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Question for the IRRA® BoD


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#26 Rick

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Posted 06 October 2016 - 02:28 PM

As long as it's yellow brass with no plating, tining, painting etc it would be legal.

So it is now not just brass , must be yellow brass? Different grades have different hues. I get it. Thanks for your time BoD........


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#27 tonyp

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Posted 06 October 2016 - 02:49 PM

Standard brass color. Not the red or silver colored stuff. Most all brass is "yellow" color.
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#28 tonyp

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Posted 06 October 2016 - 02:52 PM

As long as it's yellow colored brass with no plating, tining, painting with a color ( not clear) etc it would be legal.



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"And if my thought-dreams could be seen they'd probably put my head in a guillotine. But it's alright, Ma, it's life, and life only." - Dylan

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#29 tonyp

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Posted 06 October 2016 - 02:52 PM

Corrected post above I typed faster than my brain.
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"And if my thought-dreams could be seen they'd probably put my head in a guillotine. But it's alright, Ma, it's life, and life only." - Dylan

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#30 The Number of

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Posted 06 October 2016 - 03:46 PM

Is there a simple tatste test available for brass?
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#31 Samiam

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Posted 06 October 2016 - 03:54 PM

No. You need one of these:

http://alloytester.c...CFYpkhgod_zgG3Q


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#32 Matt Sheldon

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Posted 06 October 2016 - 03:54 PM

Is there a simple tatste test available for brass?

Tastes like chicken


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#33 Brinkley47

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Posted 06 October 2016 - 04:50 PM

I want one Rick minus the tin plating :)
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#34 Half Fast

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Posted 06 October 2016 - 05:06 PM

No. You need one of these:

http://alloytester.c...CFYpkhgod_zgG3Q

 Here's a nice used one on Ebay! Cheap too :shok:

 

http://www.ebay.com/...s&ul_noapp=true

 

Cheers


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#35 Tim Neja

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Posted 06 October 2016 - 05:25 PM

Buy two--- their really reasonable!!  :dash2:  :shok:  :laugh2:


She's real fine, my 409!!!

#36 Rick

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Posted 06 October 2016 - 10:17 PM

Brass is a metal alloy made of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.[1] It is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure.

By comparison, bronze is principally an alloy of copper and tin........


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#37 MSwiss

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Posted 06 October 2016 - 10:25 PM

What does the above have to do with your original question?

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#38 Rick

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Posted 06 October 2016 - 10:40 PM

The topic WAS about plated hard brass. That was "sorta" addressed. The above states what brass is and it may vary. And also the main metals of bronze, which is a different metal alloy, and that was the implication of what my find was. Then color somehow made it into the conversation. The rules have always just stated brass. are you prepared to change the rules wording  just to keep this new material out of the mix? It is brass and just a higher grade of such......


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#39 gc4895

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Posted 06 October 2016 - 10:41 PM

I think retro only allows brass.
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#40 MSwiss

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Posted 06 October 2016 - 11:06 PM

Rick,
Your picture is poor.
How can you expect us to make a ruling based on it?
Does it have the same or a very similar color as other chassis parts, yourself, JK, Duffy, Mossetti, or myself, sell, or have sold?

If it does, you have nothing to worry about.

If it looks like phos bronze or "straight" copper, unless you are willing to supply all the IRRA® tech directors with that $9,999 machine, how could you possibly expect us to OK it?
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Mike Swiss
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#41 Guillermo Suar

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Posted 07 October 2016 - 08:00 AM

Or you can send it to me and I can use this $40,000 machine instead.

 

a051d3b5-145a-44cc-b468-e67c648ac4ce_zps


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#42 Samiam

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Posted 07 October 2016 - 08:05 AM

Guillermo

You will have to be deputized as an honorary BoD member.
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#43 The Number of

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Posted 07 October 2016 - 08:07 AM

I think I will wait for RONCO to come out with their pocket size analyzer. :)
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#44 John Streisguth

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Posted 07 October 2016 - 09:04 AM

If it's just brass, and the coating is so thin it can be removed by tumbling media, wouldn't the easy solution be to just remove the coating before processing into chassis parts?


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#45 MSwiss

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Posted 07 October 2016 - 09:29 AM

John,
If you look through this thread, that solution has been discussed.

There still seems to be some issue, with Rick, that the IRRA® still wants the bare, tumbled piece to look like brass, since everytime a chassis is entered, the tech man won't have a 10K analyser.
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Mike Swiss
IRRA® Components Committee Chairman
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Two-time G7 World Champion (1988, 1990), eight G7 main appearances
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Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#46 Matt Sheldon

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Posted 07 October 2016 - 10:54 AM

Will there be an amendment to the rules regarding coatings? As of right now there is zero verbiage (other than in this thread) on coatings, painting, etc. Will there be specifications regarding brass and what is compliant? Nowhere does it state that the chassis material must remain brass in color or even transparent. The rules state brass, but some "brass" would fail should it contain bronze. Some "brass" comes standard with conformal coatings albeit medical, electrical or otherwise. To me if these types of brass meet the molecular build up ratio (copper to zinc) then they should pass. Obviously this should be simple, but now we have to look at it how the rules are written.

 

Before I scrap $4K worth of brass and a boatload of wasted time, this would be helpful to know.

 

If this is really where we are at, I think the following should be added and clarified -

 

1) Coatings (yes or no). If so a coating is a coating regardless if it is a paint or chemical process, allow one you allow all. Transparent and opaque both compliant?

 

2) A numeral specification as to the percentage of copper and zinc allowed. This ratio changes the category of which some brasses are classified in.


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#47 John Streisguth

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Posted 07 October 2016 - 10:55 AM

Yup... just had to ask what might be a dumb question, given how far the "analysis" drift has gone.


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#48 Rick

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Posted 17 October 2016 - 10:29 PM

The jury has reconvened. Just to make it as simple as can be, the material is basically copper, zinc would be trace. Think of soft copper tubing vs hard copper pipe as an example. Being that no where does it state copper is an approved material, I will dump the project...


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#49 Half Fast

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Posted 18 October 2016 - 08:32 AM

Rick-

 

Your integrity does you credit :good:

 

Cheers


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#50 Brinkley47

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Posted 18 October 2016 - 09:16 AM

The jury has reconvened. Just to make it as simple as can be, the material is basically copper, zinc would be trace. Think of soft copper tubing vs hard copper pipe as an example. Being that no where does it state copper is an approved material, I will dump the project...

 

So it was not full hard brass?


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