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Material hardness in raw state

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Brian Abbott18/01/2019 10:03:47
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Hi all.

A little off topic but does anyone know a material which in its raw supplied state is around the 52 - 54 Rc mark ?

Thanks in advance.

Brian

Michael Gilligan18/01/2019 10:22:46
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According to this page, Brian: **LINK**

https://www.offgridweb.com/preparation/understanding-steel-the-rockwell-hardness-scale/

'420' Steel is in your Goldilocks Zone

MichaelG.

Andrew Johnston18/01/2019 13:08:07
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Plenty of carbon, alloy and stainless steels can meet the requirement after hardening and tempering, but I'm not aware of any sold in a prehardened state. Those that are, like EN16T and EN24T aren't hard enough. There may be some ceramics that meet the requirements, but I haven't looked.

Andrew

JasonB18/01/2019 13:24:29
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What form do you need the material in? Piano wire is only just below that and easily available in small diameters.

HOWARDT18/01/2019 15:17:30
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Any flame hardening steel will achieve this to some depth, or do you require a through hardened steel. In which case look at the tool steels used for mould making. If its commercial Carrs Steel over Birmingham way are very good at giving you a good selection so long as you can furnish them with correct answers to the questions.

Brian Abbott18/01/2019 20:06:29
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Thanks guys for taking the time to repy.

It was something for work, i needed some 25mm thick plate, customer calls for it to be hardened to 52-54, just had something in the back of my mind that there was something available, otherwise i need to heat treat which risks bending the plates.

Not to worry, thanks anyway..

Michael Gilligan18/01/2019 20:15:42
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Posted by Brian Abbott on 18/01/2019 20:06:29:

Thanks guys for taking the time to repy.

It was something for work, i needed some 25mm thick plate, customer calls for it to be hardened to 52-54, just had something in the back of my mind that there was something available, otherwise i need to heat treat which risks bending the plates.

Not to worry, thanks anyway..

.

dont know ... Just curious, Brian ... Was my reference to 420 irrelevant to your requirement ?

MichaelG.

.

A little more detail here: 

https://springsteelstock.co.uk/stainless-spring-steel/420-stainless-steel/

Edited By Michael Gilligan on 18/01/2019 20:22:05

David George 118/01/2019 20:20:12
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Hi Brian what is it for and what sizes do you need. I have a few different steels

CMS 420 x 35mm dia. P20 x25mm dia. And D2 x 20mm dia.

If any are suitable let me know.

David

Andrew Johnston18/01/2019 20:33:31
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Posted by Brian Abbott on 18/01/2019 20:06:29:

It was something for work, i needed some 25mm thick plate..........

Seems pretty clear to me?

Andrew

colin brannigan18/01/2019 21:21:20
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I have used TOOLOX 33 and 44, if I remember rightly that came in at around 420, was used for swaging dies in presses.

Colin

John Reese18/01/2019 23:56:03
733 forum posts

In the US we have AR500. It is an abrasion resisting plate with a Brinell hardness around 500. Nasty stuff to machine.

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