A weld joint is a specific location or edge where two or more pieces of metal or plastic are joined together by welding. The American Welding Society recognizes five primary types of weld joints: butt, corner, edge, lap, and tee joints.
Types of Weld Joints
Butt Joint: Two pieces are placed on the same plane with their edges meeting. This joint is common in structures and piping due to its simplicity and ability to provide a flush weld face.
Tee Joint: Formed when one piece is joined at a 90-degree angle to the middle of another, creating a “T” shape. This joint type is essential in structural steel and tubing applications and often uses fillet welds.
Corner Joint: Two pieces meet in a corner to form either an L-shape (open or closed), often used in frame construction.
Lap Joint: Overlapping two pieces, usually of different thicknesses, creates this joint. It is commonly used in sheet metal work due to its strength and flexibility.
Edge Joint: Edges of two or more parts are aligned together. This joint is generally reserved for pieces not subjected to significant loads or impacts.
Common Weld Types Used in Joints Fillet Weld: Triangular cross-section welds, often used in tee, corner, and lap joints.
Groove Weld: Made in a prepared groove, typical in butt joints requiring full penetration.
Plug/Slot Weld: Fills a hole or slot and is usually used for overlapping plates.
Understand the choice of joint type and weld style is crucial for ensuring mechanical strength, durability, and meeting fabrication standards in different applications.
At Newzel Industries, we manufacture high-precision stainless steel components designed to fit every welding requirement. Whether your project needs butt joints, lap joints, T-joints, corner joints, or highly specialized fabrications — Newzel delivers fully customized stainless-steel solutions built for strength, reliability, and long life.
