Types of Joint and Weld Positions (According to AWS / ISO / EN / DIN)

Types of Joint

1. Butt Joint
2. Corner Joint
3. Lap Joint
4. T-Joint
5. Edge Joint

Single-Sided Groove Welds

1. Square Groove – One Side
2. Bevel Groove – One Side
3. V-Groove – One Side
4. V-Groove – One Side with Backing
5. V-Groove – One Side on Square Groove
6. J-Groove – One Side
7. U-Groove – One Side

Double-Sided Groove Welds

1. Square Groove – Both Sides
2. Bevel Groove – Both Sides
3. V-Groove – Both Sides
4. J-Groove – Both Sides
5. U-Groove – Both Sides
6. Bevel Groove – Both Sides (Flared)
7. V-Groove – Both Sides (Flared)

Weld Positions (According to AWS / ISO / EN / DIN)

Fillet Weld Positions

1. 1F – Flat Position
2. 2F – Horizontal Position
3. 3F – Vertical Position
4. 4F – Overhead Position

Groove Weld Positions

1. 1G – Flat Position
2. 2G – Horizontal Position
3. 3G – Vertical Position
4. 4G – Overhead Position

Pipe Welding – Groove Welds

1. 1G – Flat Position, Pipe Rotating
2. 2G – Horizontal Position
3. 5G – Vertical Around Pipe, Pipe Stationary
4. 6G – 45° Inclined Pipe, Pipe Stationary

Pipe-to-Pipe / Pipe-to-Plate – Fillet Welds

1. 1F – Flat Position, Pipe Rotating
2. 2F – Horizontal Position
3. 2F – Horizontal Position, Pipe Rotating/li>
4. 4F – Overhead Position
5. 5F – Vertical Around Pipe, Pipe Stationary

On behalf of Worachart Group, we would like to express our sincere gratitude to Teacher Thares Taping for generously sharing valuable knowledge, which will be beneficial to those who wish to continue their studies in the future.