That's a complicated question. When calculating the price you start with the cost of your materials which includes any consumables such as welding gasses, wire, etc. plus your time to make it (Which of course will vary depending on the skill level of the maker.) multiplied by how much you need to make per hour to make a living. Add in the overhead expenses like electric bill and rent to facility etc. and now you've got the cost! There are also external factors that can affect the retail price such as if you've built a reputable brand that people recognize and desire to have. So in short this is an exceedingly complex question and is why design, product development, and merchandising hold stature as disciplines unto themselves and are studied as such.
The Grade of Rebar we are using for these is no longer available, and we have stockpiled a great deal of it for our work. We use a few different wires for a number of different weldable grades and their special considerations. Rebar is available in different compositions and grades. While some grades of rebar can be welded, some cannot. To better understand which types of rebar can be welded and which cannot be welded, consult your supplier or manufacturers Mill Data Sheets. The chemical composition of steel determines whether it can be welded or not. If the steel has a high carbon content, it will be more brittle, and thus, less suitable to be welded. This type of steel is more likely to fracture when exposed to the stress of welding. Therefore, steel alloys that have a high level of strength are not suitable for welding. As per the Structural Welding Code AWS D1.4, a low-alloy steel rebar is weld-able. This grade of rebar has a steel-to-carbon ratio that makes it suitable to be welded. Not only is it suitable for welding, but the welds can stay together under significant load after it has been sealed in concrete. This is the only type of rebar that can be welded without taking any special considerations into account.
@@raindropsinvirginia A high carbon steel would be something like steel bed frames? Would brazing be suitable, but much slower, for this high carbon steel?
@@alrtgy9642 A modern bed frame is not usually a high carbon like a spring steel, and are usually around A36 or slightly higher alloys, though they tend to have enough carbon to be hardened slightly to get more out of the material per cost. So in that case standard wires could be used for that application, provided they are not a vintage bed frame that is using true spring steel. What a lot of welders I have seen do is overshoot their alloy of filler material, (like they are welding mild steel GMAW but only ever use an ER70S-6 to handle whatever comes their way). If you are using stick (SMAW) a 7018 alloy rod for higher carbon and a 7014 for Mild Steels. Brazing indeed has its place, especially with providing a bond with very high carbon alloys, but it's still a dissimilar material and you don't get the fusion you have with welding. Weld up some material and do a break test.
Also have a look at @weldingtipsandtricks Jody is really quite an incredible resource. Here's a vid on SMAW types ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-N-V4FbP53Cg.html He also has great information on testing, and cut and etch to look at your weld roots.
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