What Is The Recommended Lens Shade For Most Oxyfuel Welding Applications?
What Is The Recommended Lens Shade For Most Oxyfuel Welding Applications? A number 4 shade lens is minimum for oxy-fuel gas welding and cutting. What is the minimum filter shade level for oxyfuel cutting? For gas welding and oxygen cutting operations, a Shade 3 up to a Shade 8 is required depending on plate thickness.