The document specifies the characteristics and dimensions of elongated projections and annular projections for resistance welding of uncoated mild steel from 0,5 up to 3,2 mm thickness. It also includes the appropriate dimensions for tools for manufacturing.
DIN 8519:1996 history
1996DIN 8519:1996-05 Projection for resistance welding of steel sheets - Enlongated projection and annular projection
1996DIN 8519:1996 Projection for resistance welding of steel sheets - Enlongated projection and annular projection
1992DIN EN 28167:1992 Projections for resistance welding (ISO 8167:1989); german version EN 28167:1992