Not to mention I am attaching brass so although brazing might be
better it may also melt my pin!
Here in UK, there is (or certainly was) a distinction between hard
soldering and brazing: brazing traditionally means soldering with
brass as the solder (and this will certainly melt your brass pin)
whereas hard soldering means using a solder (other than brass) that
has a melting point greater than about 400C (which would be fine for
You cannot use a soldering iron for hard solder; the melting point
is far too high, you need a hot flame.
Hard solders are based on alloys containing silver, and in UK are
generally referred to as “silver solders”; the process being known
as “silver soldering”.
You can hard solder stainless steel in the same way that you solder
gold, silver, copper, brass, etc. - the only caveat being that some
grades of stainless require a special flux. EasyFlo flux works with
most grades of stainless, but Tenacity works with all that I’ve
After the joint is made, EasyFlo can be removed with hot water, but
Tenacity requires a lot more effort.
If you have never tried hard soldering, then give it a try, but
don’t try it on anything that you value - it requires a certain
amount of practise.
Regards, Gary Wooding