Titanium Control Arms
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Originally Posted by BADZ
Here are the lite weight lca's and are solid!!!!
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Are they completely solid? Wouldn't they be a little stronger if they were drilled out a bit?
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Originally Posted by John95Z28
I wonder if anybody makes subframe connectors out of Ti? They'd be good and stiff, since Titanium is twice as strong as steel, for half the weight. Probably not worth the exorbitant cost - $1000(?)
While I'm here
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
If you want top strength subframe connectors get them made from quality American or British sourced ChroMoly (Chromium Molybdenum) Steel.
#26
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Originally Posted by Cheatin' Chad
Good AL (Aluminum) is "stronger" than mild steel. Ti (Titanium) even 6AL 4V(vanadium) is not as "strong" as good steel.Let alone twice as "strong". Some types of AL are superior to Ti under specific loads.
But for the record, Titanium IS roughly twice as strong as Steel, when comparing oranges to oranges:
Material yield point (strength) at 20 degrees:
Titanium gr.5 alloy: 830 min.MPa
Stainless Steel 13% Cr <410>: 350 min.MPa
When cost isn't an factor (like with fighter jets and nuclear subs) Titanium is used all over the place
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Originally Posted by John95Z28
I guess it all depends on what materials you're comparing. Pure aluminum is soft like butter, iron is quite a bit harder + stronger but needs to be cooked into steel & mixed with a whole bunch of other metals to become a handy recipe like chromemoly steel. I doubt that those over-kill LCA's are made of a top grade Ti alloy, which makes them even more 'not worth it' IMO. When I said that Titanium would be great to make subframe connectors out of, I was being facetious because well-designed SFC out of a decent Ti alloy would be hugely expensive; a good steel alloy would do just fine in its place.
But for the record, Titanium IS roughly twice as strong as Steel, when comparing oranges to oranges:
Material yield point (strength) at 20 degrees:
Titanium gr.5 alloy: 830 min.MPa
Stainless Steel 13% Cr <410>: 350 min.MPa
When cost isn't an factor (like with fighter jets and nuclear subs) Titanium is used all over the place
But for the record, Titanium IS roughly twice as strong as Steel, when comparing oranges to oranges:
Material yield point (strength) at 20 degrees:
Titanium gr.5 alloy: 830 min.MPa
Stainless Steel 13% Cr <410>: 350 min.MPa
When cost isn't an factor (like with fighter jets and nuclear subs) Titanium is used all over the place
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
Typical Strengths of common materials,103psi
Ultimate Tensile Yield : Sty / Ultimate Tensile Strength (pulling) =Stu
Ultimate Compressive Yield : Scy/ Ultimate Compressive Strength (crushing)=Scu
Ultimate Shear Yield : Ssy / Ultimate Shear Strength (slice through) =Ssu
Sty/Stu Scy/Scu Ssy/Ssu
1045 Steel : P.S.I x1,000 50-150/80-180 50-150/80/180 38-110/60-130
Titanium : P.S.I x1,000 75-140/85-180 15-25/25/40 n.a/55-110
Ultimate Tensile Yield : Sty / Ultimate Tensile Strength (pulling) =Stu
Ultimate Compressive Yield : Scy/ Ultimate Compressive Strength (crushing)=Scu
Ultimate Shear Yield : Ssy / Ultimate Shear Strength (slice through) =Ssu
Sty/Stu Scy/Scu Ssy/Ssu
1045 Steel : P.S.I x1,000 50-150/80-180 50-150/80/180 38-110/60-130
Titanium : P.S.I x1,000 75-140/85-180 15-25/25/40 n.a/55-110
Note: 1045 steel is a medium carbon steel.It is nowhere near the "strongest" steel manufactured. It is mid-pack as far as steel goes.
Ti is used for a multitude of reaons. Onoe of the major reasons is it's resistance to certain chemicals and corrosion. The USSR had so much of the stuff and so few buyers it skinned almost all of it's Subs built since the early 90's with it. It definitely is a wonderful metal with fantastic properties. In certain applicatios there is no better material to use.However, it is not "stronger" than every steel.
EDIT: Note the strength of Ti in compression. This figure is directly relevant to it's use as a lower control arm. Ti in my opinion would be a poor choice for something used mainly in compression.
Last edited by Cheatin' Chad; 05-04-2004 at 01:11 AM.
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Chad, thanks so much for the metallurgy lesson. Not sure of the relevance to the main topic at hand, but I've been enlightened nonetheless. Obviously you put in the research time for your reply. I now see the error of my ways.
BTW - I picked the stainless steel alloy pretty much at random from a chart, because of the Cr content (Chromium to those non-metallurgists out there). And to clarify, I don't think I proclaimed Titanium as a magic metal which is always better than ALL steel alloys. Steel is a wonderful material, and so is Titanium; let's leave it at that
Jeff; what is this GP you speak of? Is there a website with more information?
BTW - I picked the stainless steel alloy pretty much at random from a chart, because of the Cr content (Chromium to those non-metallurgists out there). And to clarify, I don't think I proclaimed Titanium as a magic metal which is always better than ALL steel alloys. Steel is a wonderful material, and so is Titanium; let's leave it at that
Jeff; what is this GP you speak of? Is there a website with more information?
#32
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Originally Posted by BADZ
We are doing a GP, check it out if your into lite weight pieces that work!!!
GP = Group Purchase
For a moment there I thought you were talking about something totally different.
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Originally Posted by Cheatin' Chad
You're going to compare it to stainless?
Note: 1045 steel is a medium carbon steel.It is nowhere near the "strongest" steel manufactured. It is mid-pack as far as steel goes.
Note: 1045 steel is a medium carbon steel.It is nowhere near the "strongest" steel manufactured. It is mid-pack as far as steel goes.
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Originally Posted by BADZ
I cut low consistant 1.3x 60ft's on mine!! They have been tested for strength issues!!!
HA!!! 1.3!!!, ya call that a real test...
![1poke](https://ls1tech.com/forums/images/smilies2/1poke.gif)
Let me know when you get 1.29999999999... then we'll talk.
[/SARCASM]
#39
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Originally Posted by BADZ
Sorry, mine are still the lightest and with rod ends!!
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Do these lighter lca have relocation brackets to go with them? and which one is the lightest......???? Also, are they lighter than metco lca's????