How many acres are used for agriculture in Indiana? In 2007 at the most recent USDA census of agriculture, there were 14.773 million acres of Indiana being farmed on a total of nearly 61,000 individual farms. This represents a â¦drop of 2% from the 2002 census, and is about 63% of the state's total land area.
Conrad_Turbo. Senior Member. Apr 2005. 210. #1. Welding stainless to mild steel 06-07-2007, 02:52 PM. I have a job coming up where I need to TIG stainless exhaust tubing to a mild steel flange. I recall hearing using 309 filler rod for welding stainless to mild steel.
AWS A5.1/A5.1M is the Specification for Carbon Steel Electrodes for Shielded Metal Arc Welding: E7018 is one of the most common used stick electrodes rods so it will be used as an example. E7018 E = Electrode, The first two digits = tensile strength minimum in ksi of the weld metal 70,000 psi in this case.E7018 The next two or last two digits give the type of coating/covering, type of current and welding position usage. E7018 The third digit of 1 = all position.7018 E = Electrode, The first two digits = tensile strength minimum in ksi of the weld metal 70,000 psi in this case. E7018 The next two or last two digits give the type of coating/covering, type of current and welding position usage. E7018 The third digit of 1 = all position.