Overview
This alloy is very sensitive to composition balance, containing enough chromium for scaling resistance at high temperatures. Service Limit 980 degrees Celsius (1800 degrees Fahrenheit).
Typical Uses
Convection furnace components, grate bars, rabble arms, radiant tubes, refractory support hardware.
MetalTek Grade
MTEK 25-12 TYPE I
Similar Specifications
Cast UNS: J93303
Cast Grade: HH TYPE I
Cast ASTM: A447
Typical Chemical Composition (% by wt.)
Aluminum: n/a
Carbon: 0.20-0.45
Chromium: 23-28
Manganese: 2.5
Iron: n/a
Copper: n/a
Nickel: 10.0-14.0
Lead: n/a
Tin: n/a
Silicon: 1.75
Zinc: n/a
Other: N 0.20 MAX
Minimum Mechanical Properties
Heat Treatment: Not Heat Treated