Alloy steel and heat treating

The place where I got my roll-cage tube from had a lot of alloy tubing in stock as well...4130 for sure, but possibly 4340.

Dillsburg Aeroplane Works
717-432-4589
Dillsburg, PA

They have no website, however they also have the largest steel tube inventory in the country. With a large enough order they'll ship anywhere...I picked mine up (120 ft of 1.75 x .120 DOM) and I got it for $3.05/ft, ordinary dude off the street asking for tubing.

It'd probably be worth your while to call, if nothing else...there's only about 5 guys that work there, and they all know just about everything there is to know about tube (they've all been building tubular airplane frames for years).
 
To my knowledge, there is no such thing as 4340 tubing off the shelf. If you want it, you have to bore solid.

Usually you get 4130 or 4140.
 
Dirk Pitt said:
To my knowledge, there is no such thing as 4340 tubing off the shelf. If you want it, you have to bore solid.

Usually you get 4130 or 4140.
Click to expand...

Could be, looking for Tierod materials and can't see much of a reason to run 4130 unless HT.
 
I've ordered from Dillsburg and had it shipped. There price on the 4130 was cheaper including shipping than to buy DOM locally... I'm in Socal.
call them and they will fax you a current price list. I have built a couple of steering components using 4130 from DB. then ordered up some weld in bungs from Metzer and some Crmo high misalignment rod ends from QA1 and the stuff is solid.
why do you want 4340? 4130 is plenty strong and will take all the abuse you can dish.
 
4130 is marginally stronger then 1020. Comparing 1.25x0.25" 4130 you can't really drop the wall thickness to lose weight. 4340 you can go .125" wall or even 0.095". If I can get 4130 cheaper then cool. I'll give them a call.
 
Well actually the ends. Looking to replace my stock TRE's with rod ends. I have some XAM Aurora ends with a 5/8" shank. I would think they are big enough but not sure on the matrial of the stock TRE's.
 
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