I'm new to this , so be gentle, Can I use brass for a linerlock, lock/liner........

I got a case Sodbuster with a brass liner lock in it laying right in front of me. Ya just can't call it a linerlock. The name has a copyright on it.;)

I agree with Hammer....sort of. When I build a prototype for a new knife I use aluminum for the lock. It works but it wouldn't be suitable for a real using knife because it is too soft and the lock would develope slop in the way it fits very quickly.

Brass can be the same way. The important thing to know about brass in this application is that there are many different alloys of brass. Some, like the one used in Hammer's knife, can do the job but the majority of brass alloys are too soft. A lot will depend on how you use the knife, the alloy you choose, and how thick you make the lock. Brass is also very heavy for it's volume so a brass liner will make for a heavier folder.

These can be personal choices and there is no reason not to make a knife this way, especially for learning purposes. I suspect you are thinking of brass because you don't have many tools yet, it's easy to work with, and you know where you can get some. All good reasons. On the other hand, there are also good reasons why you never (at least, I've never seen one) see brass locks used in any liner locks made today in the 'tactical knife' design (thumb stud opening, speed safe, etc).....

Brass can be work hardened at the lock by gently peening it with a hammer prior to cutting the lock. thiis will increase the spring of the metal.

Phosphor bronze can be used for a spring with out peening and is more corrosion resistant than regular brass.