Looking for a super durable, super tough sword.

Hello, I am looking for a tough sword which can take a hell of a lot of punishment without anything becoming loose, or anything getting worn out and breaking. I am willing to pay up to 1-2 thousand dollars, though I don't want to spend that kind of money if it's not necessary. I need the strongest, most durable sword available anywhere, which is constructed focusing purely on durability and strength, and which doesn't rust or need to be maintained or polished. (preferably with a sword handle which is the blade itself, with no wood or attachments, and with a very strong cross-guard)

I currently own a very cheaply made (cost me $3 total, for the bolt and nut cross-guard) sword which I made myself, constructed of 2 different concentric hollow steel poles I picked up off the street (alluminium center, and probably cast iron outer pole) hammered flat while cold, on concrete. I left the hilt area un-hammered with black tape on it. A single bolt was drilled between the hilt and flattened part as the cross-guard. I burned it a bit just to make it look better, but it still looks very crude with thousands of marks from hammering it flat. You could barely call it a sword, but I like it. It is like a blunt heavy short sword, with a hilt long enough for 2 handed use. Its "blade" is 27-29cm long and 7mm thick and has absolutely no edge or tip whatsoever.

I want a sword which can cut through light steel and break cinder blocks without taking damage or shattering. I tested my current home-made sword on a broken computer, and cut it into small pieces by cutting through and breaking apart each chunk of steel and circuit board with repetitive strikes. The sword took almost no damage, except for a few minor dings (I was surprised.) This is my last sword, the one which has not broken yet, but I have been careful to not break or heavily damage it, because I cannot make a new one like it.

The type of sword I am looking for is a 1 handed short to medium length sword, with a hilt long enough for it to be used 2 handed. I plan to dual wield it with my current best sword mentioned above, because I love dual wielding. Weight is of no concern, but I don't want a long sword or a sword with a hilt designed for 1 hand. Though type does not matter too much, I like the shape of Medieval-type swords and Japanese-style Katana's the most. The thing I care least about is historical accuracy, I want something new, built to be tough, regardless of any sacrifices made to its appearance.

I have bought only one "real" sword in my life, 13 years ago, when I was 8 years old. It was the prettiest sword ever, but was so weak it looked like a mangled snake when I was done smashing it with my custom sword a few years later. I don't like having swords to look at if they aren't as strong as they look. From then I had the idea that all real swords were that weak, or they didn't exist. Then I found Sword Buyers Guide and realized that real swords didn't set when they were bent, or get dented as easily as fake ones.

I recently heard about Angel Swords being incredibly tough, but their swords cost like 20 thousand dollars each. I don't have that kind of money to spend on a sword at this time, though I do want to put all my money towards just ONE good sword which won't break, that is why I need your help. There must be some heavy short sword available somewhere that's very thick, and not so sharp that it loses its edge. Also, I don't know how real swords shatter, if I am hitting solid objects with one, should I be wearing a mask? I have never had to worry about that with my previous swords, they just bent and the metal eventually tore in half.