NICKEL ALLOYS

Nickel alloys are defined by their high level of nickel (Ni) of greater than 45%. They are used in high temperature (>1600° F) and high-corrosion environments.  Nickel alloys offer rupture resistance and are resistant to aqueous corrosion. Nickel alloys are a highly desirable material, but extremely expensive so are selectively used for only the most challenging applications.

 

 

ACCURATE IDENTIFICATION OF NICKEL ALLOYS USING HANDHELD LIBS

The handheld Rigaku KT-100S analyzer is built for purpose to be used in the harshest environments.

Nickel Alloy Stock

 

QUICK GUIDE TO NICKEL ALLOYS

Ni-Fe

Characteristics: low thermal expansion

Use: glass to metal steels

Chemistry: Ni= 35-55%, Fe=45-65%

Examples: Invar-36

 

Ni-Cu (Monels)

Characteristics: highly corrosive environments

Use: marine engineering, hydrocarbon, valves, pumps, shafts, fittings, fasteners, and heat exchanger

Chemistry: Ni=50-70%, remaining Cu, small amounts of Al, Si, Mn, Fe

Examples: Alloy (Monel) 400

 

Ni-Cr-Mo (Hastelloys)

Characteristics: severely corrosive environments

Use: petrochemical

Chemistry: Ni=50-60%, Cr=15-20%, Mo=15-20%

Examples: C-276

 

Ni-Cr (Nimonics)

Characteristics: high strength and temp resistance

Use: gas turbines, nuclear power, chem and petrochem plants

Chemistry: Ni=70-80%, Cr=18-20%

Examples: Nimonic 80, 90

 

Ni-Cr-Fe

Characteristics: high strength and temp resistance

Use: gas turbines, nuclear power, chem and petrochem plants

Chemistry: Ni=50-75%, Cr=5-25%, Fe=8-20% Al, Si, Ti, Mo, Nb and W added

Examples: Alloy 600, 601, 718, X

 

Ni-Co (Superalloys)

Characteristics: high temp, high strength, high, oxidation

Use: gas turbines, aerospace components

Chemistry: Ni=50-70%, Cr=5-25%, Co=0-20%, Al=0-6%, Ti=0-6%, Ta=0-12%, Re=0-6%

Examples: Rene 77

 

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KT-100S HANDHELD METAL LIBS ANALYZER

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