High Nickel Alloy (marketing department of Shanghai HY Industry Co., Ltd)

High-nickel alloy is non-ferrous alloys composed of nickel as the matrix and other elements added.
The high temperature corrosion resistance of nickel alloys is very important in industry. For example, they have very good oxidation resistance, which is superior to iron- and cobalt-based alloys. High temperature corrosion forms include oxidation, carbonization, metal dusting, sulfidation, nitridation, halogen corrosion and molten salt corrosion.

1. Nickel-based superalloy. The main alloying elements are chromium, tungsten, molybdenum, cobalt, aluminum, titanium, boron, zirconium, etc. Among them, chromium plays the role of anti-oxidation and anti-corrosion, and other elements play a strengthening role. It has high strength, oxidation resistance, and gas corrosion resistance at high temperatures of 650 to 1000 °C. It is used in the manufacture of high-temperature parts for aero-engine blades and rocket engines, nuclear reactors, and energy conversion equipment.

2. Nickel-based corrosion-resistant alloy. The main alloying elements are copper, chromium and molybdenum. It has good comprehensive properties and is resistant to various acid corrosion and stress corrosion. The earliest application was nickel-copper alloy, also known as Monel alloy; in addition, nickel-chromium alloy, nickel-molybdenum alloy, nickel-chromium-molybdenum alloy, etc. For the manufacture of various corrosion-resistant parts.

3. Nickel-based wear-resistant alloy. The main alloying elements are chromium, molybdenum, and tungsten, with small amounts of niobium, tantalum and indium. In addition to its wear resistance, it has good oxidation resistance, corrosion resistance and welding performance. It can be used to manufacture wear-resistant parts, and can also be used as a cladding material to coat the surface of other base materials through surfacing and spraying processes.

4.  Nickel-based precision alloys. Including nickel-based soft magnetic alloys, nickel-based precision resistance alloys and nickel-based electrothermal alloys.

   The most commonly used soft magnetic alloys are permalloys containing about 80% nickel, which have high maximum and initial permeability and low coercivity, and are important core materials in the electronics industry.The main alloying elements of nickel-based precision resistance alloys are chromium, aluminum, and copper. This alloy has high resistivity, low temperature coefficient of resistivity and good corrosion resistance, and is used to make resistors.

   Nickel-based electrothermal alloy is a nickel alloy containing 20% chromium, which has good anti-oxidation and anti-corrosion properties, and can be used for a long time at a temperature of 1000-1100 °C.

5. Nickel-based shape memory alloy. Nickel alloy with 50(at)% titanium. The recovery temperature is 70°C, and the shape memory effect is good. A small change in the nickel-titanium composition ratio can change the recovery temperature within the range of 30 to 100 °C. It is mostly used in the manufacture of self-expanding structural parts used in spacecraft, self-energizing fasteners used in the aerospace industry, and artificial heart motors used in biomedicine.

Application areas:

1. Heat treatment industry. Such as furnace rolls, bell furnaces and annealing furnaces.

2. Calciner. For example, it is used to calcine to produce high-performance corundum, to calcine chromite to produce ferrochromium alloys, and to recover nickel used as a catalyst in petrochemicals.

3. Chemical and petrochemicals, which are used to prepare new steam cracking crude gasoline furnaces to produce hydrogen, etc.

4. automation device. Such as catalytic support system, spark plugs.

5. Cleaning equipment for the nuclear industry, such as nuclear waste removal.

6.  iron industry. Such as direct reduction of iron ore process to produce sponge titanium.

7. Application in the automotive industry:

•  Valve seals. It has excellent properties of oxidation resistance, high temperature resistance and vulcanization resistance.

• Spraying material.

Shanghai HY Industry Co., Ltd is qualified super Stainless steel supplier.We have more than 20 years experience in kind of  superalloy，Cobalt alloy，Titanium alloy.