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.

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.

Autogenous blanks made of 450HB wear-resistant steel – precise, durable, immediately available. UnionStahl offers strong solutions for recycling & industry.

Our warehouse employees now wear new, comfortable and fashionable work clothes – including a weekly laundry service for maximum comfort in their day-to-day work.

UnionStahl invests in sustainable mobility and actively contributes to reducing CO₂ emissions

UnionStahl looks back on a successful bauma 2025. The focus was on wear-resistant steels for use in the construction machinery sector.

Precise flame-cut parts up to 4,000 mm wide: UnionStahl offers high-quality oxyfuel, plasma and laser cutting. Efficient planning & fast delivery. Find out more now!

UnionStahl achieves DIN 2303 qualification class 2! Certified expertise for safety-critical welding work on steels and AlZnMg alloys. Discover the highest precision and quality.

Laser cutting and Creusabro® – the perfect combination for high-precision and wear-resistant components. Find out how UnionStahl uses state-of-the-art technology to realize precise cuts with minimal post-processing.

High-performance steel for maximum efficiency: Creusabro® offers outstanding wear protection and extends the service life of machines and systems. Find out in recycling aktiv how UnionStahl reduces costs and minimizes downtimes with innovative materials.

Find out more about the benefits of Creusabro in asphalt processing.

Maximum efficiency & safety: UnionStahl relies on the EasyGrinder from Teqram for automated finishing of flame-cut parts. Find out more about the innovation!

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!

Construction machinery must be able to withstand extreme loads – and increasingly sustainably. UnionStahl offers the perfect solution for this

February 2025 is full of exciting developments! We summarize the most important events in our article.

Wear and tear is a major challenge in many industries. Robust materials that are not only resistant but also durable are essential here.

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!

Efficient steel processing with the latest plasma system: UnionStahl optimizes work processes and supplies ready-to-install components from a single source. Learn more!

January 2025 is full of exciting developments! We summarize the most important events in our article.

Union Stahl invests in sustainability: with two new electric forklift trucks (5 tons load capacity), the company is reducing CO₂ emissions and making logistics more efficient.

Find out how UnionStahl manufactured racks from high-strength S690QL1 steel with Z35 testing for the general overhaul of a jack-up rig. Precision, resilience and quality management for maritime requirements.

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.

December 2024 is full of exciting developments! We summarize the most important events in our article.