What is Stellite?

Stellite is primarily made of cobalt, chromium, and other elements such as tungsten or molybdenum. The cobalt base gives it resistance to wear and corrosion, while the chromium content provides protection against oxidation at high temperatures. Stellite is non-magnetic and retains its hardness and resistance even at elevated temperatures, making it highly valued in industries where components are exposed to related conditions.

Stellite: Key Benefits & Disadvantages

Benefits:

High temperature resistance: Stellite maintains its mechanical properties and hardness even at high temperatures, making it suitable for thermal applications.
Corrosion resistance: Its chemical composition provides above average protection in corrosive environments, especially in the presence of seawater or chemicals.
Wear resistance: Stellite is known for its hardness and wear resistance making it suitable for applications with abrasion or wear. However, field testing shows that the wear resistance of Stellite is not higher than that of Inconel 625.

Disadvantages:

Machining difficulty: Its hardness, while beneficial in performance, makes Stellite difficult to machine and shape.
Ductility: its limited ductility makes it prone to cracking or fracturing under high impact or dynamic loading conditions
High cost: Stellite is significant more expensive compared to other materials like stainless steel or Inconel due to its complex manufacturing process and high market prices of its main element cobalt.

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Specification

Value

Corrosion

A high score on the PREN (Pitting Resistance Equivalent Number) indicates a high corrosion resistance

Wear

A low score on the ASTM G65 test indicates a high wear resistance

94mm³

Ductility

High

Impact resistance

+++

Price index

The price index indicates the relative price where the price of Sinex has been set at 100%. Actual prices are dependent on a variety of factors such as: product dimensions, tolerances, layer thickness, etc.

150

Stellite vs Inconel

Both Stellite and Inconel are used in high-temperature, corrosive environments, but they serve different purposes. Stellite is primarily valued for its hardness, especially at high temperatures. Inconel, on the other hand, has higher ductility and is more cost-effective while offering the same wear resistance, making it the preferred choice in markets such as offshore, dredging and high-pressure systems. Its combination of higher ductility, enhanced corrosion protection, and lower cost contributes to its frequent use in cylinder rods and high-pressure components, where flexibility and resilience under dynamic loads are essential.

What is Stellite used for?

Stellite is used in a variety of industries where extreme durability is required:

Chemical Processing: Applied to equipment exposed to aggressive chemicals and severe mechanical stress.
Oil and Gas: Suitable for valves, pumps, and bearings in abrasive and corrosive environments.
Aerospace: Used in turbine blades and engine components due to its ability to withstand high temperatures and wear.

Markets & Applications

Offshore & Maritime

Laser cladding solutions For offshore and maritime applications, Topclad offers laser cladding solutions that provide superior corrosion resistance and wear protection. Quarite NR+ is particularly effective for applications such as rods for wireline tensioners, where the enhanced durability of the layer prevents corrosion even after years of operation in challenging environments. After many years of continuous operation, our solutions have shown zero corrosion and minimal wear. In addition, the Tardisphere layer is highly effective for protecting propeller shafts and other components frequently exposed to abrasive materials, offering excellent resistance to wear and impact. Topclad’s ability to apply protective layers where they are most needed such as the ends of hydraulic rods, ensures superior long-term protection. Our Tardisphere layers for ship propellor shafts are certified by Bureau Veritas, ensuring that they meet the highest standards of quality, particularly for critical offshore components. Related markets: dredging and bridges & water locks In addition to the offshore industry, Topclad offers specialized laser cladding solutions for the Dredging and Bridges & Water Locks markets. Both sectors face similar challenges in terms of corrosion, wear, and the need for durable, long-lasting solutions. To learn more about how we support these industries, visit our pages on dredging and bridges & water locks.

Steel industry

Laser cladding solutions Topclad’s laser cladding is the perfect solution for the steel industry, offering unparalleled protection for high-temperature and high-wear environments. Both our Tardisphere layer as well as our Quarite XT layer provide excellent durability in these environments, facing corrosion, wear and thermal shocks. Our Tardisphere layer excels even more in supreme wear resistance. These solutions are ideal for components like rollers and mandrels, and other equipment that face constant mechanical stress. By choosing Topclad, steel manufacturers can reduce maintenance needs, extend equipment lifespans, and improve operational efficiency. Related industries facing similar challenges Industries such as mining, dredging, and oil and gas face similar challenges to the steel industry, with high mechanical loads, abrasive materials, and corrosive environments. Topclad’s laser cladding solutions have been proven to protect equipment in these industries as well, offering the same level of durability and reliability. Looking to maximize the durability of your steel equipment? Reach out to Topclad today and discover how our laser cladding can minimize maintenance and keep your operations running smoothly. Contact us for more information.

Machine Parts

Repair worn out machine parts in Lelystad, the Netherlands For reliable machine part repairs, Topclad is the trusted partner across industries. With over 14 years of experience, we are equipped to restore everything from standard-sized parts to oversized components. Our laser cladding technology ensures that even the most severely worn parts are rejuvenated with precision, bringing them back to optimal functionality. At Topclad, we not only restore worn parts but also enhance them to perform better than before. Our expert team ensures that all repairs are completed with attention to detail, using advanced materials to withstand the harshest conditions. This enables businesses to reduce downtime, save on operational costs, and achieve greater equipment reliability.

Hydraulic Cylinder Rods

Traditional coatings like nickel-chrome plating not only present sub-corrosion risks but are also brittle, leading to cracking and peeling under bending, vibrations, or impact. In contrast, laser cladding provides high ductility, enabling flexibility without cracking, even under mechanical stress. This makes laser cladding especially suited for longer cylinder rods, where bending is more prevalent. Moreover, our repair solutions can restore damaged rods with thicker layers of multiple millimeters, without compromising on flexibility or resistance to impact—issues that commonly affect traditional coatings. Depending on the application and operating conditions, we offer a range of solutions from the Quarite- and Tardisphere-series, designed for maximum protection against wear, corrosion, and impact. We recommend selecting the appropriate layer based on the specific demands of your environment. For instance, Quarite NR+ provides outstanding protection in environments with high corrosion risks, while Tardisphere offers high strong corrosion resistance as well, with the added benefit of superior abrasion resistance and impact protection, making it ideal for environments with abrasive materials. Learn more about the Quarite-series here. Make your machines more reliable with laser cladding Laser cladding provides significant improvements to the durability and performance of hydraulic cylinders. Whether it’s the repair of damaged rods or the application of new cladding layers, Topclad ensures your machinery runs more efficiently with less downtime and longer lifespans. Ready to strengthen your equipment? Request a quote today and let Topclad help you enhance the reliability and longevity of your machines.

Rollers & Drums

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We are Topclad

Topclad is Europe’s leading manufacturer of innovative laser clad layers, based in Lelystad, the Netherlands. We specialize in developing and applying laser clad layers for the most demanding industries, including oil & gas, offshore, dredging, mining, bridges & water locks, steel manufacturing, and food processing.

Our mission is to provide components with superior protection against wear, corrosion, and impact, resulting in significantly improved reliability and uptime of capital-intensive equipment. With over 14 years of experience and a steadfast commitment to quality, we deliver solutions that enhance the performance and longevity of your critical machinery.

Axel Jansen

Director & Owner Topclad

Why Topclad?

Over 14 years laser cladding experience with over 10.000 cladded components
More than 10 in-house developed laser clad layers
Commitment to quality
Expertise in comprehensive repairs
24.000 mm clad length capacity and 2.200 clad diameter capacity
Chromium-6-free solutions

Monday - Friday	7:30 – 16:00
Saturday - Sunday	Closed

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Stellite