Carbon Steel Welded Pipes (Tubes), are produced by forming a hollow profile from coil, sheet or plate and welding adjacent edge together, and it could be further processed, either hot or cold into its final dimensions and shapes, and there are different welding means to make pipes, the common means are ERW(Electric Resistance Welding), LSAW (Longitudinally Submerged Arc Welding), and SSAW (Spiral Submerged Arc Welding).