HEAVY HOLLOW ROUND BAR

This topic has 10 replies, 8 voices, and was last updated 9 November 2016 at 09:24 by John Stevenson 1.

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8 November 2016 at 14:50 #265441
ray jones 1
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@rayjones1
HI

I planning a project

I am looking for a Heavy hollow round mild steel bar,

ideal size would be

5 inches OD diameter

2.5 inches ID ( not critical as could be bored out to size)

length 7-8 inches

Any ideas of a supplier please

many thanks

ray
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8 November 2016 at 14:50 #24852
ray jones 1
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@rayjones1
8 November 2016 at 15:01 #265443
Brian Wood
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@brianwood45127
Hello Ray,

You might struggle to find that, but if it doesn't need to be hollow to that dimension down the full length, then ordinary thick walled pipe would serve with mild steel plugs at the two ends, bored out to the I/D to suit the project.

I hope that is a useful suggestion
Brian
8 November 2016 at 19:51 #265497
duncan webster 1
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@duncanwebster1
What you are looking for is called 'hollow bar'. What prosaic people we engineers are! One supplier is **LINK**

but nearest they list is 125mm OD * 70 ID or 130 OD, 75 ID. If these are any use give them a ring and ask how to buy it. Sit down first, it's not going to be cheap!
8 November 2016 at 20:03 #265503
John Stevenson 1
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@johnstevenson1
Just checked tonight, only got 3" with 1 /12" bore. Bit of 4 1/2 x 2" bore but only 5" long but got shed loads of 5" solid, at least 15 foot in two different lengths.

This stuff is mega expensive as it's correct title is known as drawn over mandrel, DOM, and so has no seams.

Not checked prices but I'll bet solid is cheaper. Only problem with these sizes are you are not looking for a cheap supplier but a loacl one where you can collect as very heavy and carriage will be as much as the material and remember you are paying VAT on both, but only one you keep
8 November 2016 at 21:49 #265531
Nick Hughes
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@nickhughes97026
Try Steel Express, anything on this list of any use?

**LINK**

Nick.
8 November 2016 at 22:05 #265535
Les Jones 1
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@lesjones1
Scimitar Steels stock 5" solid bar but as you don't give any information on your location it may be too far away for you to collect it.

Les.
9 November 2016 at 07:35 #265559
ray jones 1
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@rayjones1
HI ALL

Thank you for the replies

The item forms part of a press – so needs to be very thick walled

I have located a 5 inch solid , cut to length,

but I will need to bore it out

thank you ray
9 November 2016 at 07:49 #265561
David Jupp
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@davidjupp51506
Just a thought – you might be able to reduce the required thickness quite a bit if you specify an alloy steel of higher strength. Having said that getting hold of anything in small quantities can be tricky. This reminds me a bit of the very high pressure pipes that I come across in my work.
9 November 2016 at 09:14 #265570
Nigel McBurney 1
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@nigelmcburney1
Its a lot quicker and cheaper to bore it out from solid,plus there is a far wider choice of material,e.g. high strength,or free cutting,hollow section steel is not easy to source and it might be difficult to machine.
9 November 2016 at 09:24 #265576
John Stevenson 1
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@johnstevenson1
Proper hollow section or DOM is very expensive to produce and consequently they only use decent steel to produce it and it normally machines up very good.

I buy a lot of offcuts from some of the specialist tube merchants to make bearing rings for motors and none of the stuff I get is general commercial quality, it's similar to EN8 at the least.
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