Q: Specialized A1 алюминий - что это?

[May Day]

Не знает ли кто, часом? Подозреваю, что все - таки 7005 или 6061, но, может, кто в курсе?

[o-leg]

material selection and needs
Question
could you tell me what grades and types of aluminium you use in the production of your M4 and FSR bike frames please?


At 01/25/2001 01:28 PM you wrote -
Thankyou for you reply. I know it is a hard market and you may not want to
give away any trade secrets, but I am doing a physics project, where I need
to find the properties of a material and give a presentation on them. Could
you tell me what materials you use to alloy the aluminium in the M4 frames.
I don't need precise amounts, just a vague idea.

Once again thanks for your reply

ste slater



At 02/01/2001 09:53 AM we wrote -
Thanks again, its a good job I've got another week to do this physics
project. Another thing I thought of was how are the M4 tubes welded, is it
the same as every other aluminium welding process? What is the normal
aluminium welding process? Hope I'm not asking to much. And tell who ever
designed the new FSR's that they look great and I can't wait to ride one.
Thanks again, Ste Slater
Answer
At 01/24/2001 01:44 PM we wrote -

Thanks for your message. Most Specialized FSR frames, with the exception of the S-Works FSRxc, are made with A1 Premium Aluminum. A1 is an exclusive aluminum material, design, and manufacturing process that gives Specialized engineers complete control over every part of the process of turning raw materials into finished frames. The raw material from which an A1 frame is built starts as a 6000-series aluminum alloy. The specific numeric designation is not published.

M4 Manipulated Alloy is a proprietary material that is comprised mostly of alumninum, but is alloyed with four other metals in precise trace amounts. The result is an alloy that hase nearly twice the tensile strength of "standard" 6061 aluminum, plus excellent fatigue resistance and elongation properties.

It's the % elongation of M4 that allows us to build frames with very complex shapes and greatly varied wall thicknesses. The end result is a frame that's lighter, stiffer, stronger and more durable. Relative to A1, it's also significantly more expensive.

Happy Trails,
Specialized Bicycle Components

At 01/26/2001 01:25 PM we wrote -

No worries...

I am not aware of a standard numerical designation for M4, so I can't accurately call it "6061" or "7075" or any other common number. However, the base aluminum material is alloyed with: silicon, copper, magnesium and vandadium, though not necessarily in that order. Four alloying materials, hence the name "M4".

Hope this helps,
Sean

At 02/09/2001 11:01 AM we wrote -

Howdy,

The exact welding process applied to M4 is unknown to me. Best guess is that it must be somewhat different than the process used w/ A1 or "standard" aluminum. Welding spec's are dependent on a number of variables: material, wall thickness, etc.

Thanks for the positive feedback on the FSR! I'll pass that along.

Tailwinds,
Sean




Из чего следует что А1 из линейки 6000 алю как и М4, а М2 и М5 из 7000 люминя