Achieving hardness on en36 1

[wittyrohit]

how can we achieve HRC 50 on EN36 of Diameter 40 MM so as it does not become brittle.

 

[metengr]

It would appear from the information below you will not achieve a core hardness of HRC50 for a section thickness of 40mm, oil quenched;

http://www.interlloy.com.au/data_sheets/case_hardening_steels/en36a.html

 

[arunmrao]

EN36 is a case hardening steel . Popularly used for gears, sprockets etc. You will not achieve those hardness at the core .

_____________________________________
"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year

 

[salmon2]

Is water quenching appropriate given it's low C? Just curious, not my thread.

 

[wittyrohit]

i require case hardening only but the material should not become brittle.

 

[arunmrao]

I have rarely seen them water quench. It is always oil quenched . It is very unlikely that with a carbon of around 0.15% it is possible to get RC50 in the core(of course it does have about 3.5%Ni and Cr about 0.8%)

_____________________________________
"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year

 

[arunmrao]

i require case hardening only but the material should not become brittle.

If this statement is correct,why did you ask for 50 RC in the core. Your question was misleading


_____________________________________
"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year

 

[salmon2]

Yes, I agree the low C won't ger 50Rc even at fully quenched condition. Very unlikely, maybe 40+ as quenched.

Sorry, wittyrohit I hacked your thread. This steel at QT condition shouldn't be brittle but maynot get 50Rc. But you can get it on surface by carburizing it.