Ni Hard Cast Iron Applications

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Ni-Hard 1 is an abrasion resistant material used in applications where impact is also a concern as the wear mechanism. NiHard cast components can extend the life of parts and products providing longer use when compared with other cast iron techniques.

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Ni-Hard is an extremely wear resistant material cast in forms and shapes which.

Ni hard cast iron applications. In addition to offering high abrasion resistance Ni-Hard 4 is also more resistant to shock loads. These white cast irons are being produced for over 50 years and are the oldest group of high alloy white cast iron of industrial importance. Ni Hard types 1 and 2 have proved an economic replacement for white cast iron under most conditions of wear-resisting service and for carbon and 12 manganese steels for wear resistance under conditions of moderate impact.

Ni-Hard 1 should also be considered if there are low or medium dynamic stresses. Overview Dura-Bar Ni-Resist iron is commonly specified for use in corrosive atmospheres and will exhibit corrosion resistant properties somewhere between cast iron and austenitic stainless steel. Ni-Hard 4 is a Nickel-Chromium white cast iron which provides consistent wear life in a variety of applications including slurry pumps mill liners pipe fittings wear backs log teeth pulverizer parts and other wear resistant castings.

Ni-Hard is a white cast iron alloyed with nickel and chromium suitable for low impact sliding abrasion applications both wet and dry. The matrix is austenite with alloy carbide and contains Type VII graphite Type A flakes size 4-6 as defined in ASTM A247. Ni-Hard is a white cast iron alloyed with nickel and chromium suitable for low impact sliding abrasion for both wet and dry applications.

As time passes the. The presence of chrome and nickel makes Ni-Hard 4 more resistant to corrosion than cast iron. Recommends NiHard castings for wear resistance applications.

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NiHard Ni-Hard is a white cast iron alloyed with nickel and chromium suitable for low impact sliding abrasion for both wet and dry applications. Although Ni-hard cast iron and high-chromium cast iron appeared almost at the same time HCCI was well developed in the 1960s and 1970s. Increased wear and impact resistance are possible with Ni Hard 4.

Properties and Applications of Ni-Resist and Ductile Ni-Resist Alloys General Characteristics of the Ni-Resist Austenitic Cast Iron Alloys There are two families of Ni-Resist austenitic cast irons. These are the standard or flake graphite alloys and the ductile or spheroidal graphite alloys. Ni-Hard is an extremely wear resistant material and in cast form is ideal for use with abrasive products giving a much more extended life when compared with cast iron or mild steel when incorporated in pneumatic conveying systems.

Its well proven low-cost characteristics have seen it used in the mining power cement ceramic paint dredging coal-coke steel and foundry industries. Ni-Hard is an extremely wear resistant material cast in forms and shapes which are ideal for use in abrasive and wear environments and applications. Ni-Hard IV has high hardness but the microstructure has discontinuous eutectic carbide distribution of M7C3 chromium carbides which also have appreciable resistance to fracture by impact due to discontinuity.

With the addition of alloying elements usually chrome nickel or copper the hardness can be increased to over 700 Brinell. Ni-Hard is used in power generation brick asphalt cement concrete rock sand and gravel industries. NiHard castings also written as Ni-Hard castings are extremely wear resistant castings ideal for abrasive resistant products and components.

Typical castings are mill or mixer liners mixer tips and slurry pumps. Ni-Hard Ni-Hard is a white cast iron alloyed with nickel and chromium suitable for low impact sliding abrasion for both wet and dry applications. Wear Resistant Ni Hard Cast Iron Castings Cast iron in grades normally used for items such as bearing housings gearboxes or machine beds has a hardness of about 150 to 200 Brinell.

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The nickel-chromium white cast irons are also usually classified as Ni-Hard types 1 to 4. Experimental method The Ni-hard cast irons and high-chromium cast irons HCCIs are among the most effective materials for applications requiring a high degree of strength hard- ness and wear resistance 1-4. Ni Cr white cast irons are also known as Ni hard irons.

The as-cast hardness is typically 500 BHN depending on the section thickness of the casting. This makes Ni-Hard 4 ideal for applications in dredge pumps where stones and other hard solid objects can be sucked into the pump. Abrasion-resistant white iron is used to produce a variety of machine parts such as slurry pump housings.

Ni-Hard is a white cast iron alloyed with nickel and chromium suitable for low impact sliding abrasion for both wet and dry applications. NiHard is an extremely wear resistant material cast in forms and shapes which are ideal for use in abrasive and wear environments and applications. Nickel content increases with section size or cooling time of the casting to inhibit pearlitic transformation.

Ni-hard III is designed for chill-casting of grinding balls and slugs. Ni-Hard Iron is specifically used for mixer paddles augers and dies liner plates for ball mills coal chutes and wire guides for drawing wires. Material Data and Applications For over half a century Ni-Hard has been the number one choice for industrial processes demanding extreme abrasion resistance.

Ni-Hard is an extremely wear resistant material cast in forms and shapes which are ideal for use in abrasive and wear environments and applications.

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