News aus der Stahlwelt: Entwicklungen und Innovationen bei UnionStahl
DBS 918 002-02: New delivery conditions for structural steel in railroad bridge construction from December 2025
From 01.12.2025, the new DBS 918 002-02 “Technical delivery conditions for structural steels for railroad bridge construction” of Deutsche Bahn will apply.
Post Weld Heat Treatment (PWHT)
Post Weld Heat Treatment (PWHT): Stress relief annealing after welding for safe, standard-compliant components.
Wear-resistant steels at a glance: Properties, areas of application and well-known brands
A comparison of wear-resistant steels: properties, applications and brands such as Creusabro®, Dillidur®, Durostat®, Brinar® – find out more now!
Tensile test in thickness direction – the Z-test simply explained
What is a tensile test in the thickness direction and when is a Z-test necessary? Find out how the Z-value increases the safety of steel structures and which standards apply.
Tensile test of steel – insight into the mechanical properties
The tensile test is a key test method for determining the mechanical properties of steel. Find out more about the procedure, important characteristic values such as yield strength and tensile strength as well as relevant standards for quality testing.
Delivery states of steel and their significance
Discover the different delivery states of steel such as +AR, +N, +QT and thermomechanical rolling. Learn how heat treatments optimize material properties. Learn more now!
Types of test certificates and their significance
Everything about test certificates such as works certificates, acceptance test certificates and specific tests in accordance with DIN EN 10204. Quality assurance in steel production – find out more now!
Weldability of steels: The importance of carbon equivalents
Learn about the importance of carbon equivalents (CE) in welding technology. Discover calculation methods such as CEV, CET and PCM and their application in practice to optimize the weldability of steels.
