*l₂ (length after welding) depends on l₁ and the welding energy. In the item number XXX has to be replaced by the respective welding element length l₁ (e.g. 030 for 30 mm).

Welding studs for short cycle stud welding

echnical information

Materials

Our welding studs are standardly made from the following materials:. steel, strength class 4.8 (suitable for welding) (according to DIN EN ISO 898-1) with excellent weldability Mechanical properties: yield strength (Re) ≥ 340 N/mm2, tensile strength (Rm) ≥ 420 N/mm2, elongation (A5) ≥ 14%. stainless steel A2-50 (suitable for welding) according to DIN EN ISO 3506-1 Mechanical properties: yield point (Rp0,2) ≥ 210 N/mm2, tensile strength (Rm) ≥ 500 N/mm2, elongation (AL) ≥ 0,6d. stainless steel 1.4571 (suitable for welding) according to DIN EN ISO 3506-1 Mechanical properties: yield point (Rp0,2) ≥ 210 N/mm2, tensile strengt (Rm) ≥ 500 N/mm2, elongation (AL) ≥ 0,6d

The material specifications conform with DIN EN ISO 13918 and DIN EN ISO 14555. For welding studs from other materials please send us your inquiry or contact us. On demand, the material properties can be verified by an inspection document (test report, inspection certificate) according to DIN EN 10204. We are pleased to inform you about weldability to different base materials and welding parameters.

Dimensions

Welding studs dimensions are given in the measurement tables (all dimensions in mm). All standardised welding studs conform to DIN EN ISO 13918. Not standardised welding studs are supplied according to DIN EN ISO 13918. Special welding elements, which are not described, are delivered upon request. Dimensions that are not listed in the measurement tables are delivered upon request.

Surface protection

Standardly our welding studs made from steel 4.8 are supplied with an electrolytic copper plating of 4- 8 µm (according to DIN EN ISO 4042) as corrosion protection. Other surface treatments are possible upon request.

Threads

The threads of the studs are cold rolled (tolerance limit 6g). For surface-treated studs the tolerance limit 6h can be reached. We deliver studs with special threads upon request.

Stud flange

Welding studs for short cycle stud welding have a closely tolerated cold formed flange. The diameter of the flange is always bigger than the external diameter of the welding element (see following drawings and measurement tables). The flange increases the surface area of the stud. Consequently, the stress at the point of weld is reduced and this results in a higher quality of the stud welded joint. Upon request, it is possible to deliver welding studs with flange dimensions other than the ones listed and welding studs without flange. However, we can only recommend the limited use of welding studs without flange – depending on the welded joint requirements. Please contact us for this.

Welding face

Welding studs for short cycle stud welding have a cold formed conical welding face with dimensions closely controlled. The exact dimensions of the welding face are decisive for proper welding results.