What does the 'E7018' electrode designation mean according to CSA/AWS classification?
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A
E = electrode, 70 = cost in dollars, 18 = length in inches
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B
E = electrode, 70 = minimum tensile strength (70,000 psi / 480 MPa), 1 = all-position capability, 8 = low-hydrogen iron powder coating with AC/DCEP
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C
E = electric, 70 = amperage, 18 = rod diameter
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D
E = electrode, 7018 = catalogue number