Aerospace ASME SB424 550MPa UNS N06625 Incoloy 625 Plate

Chemical Composition, %

In what applications is Inconel 625 used?

· Aircraft ducting systems

· Aerospace

· Jet engine exhaust systems

· Engine thrust-reverser systems

· Specialized seawater equipment

· Chemical process equipment

Fabrication with Inconel 625

Alloy 625 has excellent forming and welding characteristics. It may be forged or hot worked providing temperature is maintained in the range of about 1800-2150° F. Ideally, to control grain size, finish hot working operations should be performed at the lower end of the temperature range. Because of its good ductility, alloy 625 is also readily formed by cold working. However, the alloy does work-harden rapidly so intermediate annealing treatments may be needed for complex component forming operations. In order to restore the best balance of properties, all hot or cold worked parts should be annealed and rapidly cooled. This nickel alloy can be welded by both manual and automatic welding methods, including gas tungsten arc, gas metal arc, electron beam and resistance welding. It exhibits good restraint welding characteristics.

ASTM Specifications

Mechanical Properties

Representative Tensile Properties, bar, 1800° F anneal