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Grades of brass

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Lew_Merrick_PE:
Bry,  -- Going WAY off topic --  There was an Isaac Asimov story about an engineer who leapt from a burning building with his Handbook of Robotics and only wearing his underpants.  Had the timing been "tighter," he would have foregone his underpants.

I have tried to start lists based on this theory several times over the years.  You are in a burning building.  You have the choice of pants (under or otherwise) or grabbing a book before you leap out the window.  What book do you grab?

Ned Ludd:
Hi Guys,
Stuff the books, I would look for an umbrella, and a soft landing. You can always buy new books. :lol:
Ned

lordedmond:

--- Quote from: DavidA on January 15, 2011, 01:51:40 PM ---Bogs,

...Try silver soldering (you call it silver braze) a bit of ali bronze, you will find it is almost impossible....


That made me smile.  A few month ago I had a bit of 'copper alloy' that I had turned up and drilled.  I needed a length of copper pipe brazing into it,  and as it was easier to get it done at work that to set up my own gear,  I dropped it off with out copper jig making chap.
Later the brought it to me saying "Rotten bit of brass you got there.  had one hell of a job brazing it."

That's when I remembered it was ally bronze.  Thought it best not to tell him at this stage.

Dave :doh:

--- End quote ---


It can be silver soldered with ease just add some table salt to your flux mix and all will be OK
http://www.cupalloys.co.uk/fluxes-c59.html

see hint 3

MrFluffy:
I have a lump of mystery metal Im fine with calling it ally, steel, brass etc. However occasionally I knock up fork yokes and wheel spindles and other high stress bits of motorbike, so I look up the properties then seek out and buy a specific grade of alloy or en graded steel for these bits probably for my own peace of mind as Im likely to be doing xyz mph on the thing later on, so there its really useful to have developed a feel for what grade will be right for that job.
I wouldn't dream of trying to get graded stuff from the scrappy, or worry about not taking if it wasnt, Im too busy filling my bucket excitedly at my find and mystery metal is just fine in most applications, although I have destroyed a few cutters on mystery grades of stainless in the past :D

Engraver:
My first post, so I hope everything is in the right place! :wave:

http://www.columbiametals.co.uk/products/list.php?category=3

A useful site for the comparison of and the make up of all sorts of metals.
There is a section on brass.

They supply the product, but I am not sure in what quantities!

I have off cuts of sheet brass and stainless steel, and anodised aluminium.

CZ120 in 3mm and 1.5mm as well as nominal 1.0mm (usually 0.9mm!) and recently started using 0.7mm

I am an engraver - and I hate throwing away bits that somebody else could use!

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