1095 Carbon is the most popular 10-series standard carbon steel (about 1% carbon) with low corrosion resistance and average edge retention properties. Why would you want 1095 steel?  The appeal here is 1095 is a tough steel that’s resistant to chipping, it’s easy to sharpen, takes a crazy sharp edge and is inexpensive to produce.  This makes it desirable for larger heavy duty fixed blades and survival knives which are going to be subject to more abuse than your typical EDC.  Many manufacturers will coat their 1095 knives to delay the onset of any corrosion but a simple oil treatment will do the trick.