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| Reply To: | (Leadfree Electronics Assembly Forum) |
| Date: | Thu, 10 Aug 2006 16:07:34 -0700 |
| Content-Type: | text/plain |
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Genny,
Things like 6061 aluminum are standard alloys of known composition. For example, 6061 is:
Component Wt. %
Al 98
Cr 0.04 - 0.35
Cu 0.15 - 0.4
Fe Max 0.7
Mg 0.8 - 1.2
Mn Max 0.15
Si 0.4 - 0.8
Ti Max 0.15
Zn Max 0.25
Regards,
Brian Epstein
Sr Regulatory Compliance Engineer
Veeco Instruments
[log in to unmask]
ph 805-967-2700 ext 2315
fx 805-967-7717
ce 805-591-9587
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of Genny Gibbard
Sent: Thursday, August 10, 2006 10:32 AM
To: [log in to unmask]
Subject: [LF] Metal compliance
Anyone else having major difficulties getting RoHS compliance statements
out of your metalwork suppliers?
We have companies that provide things like chassis parts, custom
standoffs, etc. They are made of things like 6061 Aluminum, stainless
steel, etc. These are things that can use the exemption:
6. Lead as an alloying element in steel containing up to 0.35 % lead by
weight, aluminium containing up to 0.4 % lead by weight and as a copper
alloy containing up to 4 % lead by weight.
However, our metalwork vendors are having trouble getting any sort of
statement out of their raw materials suppliers, so they are reluctant to
issue statements to us.
I don't know if it would be an unlikely thing to have higher than the
0.4% Pb in aluminum, or if you need to have some carefully controlled
source of aluminum in order to achieve that.
Any thoughts?
As always, your help is much valued and appreciated.
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