Nickel alloys
When process temperatures exceed 800°C or conditions breach the limits of standard stainless steel, Nickel Alloy is the solution. We ensure that the material’s high-performance properties remain intact within the weld seam.
Alloy 200 / 201, Inconel 625 / 825
Typical applications for nickel alloys
Processes where the thermal resistance and chemical stability of nickel alloys are indispensable.
Strengths of nickel alloys
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Nickel alloys offer exceptional resistance to high temperatures, chemical stress, and mechanical loads. They perform in environments where standard steel would rapidly lose its properties.
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Nickel alloys are suitable for a wide range of applications: piping, heat exchangers, reactors, and equipment components. They deliver stable performance even under fluctuating process conditions.
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At PreOne, the welding and heat treatment of nickel alloys are performed according to certified procedures. This ensures joint strength, dimensional accuracy, and long-term operational reliability.
Nickel alloys vs. other materials
Nickel alloys vs. other materials
Nickel alloys vs. others
- Nickel alloys
- Titanium
- Tantalum
- Zirconium
- Hastelloy
- Duplex & SDX
- Stainless steels
- Aluminium
- Nickel alloys
- Titanium
- Tantalum
- Zirconium
- Hastelloy
- Duplex & SDX
- Stainless steels
- Aluminium
- Nickel alloys
- Titanium
- Tantalum
- Zirconium
- Hastelloy
- Duplex & SDX
- Stainless steels
- Aluminium
- Nickel alloys
- Titanium
- Tantalum
- Zirconium
- Hastelloy
- Duplex & SDX
- Stainless steels
- Aluminium
- Nickel alloys
- Titanium
- Tantalum
- Zirconium
- Hastelloy
- Duplex & SDX
- Stainless steels
- Aluminium
FAQ about nickel alloys
When are nickel alloys a better choice than stainless steel?
When conditions become too severe for standard stainless or acid-resistant steel. Nickel alloys are superior especially in chloride-rich environments (such as seawater), extreme temperatures, or applications with a high risk of stress corrosion cracking. It is an investment that pays for itself through the equipment’s multiplied service life.
Can nickel alloys be welded normally?
Not if you want a durable result. Nickel alloys are “sluggish” during welding, and the weld pool behaves differently than with steel. They are susceptible to hot cracking if heat input is too high, and require absolute cleanliness (all sulfur, lead, and grease must be removed). Our welders know the “nature” of nickel – we use controlled heat and the correct filler materials to ensure the corrosion resistance of the seam remains intact.
Which nickel alloy grades does PreOne use?
We work with all the most common industrial nickel alloys as needed. The most common are the Inconel series (such as 625) for high temperatures, Monel (400) for seawater and chemical applications, and pure nickel (Alloy 200/201). Thanks to our extensive supplier network, we can acquire even rarer alloys on a fast schedule.
Durability begins with nickel
The material of choice when steel reaches its limit.
Nickel alloys are the material group relied upon when process temperatures and chemical conditions rise to a level that stainless steel can no longer master. Alloy 200/201, along with Inconel 625 and 825, offer exceptional heat and corrosion resistance — these alloys maintain their strength, dimensional accuracy, and stability even in highly reactive environments.
Fabricating nickel alloys demands precise thermal control, the correct filler materials, and methods designed to prevent embrittlement and preserve the metal’s balanced structure. At PreOne, this process is fully controlled: welds are shielded in an inert environment, heat input is strictly managed, and every joint is documented before approval.
We utilize nickel alloys in facilities where reliability must not depend on environmental challenges — in seawater handling, high-temperature processors, desalination plants, pressure parts, and critical components in the energy sector. When requirements grow and the operating environment gets tougher, nickel alloys are the materials you can rely on.
Nickel alloys are not a backup option — they are the solution for processes that demand more from their metal than others.
