i recently bought a 2 ft by 1/4in by 1 in section of t6-4 grade titanium. i want to make knifes out of it i want to know if it is necessary to heat treat it, if so how do you do it right. i will show you pic of it finished. and i assure you i am not trolling i will even post the link to where i bought it. i did the spark and anodize test it came out positive of ti. http://www.ebay.com/itm/Ti6-4-TITANIUM-FLAT-BAR-STOCK-1-X-250-/130424374788?pt=LH_DefaultDomain_0&hash=item1e5de60604