Yes, you're still fine. I'd worry past 80.
Also, hate to break it to you, but it was a waste of money getting the 2500k if you're not going to overclock. The "k" at the end means it's for overclocking, and costs more because of that.
I plan to oc but later when there is a cpu demanding game I will oc no need to oc now I can run every game on max without oc