Nickel Alloy

Your Professional Nickel Alloy Supplier

Galore Metal Technology is a world-class leading supplier and manufacturer of high-quality titanium products with a history of 10 years. We maintain a complete inventory and production capacity of titanium rolling mill products that comply with ASTM/ASME/DIN/JIS and other standards, including plates/plates, tubes/tubes, fittings, rods/rods, wires, fasteners and forged parts, titanium containers , Heat exchanger equipment, etc. It also specializes in the machining and export of non-ferrous metals, such as zirconium, tantalum, niobium, nickel alloys, etc.

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Incoloy Alloy 925

Inconel 925 is an Inconel alloy. It has the excellent strength and corrosion resistance of Inconel

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Nickel Alloys

Nickel and nickel alloys are non-ferrous metals with high strength and toughness, excellent corrosion resistance, and superior elevated temperature properties. Products differ in terms of composition, grade, shape, dimensions, and features. Commercially pure, unalloyed, or very low alloy nickel does not contain or contains only very small amounts of alloying elements. By contrast, nickel alloys contain significant amounts of added elements or constituents. Clad or bimetal stock consists of two different alloys that are bonded integrally together. Metal matrix composites have a composite or reinforced metal or alloy matrix filled with a second component, which may be in particulate, chopped fiber, continuous filament, or fabric form. Other unlisted, specialty or proprietary nickel and nickel alloys are also available. These materials are often based on a unique alloy system, use a novel processing technology, or have properties tailored for specific applications.

Properties of Nickel Alloys

Nickel alloys like nickel titanium alloy possess a diverse range of remarkable properties that make them highly valuable in various industrial applications. Here’s an in-depth look at these properties.

Corrosion Resistance: Nickel alloys are highly resistant to both corrosion and oxidation. This makes them very suitable for use in tough conditions, where other materials might break down. Because of this, they are often used in harsh environments.

High Strength: Nickel alloys are also very strong. They can show very high levels of mechanical strength, which means they can hold up well under pressure. This makes them especially useful in situations where there are high temperatures, and you need both strength and toughness in the material.

Heat Resistance: Nickel alloys are known for their excellent heat resistance. They can handle very high temperatures, sometimes as much as 980°C without losing their strength. For example, nickel alloy 718 is an alloy that can perform very well at high temperatures.

Ductility: Nickel alloys are also very ductile. This means they can bend or stretch without breaking. Their ability to absorb impact without cracking makes them very resilient materials for many different uses.

Magnetic Properties: Nickel alloys that have a lot of nickel in them show excellent soft magnetic properties. They are very sensitive to magnetization, meaning they can be magnetized and demagnetized easily. They also have a low coercivity, which means they resist becoming demagnetized when exposed to opposing magnetic fields.

Thermal Conductivity: Nickel alloys generally do not conduct heat very well. However, in situations where you want to limit the spread of heat, this low thermal conductivity can be a good thing. When higher thermal conductivity is needed, nickel-copper alloys are often used.

Electrical Conductivity: Nickel alloys do not conduct electricity as well as pure copper or silver. However, nickel copper alloys and nickel silver alloys are good options when you need better electrical conductivity along with corrosion resistance.

Weldability: Nickel alloys can be welded using different methods like MIG (metal inert gas) or TIG (tungsten inert gas) welding. You can also use MMA (manual metal arc) welding. Welding nickel alloys can be tricky because of problems like cracking and porosity during the welding process.

Low Thermal Expansion Coefficient: Nickel alloys usually have a low coefficient of thermal expansion. This means they do not expand or contract much when the temperature changes. This feature makes them a good choice for situations where it’s important to maintain the exact size or shape of the material even when temperatures vary.

Types of Nickel Alloys

There are several types of nickel alloys available today. Here’s a list of some of the most common:

Nickel Alloy Type	Composition	Characteristics	Common subtypes
Nickel-Chromium	Chromium, molybdenum, iron	Oxidation resistance, high mechanical strength, excellent in high-temperature environments, can be hard to cold form due to its quick work-hardening	Inconel, 625, 718, and 600
Nickel-Copper	Copper (55–91.5%), iron, tin, manganese	Saltwater corrosion and fouling resistance, high strength, performs well in low-temperature environments (its ductility won’t reduce and its strength and hardness can increase), can work harden during cold forming	Monel 400, R-405, and K-500
Nickel-Molybdenum	Either chromium or molybdenum	Great thermal stability, corrosion- and oxidation-resistance at high temperatures	Hastelloy, C-22, and C-276
Nickel-Iron	Iron, nickel (up to 50%), cobalt, small amounts of silicon	High ductility, low thermal expansion, corrosion resistance, soft magnetic properties	Invar
Nickel-Chromium	High nickel content of around 70%	Maintain strength in high temperatures, very good corrosion and oxidation resistance, as well as high electrical resistivity, high melting point of over 1300°C	Nichrome
Nickel-Titanium	Nickel, titanium	Great corrosion resistance and mechanical strength. This is a shape memory alloy (SMA) that can be formed into a shape above a certain high temperature (the transition temperature). When it cools, the part can be deformed to a certain extent, but when heated back up to the transition temperature, it will resume its original shape. The transition temperature can be adjusted by changing the alloy’s composition	Nitinol

Table 1. Compositions of some common nickel alloys.
UNS No	Al	Cr	Co	Fe	Mo	Ni	Nb+Ta	Ti	W
N10276		15.5		5.5	16	57			3.8
N06600		15.5		8		76
N06625		21.5			9	61	3.6
N08800		21		46		32.5
N07718	0.5	19		18.5	3	52.5	5.1
N07090	1.5	19.5	16.5			60		2.5

Table 2. Typical properties of some common nickel alloys.
UNS No	Condition	UTS (MPa)	0.2 Proof Stress (MPa)	Elong. On 5cm (%)	Hardness (HB)	1000hr Ruptire Str. 750°C (MPa)
N10276	Annealed	790	415	50	184	N/a
N06600	Annealed	550-690	210-430	55-35	120-170	38
N06625	Annealed	930	520	45	180	160
N08800	Annealed	520-690	210-410	60-30	120-184	70 (700°C)
N07718	Age Hardened	1350	1180	17	382	170

Each is available in a variety of thicknesses and dimensions shown below:

THICKNESS	MAXIMUM WIDTH
0.025″- 0.0004″ (0.635 – 0.01mm)	17.5” (444.5mm) as rolled edge 17.0” (431.8mm) with a slit edge
0.00039″ – 0.0001″ (0.0099 – 0.0025mm)	4.25” (107.95mm) as rolled edge 4.0” (101.6mm) with a slit edge

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FAQ

Q: Is nickel alloy good?

A: High-temperature stability: Compared with steel materials, nickel-based alloys have better high-temperature stability, can work stably for a long time in high-temperature oxidizing environments, and are not prone to deformation and cracks.

Q: Is nickel alloy stronger than stainless steel?

A: First, we tend to compare austenitic stainless steels with general nickel alloys. Because their structure is very similar. Of the two materials, nickel alloys can be strengthened by adding more solid solution elements. Therefore its strength tends to be higher than that of austenitic stainless steel.

Q: Does nickel alloy tarnish?

A: Yes, nickel silver can tarnish over time, but not as easily as pure silver.

Q: Does nickel alloy rust?

A: These are characterised by their high resistance to corrosion at both normal and high temperatures (resistance to scaling), good high-temperature strength and high electrical resistance.

Q: How durable is nickel alloy?

A: Nickel has strong corrosion resistance and its magnetic qualities are integral to the functioning of numerous electronic devices and equipment. Its corrosion resistance ensures longevity in corrosive environments like chemical processing and marine settings.

Q: Is nickel better than aluminum?

A: First and foremost, aluminum is a much softer alloy than nickel. That means that nickel is going to provide better durability. But to that end, aluminum's soft qualities allow it to be formed easier than nickel alloy.

Q: Does nickel rust in salt water?

A: Nickel alloys, such as Inconel, are well-known for their superior corrosion resistance when exposed to seawater and other harsh environments. The high chromium content in these alloys allows them to form a protective oxide layer on their surface, preventing rust.

Q: Does nickel alloy corrode?

A: Nickel and nickel alloys are the metals which have shown, when in certain caustic solutions, the highest levels of corrosion-resistance. In very general terms, the higher the nickel content in an alloy, the lower the resultant corrosion rate has been.

We're well-known as one of the leading nickel alloy manufacturers and suppliers in China. Be free to wholesale high quality nickel alloy in stock here and get free sample from our factory. Good service and competitive price are available.

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