Comments by "Savage22 Bolt" (@savage22bolt32) on "Destruction Test - D2 vs. AUS8 vs. SK85 - Which is the better steel?" video.

Intelligent comment. I was just going to say the same thing!
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The rust on the SK85 carbon steel blade gives it character. I'm still using my grandma's carbon steel kitchen knives 80 - 100 years old! For general purpose outdoors knives, various grades of stainless work good for me.
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@vikingskuld Generally speaking, D2 is chosen for it's ability to attain high hardness. Often it will be heat treated (hardened & tempered) to 62-64 on the Rockwell C scale. Tempering at a higher temp can bring hardness down to RC 58-60. Double tempering at an even higher temp can bring the hardness below RC 58, which would be tougher than the higher RC numbers. D2 is a through hardening steel, and is great for punches & sheet metal forming dies. It may be used to make hot forging dies, but there are tougher steels that are better for that purpose. Been retired a few years, & going from memory. I'm sure you will correct me if I have it wrong.
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@vikingskuld i believe you know your stuff. I never made a knife, worked in aerospace. Loved the field trips to the closed die forging companies.
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