For all practical purposes 7075 is NOT weldable and essentially all grades
of 6000 series IS weldable (there is one 6000 alloy that isn't weldable but
it is very uncommon).
> -----Original Message-----
> From: Brad Bradfield [SMTP:b_bradfield@yahoo.com]
> Sent: Thursday, June 21, 2001 8:31 AM
> To: Hank Lonberg; towertalk@contesting.com
> Subject: Re: [TowerTalk] 7075-T6 Aluminum
>
>
> Also, one of these alloys can be welded and the other can't, I believe.
> Is it the 6000 series that can be welded?
>
> 73,
>
> Brad, W5CGH
>
> ===========
>
> --- Hank Lonberg <kr7x@gte.net> wrote:
> > Okie Doke Pete:
> >
> > Lets get to know the alloys and treatment.
> >
> > 6000: (6061)
> >
> > A silicon and mangnesium alloy of aluminum. Heat treatable very
> > versatile with good formabliliy and corrosion resistance, medium
> > strength. Very common alloy. Tensile yield strength 6061-T6: 40,000
> > psi.
> > E=10,000,000 psi.
> >
> > 7000: (7075)
> >
> > A zinc alloy of aluminum. Heat treatable, high strength. Used in
> > air-frame structures and highly stressed parts. Tensile yield
> > strength
> > 7075-T6: 67,000 psi. E=10,000,000 psi.
> >
>
>
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