EN STEELS and their uses

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EN STEELS and their uses

This topic has 17 replies, 14 voices, and was last updated 22 April 2015 at 15:00 by jason udall.

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14 March 2015 at 18:50 #183238
clogs
Participant
@clogs
HI all, sorry it's a dumb question…..

IN THE BODGERSLODGE it's mentioned quite often :-

can someone tell me what the correct name for " EN hardaswitchestits" seems like something quite handy to know…

is there a rough idea's list to describe the common use's of the EN types of steel….

thanks … clogs…
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14 March 2015 at 18:50 #29536
clogs
Participant
@clogs
14 March 2015 at 19:18 #183240
Keith Long
Participant
@keithlong89920
I've just scanned some informnation about En grades and uses from the "Mechanical World Year Book (1963)". I've got it as a pdf document – which I can't post on here, but if anyone woould like a copy please send me your e-mail address by using the "personnal message" facility on here. I can then send it to you as an attachment to an e-mail.

Even though the info is from the 1963 edition, the same tables were reproduced in 1974 so I guess things didn't (and haven't) changed much.

I'm sure that this info is also pretty freely available with a bit of searching around the internet.
14 March 2015 at 19:19 #183241
IanT
Participant
@iant
This whole subject can get very technical and complicated Clogs – but for the layman (e.g. me & you) I find this simple chart covers all of my needs in this area.

**LINK**

Regards,

IanT
14 March 2015 at 20:15 #183243
Neil Wyatt
Moderator
@neilwyatt
One warning – many stockholder have their own colour codes. A chap at my local one seemed to be quite amused that my colour chart didn't match up to their codes.

So always ask, don't just grab stuff off the dexion!

Neil
15 March 2015 at 08:06 #183270
Jesse Hancock 1
Participant
@jessehancock1
Without researching the reasons why British steel codes haven't changed is that the specifications don't change. Other countries like Australia and USA produce good steel and seem to have kept the same codes as the British.

Steel can be likened to cooking with varying ingredients depending on requirements and so, as needs change new steels are concocted to fill the gap.

Maybe the Chinese and Indians have found Kraptenite and have decided to recode their products accordingly.

Edited By Jesse Hancock 1 on 15/03/2015 08:39:18
15 March 2015 at 08:52 #183272
mechman48
Participant
@mechman48
'Kraptonite'… new one on me, but I like it; mind you some of the bolts on my 'made in China' equipment was typically that stuff; changed all to decent 8.8 grade fixings.

George
15 March 2015 at 09:46 #183280
Baldric
Participant
@baldric
I have found this site useful in the past **LINK** it provides quite a bit of information on what the material is suitable for and equivalents.
19 April 2015 at 00:41 #186923
Chris Johns
Participant
@chrisjohns45912
As I understand it EN numbers tend to relate to specific applications so the actual chemistry of the steel may change over time as standards change.
21 April 2015 at 19:53 #187277
duncan webster 1
Participant
@duncanwebster1
EN standards for steel is long obsolete. BS 970:1991 is what I used when still employed, EN3 would be 070M20. Very useful site giving equivalents and typical use at

http://www.roymech.co.uk/Useful_Tables/Matter/Strength_st.htm
21 April 2015 at 20:12 #187281
Capstan Speaking
Participant
@capstanspeaking95294
The EN range of steel specifications was first introduced in 1941 as the War Emergency, British Standard Schedule BS970.

Don't get hung up on the old names. It's now just a turn of phrase like the even older names such as "gunmetal."
21 April 2015 at 21:58 #187300
Manofkent
Participant
@manofkent
A retired toolmaker told me once that EN was short for "Emergency Number", and was introduced as a short term fix in WW2
21 April 2015 at 22:30 #187306
ronan walsh
Participant
@ronanwalsh98054
Anywhere i have worked it has always been en numbers used. Likewise when i go to the special steels supplier they and i use en, unless its for stainless and then its 300 or 400 series , or stuff like p20 tool steels. To me it works well.
22 April 2015 at 09:49 #187350
jason udall
Participant
@jasonudall57142
Do any of the cognoscenti know how to deal with production drawings when quoting for 10k parts year.
Where the material code is “misspelt”.
And this spec . Obviously isn’t made. BUT the customer can’t/won’t change the drawing?.
Customer’s solution was for us to quote on the material as per and apply for concession on each delivery.
22 April 2015 at 10:19 #187357
richardandtracy
Participant
@richardandtracy
Usefully BS 970 is mostly obsolete. Even the ones that replaced the En steels. We now have EN steels, where EN stands for 'EuroNorm' not 'Emergency Number'

The useful ones to know are:

En1A F/C = BS 970:1991/1996 230M07 = BS EN 10277: Steel No. 1.0715

En1A Leaded = BS 970:1991/1996 230M07Pb = BS EN 10277: Steel No. 1.0718

En3B/En32 = BS 970:1991/1996 080A15 = BS EN 10277: Steel No. 1.041

En8DM = BS 970:1991/1996 212A42 = BS EN 10277: Steel No. 1.0727

En16T = BS 970:1991/1996 605M36T. No EN equivalent.

En24T = BS 970:1991/1996 817M40T = BS EN 10277: Steel No. 1.6582

Yes, we have adopted the German number system for steels through the EN system. Which means that a 304 steel is 1.4301, a 303 steel is 1.4305, while a 316L is 1.4404. Good innit.

Regards,

Richard
22 April 2015 at 12:38 #187383
Neil Wyatt
Moderator
@neilwyatt
Harold Hall campaigned tirelessly for us to use 230M07 instead of EN1a, but nonetheless whenever I go to stockholder and ask for 230M07 they say 'do you mean EN1a?'

Neil
22 April 2015 at 12:57 #187387
Capstan Speaking
Participant
@capstanspeaking95294
Posted by jason udall on 22/04/2015 09:49:37:
Do any of the cognoscenti know how to deal with production drawings when quoting for 10k parts year.
Where the material code is "misspelt".
And this spec . Obviously isn't made. BUT the customer can't/won't change the drawing?.
Customer's solution was for us to quote on the material as per and apply for concession on each delivery.

That's a recipe to not get paid.

On the quote add "On the understanding that the supplied material will be grade xxxxxxxx"

When ordered send an acknowledgement "Order accepted subject to the conditions of quote xxxx."
22 April 2015 at 15:00 #187402
jason udall
Participant
@jasonudall57142
Capstan..what we did after throughly establishing that the error did not have a possible metal ( the number system used in spec was of the type 230M07) corresponding ..was it made/possible even if no one stocked it.
…not all alloys possible to describe, are cast .

Oh we could have it made but at a minimum tonnage ( surprisingly small actually) but…it would not have had the required properties. .and the cost…
So we declined. .saying we would be happy to quote to a corrected drawing or different metal. And please find enclosed quote in this material. .
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