If there is brass that looks like phos bronze, once we allow it, we have no way of knowing if what is presented for tech, is that particular brass or phos bronze.
What are you implying?....
I thought my above statement is clear, but if you need more detail;
If your material looks like phos bronze, despite your ISO certified supplier saying it's just brass, and the IRRA®'s ability, if we wished, to send it to Guillermo Suar, to confirm as such with the $40K machine he has access to, all that does, is confirm that pc. is brass.
It would leave anyone else to walk up to the tech line with material that looks the same. We can't hold up the race, each time
, to send that particular chassis to Guillermo, for verification.
Bronze (mainly copper and tin) is a reddish color while brass (mainly copper and zinc) tends to be yellowish. I use the terms reddish and yellowish because there are a ton of copper alloys with colors ranging from nearly silver to a deep red. The whole intent of what the BoD is trying to do is to specify the more commonly available alloys (i.e. yellow brass) as opposed to the higher tech versions. If they allowed plating the tech inspectors couldn't tell what kind of material was being used. A true clear coat won't change the color so that is being allowed so the chassis doesn't tarnish.
As far as hardness is concerned they aren't trying to control that as it would be nearly impossible for the tech guy to check accurately considering the thickness of the chassis material and the need for a hardness tester.
Finally to quote a (in)famous slot car racer, "Why make it harder than it has to be?"
Good post and sums it up, especially the "Why make it harder than it has to be?"
There are bronzes that look just like "brass" and brasses that look just like "bronze". No one in IRRA is qualified to make the distinction. I suggest you guys invest in one of these, X-Ray Metal Identifier , if it's such a problem.
The problem has been solved with the new rule.
The timing of this ruling has nothing to do with Rick finding a supply of "full hard brass".
It has to do with C770 Nickel Brass finding it's way to the tech line at the Sano.
Five, or more, years ago, after I placed an order with my brass chassis vendor, Geary Gaspord/Backtrack.
He shipped me about 6 pcs. of a Brackagra bracket brace/weight, made from that Nickel Brass.
I called him, unhappy.
He assured me it was brass, and sent me the link to the material.
I told him, I get it, but it's just something I didn't want to press/perpetuate, and to not ship me any more parts with it.
I filled a few orders with it, and then brought up a conversation with the BOD and explained how I thought it was a bad idea to continue to make parts with it and assured them it would not continue.
One the entrants at the Sano presented a car at tech with C770 Nickel Brass.
When checking the rules after the race, it was discovered we didn't have anything in the rules stating it was illegal.
Hence, the reason for the update with the additional elements to make the tech director job a realistic one.