High Tensile Welding Neck Flanges are mainly used on heat coupling of pipes when there is possibility of expansion of the section while bending stress on the coupling. These Welding Neck Flanges are made using quality grade raw material that ensures long lasting usage. These Welding Neck Flanges are designed in such a way that facilitates ease of installation. High Tensile Welding Neck Flanges come in different sizes ranging from ¼" to 48".