Patreon Thank you Patreon supporters! Through Patreon support I was able to pay for metallography and for the consumables for making coupons and running the CATRA experiment. If you want to support more knife steel research please join us at Patreon.com/KnifeSteelNerds Video Here is the video version of the following information: What is Tamahagane? Tamahagane … Continue reading Testing Tamahagane – Traditional Japanese Steel