Weldmark 2% ceriated tungsten TIG welding electrodes are made with a ground finish, and gray tip for easy at-a-glance identification. Measuring 2 X 7 in, 10 per pack. Rare-earth tungsten electrodes are recommended for short welding cycles on low-amp, DC orbital tube, pipe, thin sheet and small part applications. Provides low current and arc ignition with good arc stability. This tungsten is not recommended for higher applications. The oxides that are contained tend to migrate very quickly to the heat at the tip of the electrode.