| Bezeichnung der Schweißelemente nach DIN EN ISO 13918:2018 (Designation of welding elements according to DIN EN ISO 13918:2018) | Werkstoffe Schweißelemente (Material welding elements) | DIN Norm / ISO (DIN/ISO standard) | Mechanische Eigenschaften (Mechanical properties) |
|---|---|---|---|
| FD MD PD RD UD ID | 4.8 (schweißgeeignet / welding suitable) | ISO 898-1 | Rm ≥ 420N/mm² ReH ≥ 340N/mm² Bruchdehnung A5 ≥14% (elongation at break) |
| FD MD PD RD UD ID | A2-50 (schweißgeeignet) Stainless steel AISI 304 (welding suitable) | ISO 3506-1 | Rm ≥ 500N/mm² Rp0,2 ≥ 210N/mm² Bruchdehnung AL ≥0,6d (elongation at break) |
| SD | SD S235J2+N (S235J2G3) + C450 | ISO TR 15608 DIN EN 10025 | Rm ≥ 420N/mm² ReH ≥ 350N/mm² Bruchdehnung A5 ≥15% (elongation at break) |
| SD | 1.4301 (X5CrNi18-10) (AISI 304) 1.4303 (X6CrNi18-12) (ASI 305) | ISO 15510 | Rm ≥ 420N/mm² ReH ≥ 350N/mm² Bruchdehnung A5 ≥15% |
| PS US IS | 4.8 (schweißgeeignet / welding suitable) | ISO 898-1 | Rm ≥ 420N/mm² ReH ≥ 340N/mm² Bruchdehnung A5 ≥14% (elongation at break) |
| PS US IS | A2-50 (schweißgeeignet) Stainless steel AISI 304 (welding suitable) | ISO 3506-1 | Rm ≥ 500N/mm² Rp0,2 ≥ 210N/mm² Bruchdehnung AL ≥0,6d (elongation at break) |
| PS US IS | CuZn37 | EN 12166 | Rm ≥ 370N/mm² |
| PT UT IT | 4.8 (schweißgeeignet / welding suitable) | ISO 898-1 | Rm ≥ 420N/mm² ReH ≥ 340N/mm² Bruchdehnung A5 ≥14% (elongation at break) |
| PT UT IT | A2-50, A2-70, A4-50, A4-70, A5-50, A5-70 (schweißgeeignet / welding suitable) | ISO 3506-1 | Rm ≥ 500N/mm²-700N/mm² Rp0,2 ≥ 210N/mm² Bruchdehnung AL ≥0,6d (elongation at break) |
| PT UT IT | CuZn37 | EN 12166 | Rm ≥ 370N/mm² |
| PT UT IT | N AW - Al 99,5 (1050A) | EN 573-3 | Rm ≥ 100N/mm² |
| PT UT IT | EN AW – AlMg3 (5754) | EN 573-3 | Rm ≥ 180N/mm² |
The strength values of welded components according to DIN EN ISO 13918 are key determinants of the load-bearing capacity, yield strength, and tensile strength of a welded joint in industrial practice. The mechanical forces that a threaded stud or head bolt can sustain over time after the joining process depend directly on the selected material and its suitability for welding. In this technical field, Bolzenschweißtechnik bsk + BTV GmbH provides a verified overview for designers, quality inspectors, and production planners in the mechanical engineering and steel construction industries. To monitor these loads in accordance with standards, all components used must meet strict criteria. You can find the detailed regulatory requirements on our information page regarding DIN standards for stud welding.
Strength Values of Welding Elements for Steel and Stainless Steel
The table summarizes the most important mechanical properties of common fasteners. For example, standard welded studs in strength class 4.8 according to ISO 898-1 have a tensile strength (Rm) of at least 420 N/mm² and a yield strength (ReH) of 340 N/mm² with an elongation at break of at least 14 percent. For stainless steel, such as the weldable material A2-50 (AISI 304 / 1.4301) per ISO 3506-1, the tensile strength is at least 500 N/mm². These precise strength values guarantee a process-reliable design.
What are the specifications for aluminum and brass weld studs?
Precise stress characteristics are also essential for materials other than steel and stainless steel. For tip ignition and capacitor discharge, welding elements made of brass (CuZn37 according to EN 12166) with a tensile strength of at least 370 N/mm² or of aluminum materials are frequently used. Pure aluminum bolts (EN AW-Al 99.5) achieve a tensile strength of at least 100 N/mm², while the stronger AlMg3 alloy (EN AW-5754 according to EN 573-3) has a tensile strength of at least 180 N/mm². The reliable determination of these properties and the subsequent welding process strictly adhere to the guidelines of DVS Information Sheet 0901, available from DVS Media.
How do accurate material data ensure quality in your manufacturing process?
Adherence to the mechanical material specifications reliably prevents component failure under static or dynamic loads. As an experienced partner in custom machine building and stud welding technology, bsk + BTV GmbH precisely tailors the equipment and welding elements (such as PT and MD threaded studs or internally threaded studs) to your specific design requirements. Do you have questions about specific elongation at break, strength classes for special studs, or your specific application in your operation? Simply send us an email at info@stud-welding.de—the experienced team at Bolzenschweißtechnik bsk + BTV GmbH will be happy to assist you with personalized advice.
