Reliable solutions for maximum service life:
Learn in 5 concise facts how you can significantly reduce abrasion, corrosion, and thus unplanned downtime.
Steel structures in hydraulic engineering face unique challenges: from constant moisture to mechanical stresses from currents and sediment. Deloro’s new expert guide provides a concise overview of what truly matters, addressing both corrosion protection and material selection.
Whether lock gates, weirs, or bank reinforcements: this guide offers practical knowledge for planning and implementing steel hydraulic engineering projects.
Premium‑Verschleißschutz für Stahlwasserbau‑Bauteile
Im Stahlwasserbau entscheiden robuste Werkstoffe und ein zuverlässiger Oberflächenschutz über die Lebensdauer und Sicherheit von Anlagen. Gerade Schützlaufschienen wie die A65-Schiene sind täglich enormen Belastungen durch Abrieb, Kavitation und Korrosion ausgesetzt. Ein wirkungsvoller Verschleiß- und Korrosionsschutz im Stahlwasserbau ist daher unverzichtbar. Auch, um die Anforderungen nach DIN 19704 zu erfüllen und langfristige Betriebssicherheit und minimale Wartungsfenster zu gewährleisten.
Ultimet® as surface protection in steel hydraulic engineering
Advantages of an Ultimet® coating at a glance.
The cross-sectional image shows the surface protection applied by laser cladding in the upper area
Deloro Ultimet® alloy combines exceptional mechanical properties with excellent processability, making it ideal for demanding weld overlay applications. It is characterized by high hardness combined with excellent ductility and offers very high impact resistance, making it particularly resistant to mechanical stress.
A key advantage is its crack-free weldability, which enables safe and reliable coating even on critical components. The small heat-affected zone and excellent metallurgical properties also result in minimal rail deformation during coating, which significantly improves dimensional accuracy and component quality. This is complemented by the alloy’s high tensile strength and pronounced toughness, making Ultimet® a high-performance solution for applications subject to wear and corrosion.
Cross-section of an A65 rail
The A65 rail, conforming to the standard, is a key structural element in lock gates. It plays a load-bearing role in guiding, sealing, and transmitting the forces of movable steel hydraulic engineering components. The underlying standard defines precise geometric dimensions, tolerances, material requirements, and load-bearing capacities. These ensure operational reliability, interchangeability, and the fatigue strength of the rail profiles under high mechanical and hydraulic stresses. Particularly in lock operation, consistently high compressive forces are at work. Abrasion from sediment and corrosive influences also affect durability. Therefore, the A65 rail must be specifically combined with wear and corrosion protection solutions.
As a one-stop supplier for steel hydraulic engineering, Deloro offers an integrated range of services: from the supply of standard-compliant A65 rails and the application of high-performance wear-resistant alloys such as Ultimet® to technical consulting and project-specific customization. This holistic performance concept enables operators and engineering firms to optimize the service life of the protection systems while simultaneously reducing maintenance and downtime costs.
Laser cladding at Deloro stands for the highest precision, efficiency, and quality in surface coating. The process is also used for component repair. The targeted and controlled energy input results in minimal heat input. This protects the material and preserves the metallurgical properties of the base material. At the same time, this ensures minimal distortion, even with complex or delicate components.
Another crucial advantage is the precise material deposition. The laser enables the exact placement of the filler material, reducing material waste and achieving uniform layer thicknesses. The result is a high-quality coating with excellent mechanical properties, such as high wear resistance, optimal adhesion, and a long service life for the coated components.
Furthermore, laser cladding at Deloro is fully automated and reproducible. This ensures consistently high process reliability, consistent quality, and efficient series production. The combination of state-of-the-art laser technology and Deloro’s materials expertise results in customized solutions for demanding industrial applications.
Deloro pursues a unique 360° approach to wear protection, which clearly sets the company apart from its competitors. This holistic perspective means that Deloro is not just a product supplier, but also a user of its own alloys, materials, and welding and coating processes.
This approach gives Deloro a decisive advantage: The company continuously gathers practical experience from its own applications and can thus develop solutions for tomorrow’s challenges today. Every customer feedback and every improvement flows directly into product development.
The 360° perspective encompasses the entire product lifecycle – from development support and the delivery of ready-to-install components to process optimization. Deloro thus offers comprehensive consulting and support from a single source. This holistic view enables the company to not only supply customers with individual products, but to implement complete wear protection solutions – whether through engineering services, customized alloys, filler materials, or complete PTA welding systems.
Complete vertical integration is one of Deloro’s key competitive advantages. By performing virtually all production steps in-house, the company creates tangible added value for customers that extends far beyond mere product quality.
Customer-specific developments and sensitive product information remain within the company. This closed manufacturing chain minimizes the risk of knowledge loss or unintentional technology transfer – a crucial factor for companies in innovative or safety-critical industries.
For over 115 years, Deloro has perfected this integrated manufacturing approach, offering a combination of innovation, quality, and reliability that is unparalleled in the industry.
Deloro specializes in high-performance engineering services for wear protection and has been providing reliable solutions for extremely stressed metallic components for over 115 years. Complete vertical integration – from material development and design to prototyping and series production – guarantees the highest quality, flexibility, and fast delivery times. Research and development focus on innovative cobalt-, nickel-, and iron-based alloys, as well as state-of-the-art manufacturing technologies. The engineering team provides support through consulting, process analysis, and economically optimized wear protection concepts, offering customized component manufacturing and the reconditioning of worn components. Comprehensive quality assurance, international certifications, and precise testing procedures ensure maximum reliability. Through transparent collaboration, qualified suppliers, and efficient logistics, Deloro delivers sustainable, durable, and cost-effective high-performance solutions worldwide.
We offer personalized consultations.
Christian Grube
Email: christian.grube@deloro.com
Telefon: +49 261 80 88 920
Here we have compiled the most important questions and answers about steel hydraulic engineering and wear protection solutions.
Deloro is your one-stop supplier for the entire process: We not only supply the standard-compliant A65 rails, but also handle the high-quality Ultimet® coating using laser cladding and provide comprehensive project planning advice. With over 115 years of experience in wear protection and 100% vertical integration, you have only one contact person – from material selection to final inspection.
Deloro is your one-stop supplier for the entire process: We not only supply the standard-compliant A65 rails, but also handle the high-quality Ultimet® coating using laser cladding and provide comprehensive project planning advice. With over 115 years of experience in wear protection and 100% vertical integration, you have only one contact person – from material selection to final inspection.
Laser cladding is characterized by minimal heat input, allowing even long A65 rails to be coated with virtually no distortion. Dimensional accuracy is maintained, and you save yourself costly post-processing. Furthermore, the precise energy input enables accurate material deposition with consistently high coating quality across the entire length.
Ultimet® combines several critical properties in a single coating: high hardness combined with ductility, excellent abrasion and erosion resistance against sediments, outstanding corrosion protection in brackish and permanently damp environments, and high impact resistance against shock and alternating loads. You get all-around protection that solves multiple problems at once.
Yes, definitely. The controlled energy impact during laser cladding creates only a very small heat-affected zone. Even long A65 contactor rails can be coated without significant distortion – the geometric tolerances are maintained, and installation is straightforward.
Ultimet® can be applied completely crack-free, both in single layers for thin, precise coatings and in multiple layers for greater thicknesses. The low dilution preserves the chemical composition and thus the excellent mechanical properties throughout the entire layer thickness. Depending on the substrate material, little or no preheating is required.
Absolutely. Our A65 rails and Ultimet® coating meet the precise geometric dimensions, tolerances, and material requirements of the standard. We guarantee operational reliability, interchangeability, and fatigue strength under high mechanical and hydraulic stresses.
Laser cladding at Deloro is fully automated and reproducible. This guarantees consistently high process reliability and consistent quality – every rail leaves our factory with the same excellent properties. Fluctuations in coating quality are a thing of the past.
By combining abrasion, corrosion, and erosion protection, you significantly extend the service life of your A65 rails. This means fewer unplanned downtimes, reduced maintenance intervals, and considerably lower lifecycle costs. Investing in quality pays off many times over in the long run.
Absolutely. Longer lifespans mean less material consumption, fewer replacements, and less production effort for spare parts. This significantly reduces your resource consumption and carbon footprint and can support your ESG (Environmental, Social, Governance) requirements.
Absolutely. Extreme weather events, water level fluctuations, and increased mechanical stresses from flooding place new demands on hydraulic engineering infrastructure. Ultimet®-coated A65 rails are robust enough to withstand these harsher conditions and offer planning reliability for decades.
In principle, “yes.” The potential extends far beyond A65 rails. Our laser cladding technology and Ultimet® alloy are also suitable for weirs, turbine runners, lock gates, sealing surfaces, and many other wear- and corrosion-prone components in hydraulic steel structures. However, the technical feasibility of individual projects must be examined.
Contact Christian Grube directly:
Email: christian.grube@deloro.com
Phone: +49 261 80 88 920
Our team is available to answer all your technical and commercial questions.
Yes, from our location in Germany we serve customers throughout Europe and beyond. Please feel free to contact us with your international project requirements.
Harder. Stronger. More resistant. More sustainable. This has been our sole focus for over 115 years. At the core of every process. As one-stop supplier for engineering services, alloys, filler materials, ready-to-install components or complete welding systems.