Can you look at this grain?

Rick Marchand said:
Three normalizing cycles are sufficient for grain refinement. Much past that and you enter an area of diminishing returns... and in some cases, issues with hardenability. I would suggest to start a bit higher to make sure everything gets into solution and the grain size is even. Maybe...

1650F cool to magnetic
1550F cool to magnetic
1500F quench in oil
1300F still magnetic, 3 times.

After cold work, I would stress relieve at 1250F, check for straightness, then perform the final hardening at the low end of the austenitizing range for the steel you are using. Of course, if you intend to push the limits of hardness, take it further. I like to play it safe, maintain consistency and utilize well thought out geometry.
Click to expand...

Rick,
How long are you stress relieving?
Is one hour OK? Too short?
 
mete said:
Stress relieving is normally two hours -that should do it .
Click to expand...

Thanks mete!
If using a forge for normalization, how are you getting 1650, 1550, 1500 (obviously easier for you that are experienced) but for the inexperienced, are we looking at the shades of the heated steel? Of course I don't expect this skill to come overnight.
 
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