Suggested thickness of brass plate for front standard.

[Lachlan 717]

Prior to starting a 7x17" build, I purchased some Aluminium sheet to be used for the front/rear standards.

However, now that I'm into the build, I'd like to use brass instead.

Can someone please suggest the thickness I should consider for this purpose?

Thanks.

[Otto Seaman]

22 pixels.

Got a drawing or something? Is it bent, screwed into wood, or just flopping there?

[Lachlan 717]

22 pixels.

Got a drawing or something? Is it bent, screwed into wood, or just flopping there?

Obviously, it's just "flopping there". Just like Herpes, your wit is infectious...

[IanG]

Perhaps you need to specify what exactly the brass is to be used for. Is it the hardware/fittings ? Somewhere between 1.6mm and 2mm is ideal for that.

Ian

[Lachlan 717]

Somewhere between 1.6mm and 2mm is ideal for that.

Ian

Thanks, Ian.

[Leigh]

Hi Lachlan,

Permit me to suggest alloy 954 bronze. It's a beautiful light yellow. It does not tarnish, even when exposed to sea air.

It's also much stronger than brass, with a yield strength of 36,000 psi as compared to 16,000 psi for brass (alloy 360).

You can get it from online dealers like Speedy Metals www.speedymetals.com or McMaster-Carr www.mcmaster.com or
any local metals dealer.

I have a machine shop, doing a lot of precision work. Alloy 954 bronze is the only "yellow" metal that I stock; no brass at all.

- Leigh

NB: Alloy 954 is also called "aluminum bronze" because aluminum is a major component of the alloy. The metal is not aluminum.

[William Whitaker]

Leigh,

Is 954 bronze malleable? Will it take 90º bends without fracturing or breaking?

How does its weight compare with aluminum?

Thanks

[Leigh]

For 1/8" sheet, 12" square...
6061 aluminum weighs 1.76 pounds
9054 bronze weighs 4.84 pounds, so about 2.75x aluminum.

If you're talking about bending thin sheets (maybe <1/16"), that might be possiblr.
I doubt that you could bend thicker sheets without damage. I've never tried to bend any thickness.

Alloy 954 is very hard. It's used for bearings in motors and other rotary-shaft applications.
Consequently it does not want to deform.

- Leigh

[Lachlan 717]

Thanks, Leigh.

I'll see whether I can source it here in Australia.

[Leigh]

I'm sure it's available down under. It's one of the most common and popular bronze alloys. Beautiful stuff.

The 954 may be an American standard alloy number. I'm sure any supplier can cross it to local standards.

- Leigh

[Steven Tribe]

Somehow a post I made last night disappeared early this morning - so here it is again.

Looking at the major support brasses on my tailboard cameras, the thickness of the brass is as follows:

18x24cm camera - 2.5mm

30x40cm camera - 3.25mm - but with additional thickness near the base rail (place for a slot which fits onto the rail) 4.5mm.

These are all flat brass pieces.