Overview
A nickel based high temperature corrosion resistant specialty alloy that resists fuel ash corrosion, specifically sulfur and vanadium attack. Service limit 950 degrees Celsius (1740 degrees Fahrenheit).
Typical Uses
Petrochemical furnaces.
MetalTek Grade
MTEK 50-50Nb
Similar Specifications
Cast UNS: R20501
Wrought Grade: IN 657 (Cast)
Cast Grade: 50Cr-50Ni-Cb
Cast ASTM: A560
Typical Chemical Composition (% by wt.)
Aluminum: n/a
Carbon: 0.1
Chromium: 47-52
Manganese: 0.3
Iron: n/a
Copper: n/a
Nickel: BAL
Lead: n/a
Tin: n/a
Silicon: 0.5
Zinc: n/a
Other: Nb 1.4-1.7
Minimum Mechanical Properties
Heat Treatment: Not Heat Treated