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ISO steel standard

ISO steel standard

ISO steel standard

(OP)
HI! Where I can find ISO metal designation? For example: EN24T what the type of steel is this,and so on. I need it for  speeds and feeds calculations for CNC. I've tried to find it but found nothing. Thank you very much in advance.

RE: ISO steel standard

EN is a British designation.  I found info on EN steels by searching on UK based search engines.  Use google.co.uk, yahoo.co.uk etc., instead of .com

RE: ISO steel standard

EN24 is a very old designation, in BS 970 (1955)
   = 817M40 in BS 970 (1991).
"A nickel chromium molybdenum steel with high strength and toughness. Used for gears axles and high strength studs. Supplied as rolled, annealed and hardened and tempered. Supplied as black round or square bar and bright round or square, and hexagons." -- http://www.roymech.co.uk/Useful_Tables/Matter/Strength_st.htm

A suffix T  = supplied in the hardened and tempered condition.
For composition, see http://www.macreadys.co.uk/products/usaloy24t.html

The US equivalent is 4340.  From the international alloy crosslisting for 817M40 at
http://www.westyorkssteel.com/Steel_Specifications/caspecs.htm
 

RE: ISO steel standard

(OP)
Thank you very much for advice,I'll try all links.The very first link I've tryed already but the problem is that I need to pay to get rights to look at it,at the moment it impossible for me... :)

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