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Rulon Bearings

Special Metals INCOLOY® Alloy 945X Nickel-Iron-Chromium Alloy, Pump Shaft Grade, Cold Worked and Aged Rod (UNS N09945)
Categories: Metal; Nonferrous Metal; Nickel Alloy
Material Notes: INCOLOY® alloy 945X® (UNS N09945) is an age hardenable nickel-iron-chromium alloy with additions of molybdenum, copper, niobium, titanium, and aluminum. The alloy chemical composition is designed to provide a combination of high strength and excellent corrosion resistance. The nickel content is sufficient to provide protection against chloride-ion stress corrosion cracking. The nickel plus the molybdenum and copper give outstanding general corrosion resistance to reducing chemicals. The molybdenum aids resistance to pitting and crevice corrosion. The alloy’s high chromium content provides resistance to oxidizing environments. The niobium, titanium and aluminum are added to provide high volume fraction of sub-micron size uniformly distributed Ni3(NbTiAl)-type gamma prime and Ni3(TiNbAl)-type gamma double prime precipitates. Their precipitates are responsible for high strength of the alloy by virtue of a dispersion strengthening mechanism. A special precipitation hardening (age hardening) heat treatment is developed to provide required strength.

Data provided by the manufacturer, Special Metals.
Key Words: NACE MR0175 / ISO 15156-3
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 8.27 g/cc0.299 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C  45
@Thickness 25.8 mm		45
@Thickness 1.02 in
 45.8
@Thickness 17.8 mm		45.8
@Thickness 0.701 in
 45.9
@Thickness 38.1 mm		45.9
@Thickness 1.50 in
Tensile Strength  1515 MPa
@Diameter 25.8 mm		219700 psi
@Diameter 1.02 in
 1587 MPa
@Diameter 38.1 mm		230200 psi
@Diameter 1.50 in
 1596 MPa
@Diameter 17.8 mm		231500 psi
@Diameter 0.701 in
Tensile Strength, Yield  952 MPa
@Temperature 204 °C		138000 psi
@Temperature 399 °F		geometry not reported
 952 MPa
@Temperature 232 °C		138000 psi
@Temperature 450 °F		geometry not reported
 1000 MPa
@Temperature 93.0 °C		145000 psi
@Temperature 199 °F		geometry not reported
 1000 MPa
@Temperature 149 °C		145000 psi
@Temperature 300 °F		geometry not reported
 1043 MPa
@Temperature 25.0 °C		151300 psi
@Temperature 77.0 °F		geometry not reported
 1457 MPa
@Thickness 25.8 mm		211300 psi
@Thickness 1.02 in
 1503 MPa
@Thickness 38.1 mm		218000 psi
@Thickness 1.50 in
 1527 MPa
@Thickness 17.8 mm		221500 psi
@Thickness 0.701 in
Elongation at Break  13.8 %
@Diameter 38.1 mm		13.8 %
@Diameter 1.50 in
 15.1 %
@Diameter 25.8 mm		15.1 %
@Diameter 1.02 in
 17.4 %
@Diameter 17.8 mm		17.4 %
@Diameter 0.701 in
Reduction of Area  32.8 %
@Diameter 38.1 mm		32.8 %
@Diameter 1.50 in
 39 %
@Diameter 17.8 mm		39 %
@Diameter 0.701 in
 40.3 %
@Diameter 25.8 mm		40.3 %
@Diameter 1.02 in
Modulus of Elasticity  161 GPa
@Temperature 760 °C		23400 ksi
@Temperature 1400 °F
 168 GPa
@Temperature 649 °C		24400 ksi
@Temperature 1200 °F
 175 GPa
@Temperature 538 °C		25400 ksi
@Temperature 1000 °F
 185 GPa
@Temperature 371 °C		26800 ksi
@Temperature 700 °F
 197 GPa
@Temperature 204 °C		28600 ksi
@Temperature 399 °F
 203 GPa
@Temperature 24.0 °C		29400 ksi
@Temperature 75.2 °F
Poissons Ratio  0.31
@Temperature 23.0 °C		0.31
@Temperature 73.4 °F		Alloy 945
 0.31
@Temperature 93.0 °C		0.31
@Temperature 199 °F		Alloy 945
 0.31
@Temperature 149 °C		0.31
@Temperature 300 °F		Alloy 945
 0.31
@Temperature 204 °C		0.31
@Temperature 399 °F		Alloy 945
 0.32
@Temperature 260 °C		0.32
@Temperature 500 °F		Alloy 945
 0.32
@Temperature 316 °C		0.32
@Temperature 601 °F		Alloy 945
 0.32
@Temperature 371 °C		0.32
@Temperature 700 °F		Alloy 945
 0.32
@Temperature 427 °C		0.32
@Temperature 801 °F		Alloy 945
 0.32
@Temperature 482 °C		0.32
@Temperature 900 °F		Alloy 945
 0.33
@Temperature 538 °C		0.33
@Temperature 1000 °F		Alloy 945
 0.33
@Temperature 593 °C		0.33
@Temperature 1100 °F		Alloy 945
 0.34
@Temperature 649 °C		0.34
@Temperature 1200 °F		Alloy 945
 0.34
@Temperature 704 °C		0.34
@Temperature 1300 °F		Alloy 945
Fracture Toughness  226 MPa-m½
@Temperature 232 °C		206 ksi-in½
@Temperature 450 °F		10 CPM; R = -1; geometry not reported
 236 MPa-m½
@Temperature 25.0 °C		215 ksi-in½
@Temperature 77.0 °F		10 CPM; R = -1; geometry not reported
 251 MPa-m½
@Temperature 204 °C		228 ksi-in½
@Temperature 399 °F		10 CPM; R = -1; geometry not reported
 255 MPa-m½
@Temperature 149 °C		232 ksi-in½
@Temperature 300 °F		10 CPM; R = -1; geometry not reported
 257 MPa-m½
@Temperature 93.0 °C		234 ksi-in½
@Temperature 199 °F		10 CPM; R = -1; geometry not reported
Shear Modulus  58.0 GPa
@Temperature 704 °C		8410 ksi
@Temperature 1300 °F		Alloy 945
 59.0 GPa
@Temperature 649 °C		8560 ksi
@Temperature 1200 °F		Alloy 945
 61.0 GPa
@Temperature 593 °C		8850 ksi
@Temperature 1100 °F		Alloy 945
 63.0 GPa
@Temperature 538 °C		9140 ksi
@Temperature 1000 °F		Alloy 945
 64.0 GPa
@Temperature 482 °C		9280 ksi
@Temperature 900 °F		Alloy 945
 65.0 GPa
@Temperature 427 °C		9430 ksi
@Temperature 801 °F		Alloy 945
 67.0 GPa
@Temperature 371 °C		9720 ksi
@Temperature 700 °F		Alloy 945
 68.0 GPa
@Temperature 316 °C		9860 ksi
@Temperature 601 °F		Alloy 945
 69.0 GPa
@Temperature 260 °C		10000 ksi
@Temperature 500 °F		Alloy 945
 70.0 GPa
@Temperature 149 °C		10200 ksi
@Temperature 300 °F		Alloy 945
 70.0 GPa
@Temperature 204 °C		10200 ksi
@Temperature 399 °F		Alloy 945
 74.0 GPa
@Temperature 23.0 °C		10700 ksi
@Temperature 73.4 °F		Alloy 945
 74.0 GPa
@Temperature 93.0 °C		10700 ksi
@Temperature 199 °F		Alloy 945
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.000113 ohm-cm0.000113 ohm-cm
Magnetic Permeability 1.0021.002200 Oe
 
Thermal PropertiesMetricEnglishComments
CTE, linear  13.43 µm/m-°C
@Temperature 25.0 - 93.0 °C		7.461 µin/in-°F
@Temperature 77.0 - 199 °F
 13.84 µm/m-°C
@Temperature 25.0 - 204 °C		7.689 µin/in-°F
@Temperature 77.0 - 399 °F
 14.22 µm/m-°C
@Temperature 25.0 - 316 °C		7.900 µin/in-°F
@Temperature 77.0 - 601 °F
 14.56 µm/m-°C
@Temperature 25.0 - 427 °C		8.089 µin/in-°F
@Temperature 77.0 - 801 °F
 14.9 µm/m-°C
@Temperature 25.0 - 538 °C		8.28 µin/in-°F
@Temperature 77.0 - 1000 °F
 15.48 µm/m-°C
@Temperature 25.0 - 649 °C		8.600 µin/in-°F
@Temperature 77.0 - 1200 °F
 16.27 µm/m-°C
@Temperature 25.0 - 760 °C		9.039 µin/in-°F
@Temperature 77.0 - 1400 °F
 17.06 µm/m-°C
@Temperature 25.0 - 871 °C		9.478 µin/in-°F
@Temperature 77.0 - 1600 °F
Specific Heat Capacity  0.436 J/g-°C
@Temperature 21.0 °C		0.104 BTU/lb-°F
@Temperature 69.8 °F
 0.452 J/g-°C
@Temperature 93.0 °C		0.108 BTU/lb-°F
@Temperature 199 °F
 0.473 J/g-°C
@Temperature 204 °C		0.113 BTU/lb-°F
@Temperature 399 °F
 0.490 J/g-°C
@Temperature 316 °C		0.117 BTU/lb-°F
@Temperature 601 °F
 0.507 J/g-°C
@Temperature 427 °C		0.121 BTU/lb-°F
@Temperature 801 °F
 0.536 J/g-°C
@Temperature 538 °C		0.128 BTU/lb-°F
@Temperature 1000 °F
 0.582 J/g-°C
@Temperature 649 °C		0.139 BTU/lb-°F
@Temperature 1200 °F
 0.611 J/g-°C
@Temperature 982 °C		0.146 BTU/lb-°F
@Temperature 1800 °F
 0.645 J/g-°C
@Temperature 1149 °C		0.154 BTU/lb-°F
@Temperature 2100 °F
 0.737 J/g-°C
@Temperature 760 °C		0.176 BTU/lb-°F
@Temperature 1400 °F
 0.766 J/g-°C
@Temperature 871 °C		0.183 BTU/lb-°F
@Temperature 1600 °F
Thermal Conductivity  10.6 W/m-K
@Temperature 21.0 °C		73.6 BTU-in/hr-ft²-°F
@Temperature 69.8 °F
 11.7 W/m-K
@Temperature 93.0 °C		81.2 BTU-in/hr-ft²-°F
@Temperature 199 °F
 13.5 W/m-K
@Temperature 204 °C		93.7 BTU-in/hr-ft²-°F
@Temperature 399 °F
 15.1 W/m-K
@Temperature 316 °C		105 BTU-in/hr-ft²-°F
@Temperature 601 °F
 16.7 W/m-K
@Temperature 427 °C		116 BTU-in/hr-ft²-°F
@Temperature 801 °F
 18.5 W/m-K
@Temperature 538 °C		128 BTU-in/hr-ft²-°F
@Temperature 1000 °F
 21.2 W/m-K
@Temperature 649 °C		147 BTU-in/hr-ft²-°F
@Temperature 1200 °F
 21.8 W/m-K
@Temperature 760 °C		151 BTU-in/hr-ft²-°F
@Temperature 1400 °F
 22.6 W/m-K
@Temperature 871 °C		157 BTU-in/hr-ft²-°F
@Temperature 1600 °F
 23.4 W/m-K
@Temperature 982 °C		162 BTU-in/hr-ft²-°F
@Temperature 1800 °F
 25.4 W/m-K
@Temperature 1093 °C		176 BTU-in/hr-ft²-°F
@Temperature 1999 °F
Melting Point 1270 - 1329 °C2320 - 2424 °F
Solidus 1280 °C2330 °F
Liquidus 1329 °C2424 °F
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 1010 - 1066 °C1850 - 1951 °F30 min to 4 hours, then water quench
Hot-Working Temperature 930 - 1150 °C1710 - 2100 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 0.010 - 0.70 %0.010 - 0.70 %
Carbon, C 0.0050 - 0.040 %0.0050 - 0.040 %
Chromium, Cr 19.5 - 23 %19.5 - 23 %
Copper, Cu 1.5 - 3.0 %1.5 - 3.0 %
Iron, Fe 5.7 - 28 %5.7 - 28 %as balance
Manganese, Mn <= 1.0 %<= 1.0 %
Molybdenum, Mo 3.0 - 4.0 %3.0 - 4.0 %
Nickel, Ni 45 - 55 %45 - 55 %
Niobium, Nb (Columbium, Cb) 2.5 - 4.5 %2.5 - 4.5 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si <= 0.50 %<= 0.50 %
Sulfur, S <= 0.030 %<= 0.030 %
Titanium, Ti 0.50 - 2.5 %0.50 - 2.5 %

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