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Inconel™ 625 Material Property Data Sheet

Do you need custom fasteners created with Inconel™ 625? Since our inception, Vegas Fastener Manufacturing has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.

Below are the technical specifications of the Inconel™ 625 Bar Stock we have available to meet your needs.


Special Metals INCONEL® Alloy 625

Subcategory: Metal; Nickel Base; Superalloy

Key Words: ASME SB-443, SB-444, SB-446, SB-564, Boiler Code Sections I, III, VIII, IX; AFNOR NC 22 D Nb; VdTUV 499, AMS 5581, AMS 5599, AMS 5666, AMS 5837; DIN 17744, 17750-17752, 17754; Werkstoff Nr. 2.4856; NACE MR-01-75, UNS N06625; BS 3072, 3074, 3076 (NA21); ASTM B443, ASTM B444, ASTM B446, ASTM B564, ASTM B704, ASTM B705, ASTM B751

   Wt. %
Component   Wt. %
AlMax 0.4 
CMax 0.1 
CoMax 1 
Cr20 - 23 
FeMax 5 
Component   Wt. %
MnMax 0.5 
Mo8 - 10 
Nb3.15 - 4.15 
NiMin 58 
PMax 0.015 
SMax 0.015 
SiMax 0.5 
TiMax 0.4 

Material Notes:
Niobium content above includes tantalum. A nickel-chromium-molybdenum alloy with an addition of niobium that acts with the molybdenum to stiffen the alloy's matrix and thereby provide high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Used in chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors. Standard product forms are round, flats, forging stock, extruded section, pipe, tube, plate, sheet, strip, and wire.

Data provided by the manufacturer, Special Metals.

MicroGroup's inventory of small diameter 304 and 316 and other stainless steel, nickel based alloys, and titanium alloys exceeds 5 million feet. Redraw of material to specific sizes and shapes, as well as secondary operations to convert tubing into components and assemblies. Visit http://www.microgroup.com or Phone 1-800-ALL-TUBE (1-800 255-8823) or 1-508-533-4925.

Physical PropertiesMetricEnglishComments
Density8.44 g/cc0.305 lb/inł 

Mechanical Properties
Tensile Strength, Ultimate880 MPa128000 psi Annealed. Value at room temperature. Value at 650°C is 760 MPa.
Tensile Strength, Yield460 MPa66700 psi Annealed. Value at room temperature; 0.2% offset. Value at 650°C is 290 MPa.
Elongation at Break50 %50 % Annealed. Value at room temperature. Value at 650°C is 55%.

Electrical Properties
Electrical Resistivity0.000129 ohm-cm0.000129 ohm-cm 
Magnetic Permeability1.00061.0006 at 200 oersted (15.9 kA/m)
Curie TemperatureMax -196 °CMax -321 °F 

Thermal Properties
CTE, linear 20°C12.8 µm/m-°C7.11 µin/in-°F 20-100°C
Heat Capacity0.41 J/g-°C0.098 BTU/lb-°F 
Thermal Conductivity9.8 W/m-K68 BTU-in/hr-ft˛-°F 
Melting Point1290 - 1350 °C2350 - 2460 °F 
Solidus1290 °C2350 °F 
Liquidus1350 °C2460 °F 


 This information is provided by MatWeb.com, The Online Materials Database and is reprinted with their permission.

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