Thread: Looking for a piece of hollow bar

Try Interlloy or Bohler Udderholm, that's where I go for that type of steel.

Their minimum qty might be half a meter plus a cut charge.

Hollow bar costs a decent amount more than solid bar because of the manufacturing process.

There is a place here in Adelaide that does hollow bar (the name will come to me some time today). They have a minimum order value of $100 (not inc. GST). As a result off cuts do accumulate. I have a spare metre of 50x30 hollow bar as well as a piece of 120x70, 300mm long.
I could get some and put it on a courier if that is a help. Minimum weight will be about 12kg though.

Michael

On edit: it is Bohler steel

G'day Joe.

Would you consider Cast Iron hollow bar? Flocast show a 80 / 45. I pretty sure they cut to length.

http://www.flocast.com.au/CENTRIFUGA...WEIGHTS%20.pdf

They still even take cheques. They are only up the road from me, so I could pick up for you.

Contact Us : Manufacturer of Cast Iron Bars,Copper Alloys Brass,Hollow Bar Use the dispatch email address for Luke.

Regards Phil.

Hi Joe,

I'd take a trip up to Rich River Dealers in Echuca, and have a rummage in their scrap, I'm pretty sure I saw some hollow bar of around that sort of size..

Regards
Ray

we have some 4140 about the right diameters, but not long enough. But it makes me think you might be able to get what you need from a scraped hydraulic cylinder?
-Josh

Originally Posted by Brobdingnagian

we have some 4140 about the right diameters, but not long enough. But it makes me think you might be able to get what you need from a scraped hydraulic cylinder?
-Josh

I didn't check the size on that stuff, but that came from GV Engineering, I'm sure they had more in stock. It's used for making hydraulic stuff.

Regards
Ray

Thank you all for the suggestions and offers!
Phil, I thought about it but think cast might be a bit risky - the length is there to allow me to position the vertical head out a bit from the machine column. It might then be at risk from shock (when I make amistake).... Steel might be a bit more forgiving....

I think I must take a drive to Echuca in any case - might even drive back via Kyabram and Shepparton

Watching the deep hole thread stated by Stuart with great interest as well!

Originally Posted by jhovel

Thank you all for the suggestions and offers!
Phil, I thought about it but think cast might be a bit risky - the length is there to allow me to position the vertical head out a bit from the machine column. It might then be at risk from shock (when I make amistake).... Steel might be a bit more forgiving....

If you can break a piece of cast iron that big, you've got bigger problems than the relative strength of steel to cast iron.

Biggest advantage of steel is the ability to weld bits to it, otherwise I'd use cast iron myself. I like the stuff.

PDW

Hi Joe,
If you have to buy new you can always use 3d cast iron, if indeed you are worried about the strength. But the rest of the machine will be grey cast iron so depending on how your bar is mounted it won't really make a difference to overal strength.

Cheers,
Ew

Hi Joe,
To Save you a trip, Rich River Dealers, have nothing suitable. (spent the day in Echuca)
tinkera

Psst, Ray,



We have outsiders raiding our favourite scrappy.

Ken

Originally Posted by Toggy

Psst, Ray,



We have outsiders raiding our favourite scrappy.

Ken

Ha!.... no drama, so long as they don't find the good stuff....

Regards
Ray

Well, encouraged by Stuart's success in deep hole drilling, I had a go at drilling my solid 3" bar through on a friend's bigger lathe.
It worked like a charm! I had made a long extension for a short reduced shank drill an silver soldered it on. Looked good, but didn't work well at all. It is a cheep Chinese drill and I think they forgot to harden it....
Fortunately my friend Peter has lots of drills and I ended up drilling it from both ends, meeting in the middle PERFECTLY! Not a step of any kind visible. The the bar is now 360mm long and the through hole is 28mm.
uploadfromtaptalk1373816402136.jpg
Cheers,
Joe