FOR SALE Inconel Rear axle tie down Brackets

[j-c-c-62]

Ok, here is the deal. These are IMO an upgrade/redesign of the long offered well accepted STD Mopar rear axle steel tie downs.
Over a year ago I offered the vendor to pay any reasonable costs he incurred to build me a few sets of alternate material, like SS or Ti.
He declined. I suggested just build a few sets and see if there is a market for it. No deal. There is IMO nothing wrong with the steel tie down currently offered.
So, after a year of planting the seed, I decided to just do it myself.
I was fortunate enough to acquire some suitable super alloy at a decent cost for the project, Inconel 718 or AMS 5596.
This gave me some additional leeway in the design. I have had many unique items copied in my niche business over many decades, it is a little annoying and few if any of the copies were better.
What I have here I believe is better, but I am not in business to produce them, I have limited amount of material able to be dedicated to this project.
When it's gone, I'm likely done with the project.
Inconel's most widely known attribute is its strength in high temps, like turbo exhaust valves, which obviously does not apply.
Its raw very high strength, high fatigue life and corrosion resistance are useful qualities in this application.
The steel version pictured is .250" thick and weighs 29oz, and steel is usually in the 60Ksi Tensile and 35Ksi yield range.
The break for bending, steel being a softer material leaves a noticeable mark.
The Inconel here is .159" thick and weighs 13oz, I calculate it's about min 2x the strength of the steel offering. Any additional drilling if needed is likely a rather tough task.
Nickel Alloy 718 / Inconel 718 (UNS N07718)- Aircraft Materials There are many sources online for your own verification
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++tensile ksi +yield ksi

Alloy 718 Sheet

AMS 5596 Aged < 0.1874" thick

180​

150​

12​

≥36 HRC

Pair shipped USPS lower 48 $150, does not include nuts. First PAID, First served, these are not for everybody, but it might be hard to find a better solution. PM

They also may polish up real well, but I don't know as I haven't tried

 

[blue_stocker]

As a former DOD machinist, I recall several machining operations on inconel but don't recall it being difficult to cut, just used different cutting tools/carbide/procedures. Of course, I'm used to the old SAE tensile strength qualifications/specs. Sounds very good. Thanks...wb

 

[j-c-c-62]

Thanks.
I mainly wanted to mention it because a fellow member with a hand drill and regular high speed bit dry drilling this is going to be rather disappointed.

 

[blue_stocker]

Yeah. he might try flattening the flute at the cutting edge, using a drill press and keeping the speed under 250 rpm...with a good grade cutting fluid. Since the EPA and the associated 'controllers' have made the old rapid tap/white lead or cintap unavailable I imagine it's not going to be an easy process in a 'dry' mode. There are soluble oils but I don't know if they're available in small quantities...best to him, good luck! He might try metlabcorp.com or cuttingfluidsdirect.com.

A side note for those drilling real soft aluminum or brass type materials that 'grab'...this works good for those materials as well as for drilling hard materials like leaf springs (re-locating alignment pins), even laminated glass (submerged in water with battery powered drill and a back-up piece of wood).also, those holes you might be drilling that are already drilled (like those from the 2-3-4-5, main saddles to the pass side lifter galley, 9/32" drill), no more grabbing or wondering if the drill will break...not with this procedure!