ISO steel standard

[aptaed]

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.

 

[ajack1]

Try this

http://www.key-to-steel.com/default.aspx?ID=News

 

[waterbottle]

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

 

[kenvlach]

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

 

[aptaed]

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...