replies.

 

[Rrobson]

High strength loctite may very well do for what you need!
A bit of bronze brazing wire would be perfect for that application

 

[daedalusminos]

Hi.
I am doing model engineering, so what I am making involves no real heat or great pressures
but looking for strong solder to weld drill bits and reamers on to extention rods and similar
jobs.
I have been looking at solders that will do the job, I have been asking around.
Brownells #44 is what I need apparently. Thats in America needs to be posted and
is over £200 a pound.
Harris industries does something similar. Thats in America wants posting here and is
cheaper, say £140 for a pound.
Is soft solder just that expensive?
Is there a supplier here?

Thanks for replies.

Looks to be cheaper than that (£129/lb) on the .co.uk site....and they also do smaller qtys.

Standard electrical soft solder e.g. SAC305 is cheaper than that.

 

[Mikes]

For silver solder in small quantities go to CuP Alloys. They're the ones that many model engineers use. Good for advice as well.

 

[gaz1]

Hi.
I am doing model engineering, so what I am making involves no real heat or great pressures
but looking for strong solder to weld drill bits and reamers on to extention rods and similar
jobs.

id rather use a bar with a hole drilled into the top and use 2 screws on the side

as the drill would look more like an end mill

something like this no welding just grinding a flat end on the drill bit

Forstner Extension Bar 3/8 Collar - 6 Long : Ockenden Timber

6” long Forstner extension bar for use with 3/4” diameter or larger Forstner bits. Fits Forstner bits with a 3/8" diameter shank. Ideal for boring deep holes in projects (eg. salt and pepper mills). Works with any style of 3/8”

www.ockenden-timber.co.uk

 

[marinaman]

Thanks for all info

that Cup alloys looks good. I had not heard of them
and I can try small amounts out.

I could be I a bit snobbish about welding and soldering
maybe I would'nt tell the difference if I had used acrylic epoxy not
braze or whatever afterwards

 

[Dragnet]

The usual electrical supply houses do tin/lead/silver/copper solder in various combinations if you filter the relevant search. Perhaps a tin/silver would do you. At CPC that's about £35/reel. I have a 0.7mm tin/lead reel I use for all my repairs and it goes down so slowly I got it off my grandfather who also used it! You'll probably find your cost per joint is miniscule. As we all know, value remains when cost is forgotten!

 

[Anguz]

Rs do up to 4%

 

[Popcorn]

Central Metals and Alloys Tinmans Solder Grade C 1| at Zoro

Central Metals and Alloys - Tinmans Solder Grade C 1/2LB Stick available at Zoro.co.uk - UK's Leading Supplier of DIY Tools and Supplies'

www.zoro.co.uk