Steel Specification Equivalents

[Peter GainParticipant @petergain89847]

Translation from American Specs

[Peter GainParticipant @petergain89847]

Does anyone know the UK equivalent of USA steel specs 12L14 & 1144? A Google search has not been productive.

Peter Gain.

[Keith LongParticipant @keithlong89920]

Hi Peter

According to here 12L14 is the same as EN1A leaded.

Not found an equivalent yet for 1144 but this (a 669 page pdf!!) has jut about all the steels listed in it including 1144. I didn't see a direct equivalent but you can get the composition etc and then look for something suitable – or knowing what it's for, look to see if what we'd normally use in that application here is similar to the spec for 1144.

Happy hunting – you might be reading for some time!!

Keith

ps also look here and here (a Corusamericas pdf) only 8 pages this time – does 226M44 mean anything to you?

Edited By Keith Long on 26/10/2010 15:15:23

Edited By Keith Long on 26/10/2010 15:37:36

Edited By Katy Purvis on 01/06/2015 09:31:56

[Keith LongParticipant @keithlong89920]

Hi again Peter

After a bit more digging it looks as though a number of reputable engineering companies are showing EN8M and EN8DM as pretty much an equivalent of the 226M44. This lists it as a free cutting steel, and other applications suggest it can be hardened. Unless you're making bits for real aircraft I would think you'd be OK with the EN8 or something a bit better.

Keith 

Edited By Katy Purvis on 01/06/2015 09:32:15

[Keith LongParticipant @keithlong89920]

My apologies to anyone trying to follow some of the links above, they’ve got a bit corrupted in pasting them into the posts.

The 669 page pdf on steel spec can be found at this url:-

http://www.tumcivil.com/engfanatic/content/file/board/6-29689.pdf

The Corusamerica pdf is here:- 

http://www.corusamericas.com/file_source/StaticFiles/Business%20Units/International_Americas/Bright_ColdDrawn.pdf

and finally in the second post  this is what “This” refers to:-

http://www.midlandbrightsteels.co.uk/spec.pdf

Why oh why do we still have to have different identities for the same chunk of metal in different countries – getting it all together and having one common (very extensive) series shouldn’t be “rocket science” surely!

Keith

Edited By Keith Long on 26/10/2010 16:35:59

[KWILParticipant @kwil]

EN8 can be through hardened, have used it for a gear hob. Quite nice to work with.

[Chris TriceParticipant @christrice43267]

Kwill can probably confirm this but EN8 is a mild steel with a  modest carbon content, sort of half way between mild and silver steel with a similar mix of machining characteristics. I believe Myford tailstock barrels are EN8.

[David Clark 13Participant @davidclark13]

Hi There

EN8 is a through hardening carbon steel.

If you case harden it it will probably crack.

It is only normally available as round bar.

regards David

[Axel BentellParticipant @axelbentell]

Posted by David Clark 1 on 26/10/2010 18:23:17:

Hi There

EN8 is a through hardening carbon steel.

If you case harden it it will probably crack.

It is only normally available as round bar.

regards David

 Depends how its done. Proly it´s possible to carburize it, let cool slow, then heat to a hardening temp for the carburized skin; remeber the higher the carbon content the lower the heat is needed.  That means the inner core will not harden as much. This needs experimentation though. It´s common in the gun industry.

[Howard JonesParticipant @howardjones35282]

David

there is an opportunity here for someone to do an article or table in model engineer listing the equivalents. often in the articles I’m left wondering if the guy is using something free machining or has a need for a higher duty alloy due to stresses.

here in australia we are also beset with makers names like EN8.

most of my steel is purchased through a Bohler Steel Store and even those guys ditch all the makers descriptions and just use SAE numbers. much simpler.

[Sub MandrelParticipant @submandrel]

EN8 isn’t a makers description – Emergency Numbers were introduced in WWII to standardise production so different foundries could supply material for the same purpose.

 

They were the beginning of standardisation.

 

Neil

[Peter GainParticipant @petergain89847]

Thank you to every one who replied to my enquiry. The replies have been very useful & much appreciated.

Peter Gain.

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