Inconel 625 is a non-magnetic , corrosion and oxidation resistant, nickel-chromium alloy. Its outstanding strength and toughness in the temperature range from cryogenic to 1093 Centigrade degree are derived primarily from the solid solution effects of the refractory metals Columbium and molybdenum in a nickel-chromium matrix. The alloy has excellent fatigue strength and stress corrosion cracking to chloride ions.
Chemistry composition
Nickel............................... 58.00 min
Chromium......................... 20.0-23.0
Iron................................ ..5 min
Molybdenum................... . 8.0-10.0
Columbium + Tantalum...... 3.15-4.15
Manganese...................... 0.50 max
Carbon.......................... .. 0.10 max
Silicon............................. 0.50 max
Phosphorus...................... 0.015 max
Sulfur............................... 0.015 max
Aluminum......................... 0.40 max
Titanium........................... 0.40 max
Cobalt...............................1.00 max
Physical Properties
Density: 0.305 lbs/in³, 8.44 g/cm³
Mean Coefficient of Thermal Expansion: in/in/ degree F (m/m/ degreeC)
68- 400 degree F (20- 204 degree C): 7.3 x 10-6 (13.1)
68- 600 degree F (20- 315 degree C): 7.5 x 10-6 (13.5)
68- 800 degree F (20- 427 degree C): 7.7 x 10-6 (13.9)
Strip size
Thickness 0.05-4mm
Width 10mm-900mm
Surface bright
Forms
Coil – Strip, Foil, Ribbon
Mechanical Properties at Room Temperature
Annealed Typical
Ultimate Tensile Strength: 120 KSI min (827 MPa min)
Yield Strength: (0.2% offset) 60 KSI min (414 MPa min)
Elongation: 30% min ( gauges > 0.040inched
Tempered:
Inconel 625 can be cold rolled to various tempers. Contact Ulbrich Technical Service for additional information
Applications
Aircraft ducting systems
Jet engine exhaust systems
Engine thrust-reverser systems
Bellows and expansion joints
Turbine shroud rings
Flare stacks
Seawater components
Chemical process equipment handling mixed acids both oxidizing and reducing.