Doing some mods on my old backhoe attachment for my skid steer loader. It uses 1/2" OD steel tube for hydraulic lines and the pressure is 3,000 psi. Connections that I am making don't need to be re-usable. Could I simply make some couplings from mild steel and silver solder the splices? I got the idea when looking at flairing tools in McMaster's. On that page they had an expensive gadget that expands a bell end on steel tube to make splices. New lines would be 1010 steel.