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Rulon Bearings

Special Metals INCOLOY® alloy 803 Fe-Ni-Cr Alloy
Categories: Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes: INCOLOY® alloy 803 (UNS S35045), an iron-nickel-chromium alloy, is designed for use in petrochemical, chemical and thermal processing applications. The nickel and chromium contents of alloy 803 are higher than those of INCOLOY alloys 800H and 800HT®. Alloy 803 is a cost-effective material which provides an exceptional level of high-temperature corrosion restance in oxidation, sulfidation and carburization environments. INCOLOY alloy 803 exhibits excellent stress-rupture strengths at elevated temperatures. These characteristics, along with a high resistance to carburization and cyclic oxidation, make INCOLOY alloy 803 the material of choice for many severe applications including ID-finned pyrolysis tubing in high-severity ethylene furnaces.

INCOLOY alloy 803 is produced in all major product forms in a wide variety of sizes, finishes and tempers. One unique product form is internally finned, either straight or spiralled fins, cold finished tubing. Strict process controls ensure complete material traceability and structure consistency throughout the manufacture of all INCOLOY alloy 803 products.

Information Provided by Special Metals Corporation
Key Words: UNS S35045; ASTM A 240; A 480; ASME 2304; ASTM A 213; SA 249; A182
Vendors: Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494.

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Physical PropertiesMetricEnglishComments
Density 7.86 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 552 - 621 MPa80100 - 90100 psiSheet, Cold-rolled & Solution Annealed
 572 - 607 MPa83000 - 88000 psiRod, Hot-finished & Solution Annealed
 572 - 607 MPa83000 - 88000 psiPlate, Hot-rolled & Solution Annealed
 586 - 627 MPa85000 - 90900 psiTubing, Cold-drawn & Solution Annealed
 55.0 MPa
@Temperature 1093 °C		7980 psi
@Temperature 1999 °F		Solution Annealed Tubing
 96.0 MPa
@Temperature 982 °C		13900 psi
@Temperature 1800 °F		Solution Annealed Tubing
 186 MPa
@Temperature 871 °C		27000 psi
@Temperature 1600 °F		Solution Annealed Tubing
 290 MPa
@Temperature 760 °C		42100 psi
@Temperature 1400 °F		Solution Annealed Tubing
 448 MPa
@Temperature 649 °C		65000 psi
@Temperature 1200 °F		Solution Annealed Tubing
 608 MPa
@Temperature 23.0 °C		88200 psi
@Temperature 73.4 °F
 627 MPa
@Temperature 20.0 °C		90900 psi
@Temperature 68.0 °F		Solution Annealed Tubing
 640 MPa
@Temperature 870 °C,
Time 3.60e+6 sec		92800 psi
@Temperature 1600 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 645 MPa
@Temperature 870 °C,
Time 1.80e+6 sec		93500 psi
@Temperature 1600 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 703 MPa
@Temperature 760 °C,
Time 7.20e+6 sec		102000 psi
@Temperature 1400 °F,
Time 2000 hour		Room Temperature properties after Isothermal Exposure
 718 MPa
@Temperature 760 °C,
Time 3.60e+6 sec		104000 psi
@Temperature 1400 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 726 MPa
@Temperature 760 °C,
Time 1.80e+6 sec		105000 psi
@Temperature 1400 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 874 MPa
@Temperature 650 °C,
Time 3.60e+6 sec		127000 psi
@Temperature 1200 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 887 MPa
@Temperature 650 °C,
Time 1.80e+6 sec		129000 psi
@Temperature 1200 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
Tensile Strength, Yield  207 - 255 MPa
@Strain 0.2 %		30000 - 37000 psi
@Strain 0.2 %		Rod, Hot-finished & Solution Annealed
 275 - 296 MPa
@Strain 0.2 %		39900 - 42900 psi
@Strain 0.2 %		Plate, Hot-rolled & Solution Annealed
 275 - 310 MPa
@Strain 0.2 %		39900 - 45000 psi
@Strain 0.2 %		Tubing, Cold-drawn & Solution Annealed
 275 - 331 MPa
@Strain 0.2 %		39900 - 48000 psi
@Strain 0.2 %		Sheet, Cold-rolled & Solution Annealed
 48.0 MPa
@Strain 0.2 %,
Temperature 1093 °C		6960 psi
@Strain 0.2 %,
Temperature 1999 °F		Solution Annealed Tubing
 55.0 MPa
@Strain 0.2 %,
Temperature 982 °C		7980 psi
@Strain 0.2 %,
Temperature 1800 °F		Solution Annealed Tubing
 124 MPa
@Strain 0.2 %,
Temperature 871 °C		18000 psi
@Strain 0.2 %,
Temperature 1600 °F		Solution Annealed Tubing
 193 MPa
@Strain 0.2 %,
Temperature 649 °C		28000 psi
@Strain 0.2 %,
Temperature 1200 °F		Solution Annealed Tubing
 193 MPa
@Strain 0.2 %,
Temperature 760 °C		28000 psi
@Strain 0.2 %,
Temperature 1400 °F		Solution Annealed Tubing
 247 MPa
@Strain 0.2 %,
Temperature 20.0 °C		35800 psi
@Strain 0.2 %,
Temperature 68.0 °F		after Isothermal Exposure; Solution Annealed
 310 MPa
@Strain 0.2 %,
Temperature 20.0 °C		45000 psi
@Strain 0.2 %,
Temperature 68.0 °F		Solution Annealed Tubing
 259 MPa
@Strain 0.2 %,
Time 3.60e+6 sec		37600 psi
@Strain 0.2 %,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 266 MPa
@Strain 0.2 %,
Time 1.80e+6 sec		38600 psi
@Strain 0.2 %,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 289 MPa
@Strain 0.2 %,
Time 7.20e+6 sec		41900 psi
@Strain 0.2 %,
Time 2000 hour		Room Temperature properties after Isothermal Exposure
 303 MPa
@Strain 0.2 %,
Time 3.60e+6 sec		43900 psi
@Strain 0.2 %,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 316 MPa
@Strain 0.2 %,
Time 1.80e+6 sec		45800 psi
@Strain 0.2 %,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 498 MPa
@Strain 0.2 %,
Time 3.60e+6 sec		72200 psi
@Strain 0.2 %,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 500 MPa
@Strain 0.2 %,
Time 1.80e+6 sec		72500 psi
@Strain 0.2 %,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 259 MPa
@Strain 0.2 %,
Treatment Temp. 870 °C		37600 psi
@Strain 0.2 %,
Treatment Temp. 1600 °F		Room Temperature properties after Isothermal Exposure
 266 MPa
@Strain 0.2 %,
Treatment Temp. 870 °C		38600 psi
@Strain 0.2 %,
Treatment Temp. 1600 °F		Room Temperature properties after Isothermal Exposure
 289 MPa
@Strain 0.2 %,
Treatment Temp. 760 °C		41900 psi
@Strain 0.2 %,
Treatment Temp. 1400 °F		Room Temperature properties after Isothermal Exposure
 303 MPa
@Strain 0.2 %,
Treatment Temp. 760 °C		43900 psi
@Strain 0.2 %,
Treatment Temp. 1400 °F		Room Temperature properties after Isothermal Exposure
 316 MPa
@Strain 0.2 %,
Treatment Temp. 760 °C		45800 psi
@Strain 0.2 %,
Treatment Temp. 1400 °F		Room Temperature properties after Isothermal Exposure
 498 MPa
@Strain 0.2 %,
Treatment Temp. 650 °C		72200 psi
@Strain 0.2 %,
Treatment Temp. 1200 °F		Room Temperature properties after Isothermal Exposure
 500 MPa
@Strain 0.2 %,
Treatment Temp. 650 °C		72500 psi
@Strain 0.2 %,
Treatment Temp. 1200 °F		Room Temperature properties after Isothermal Exposure
Elongation at Break 40 - 45 %40 - 45 %Sheet, Cold-rolled & Solution Annealed
 43 - 47 %43 - 47 %Plate, Hot-rolled & Solution Annealed
 45 - 50 %45 - 50 %Tubing, Cold-drawn & Solution Annealed
 45 - 50 %45 - 50 %Rod, Hot-finished & Solution Annealed
 49 %
@Temperature 20.0 °C		49 %
@Temperature 68.0 °F		Solution Annealed Tubing
 49 %
@Temperature 649 °C		49 %
@Temperature 1200 °F		Solution Annealed Tubing
 49.3 %
@Temperature 23.0 °C		49.3 %
@Temperature 73.4 °F
 66 %
@Temperature 760 °C		66 %
@Temperature 1400 °F		Solution Annealed Tubing
 80 %
@Temperature 982 °C		80 %
@Temperature 1800 °F		Solution Annealed Tubing
 80 %
@Temperature 1093 °C		80 %
@Temperature 1999 °F		Solution Annealed Tubing
 88 %
@Temperature 871 °C		88 %
@Temperature 1600 °F		Solution Annealed Tubing
 25.6 %
@Treatment Temp. 650 °C,
Time 3.60e+6 sec		25.6 %
@Treatment Temp. 1200 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 27.5 %
@Treatment Temp. 650 °C,
Time 1.80e+6 sec		27.5 %
@Treatment Temp. 1200 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 32.9 %
@Treatment Temp. 760 °C,
Time 7.20e+6 sec		32.9 %
@Treatment Temp. 1400 °F,
Time 2000 hour		Room Temperature properties after Isothermal Exposure
 33.9 %
@Treatment Temp. 760 °C,
Time 1.80e+6 sec		33.9 %
@Treatment Temp. 1400 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 34.4 %
@Treatment Temp. 760 °C,
Time 3.60e+6 sec		34.4 %
@Treatment Temp. 1400 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 38.1 %
@Treatment Temp. 870 °C,
Time 1.80e+6 sec		38.1 %
@Treatment Temp. 1600 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 38.5 %
@Treatment Temp. 870 °C,
Time 3.60e+6 sec		38.5 %
@Treatment Temp. 1600 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
Reduction of Area  54 %
@Temperature 760 °C		54 %
@Temperature 1400 °F		Solution Annealed Tubing
 55 %
@Temperature 649 °C		55 %
@Temperature 1200 °F		Solution Annealed Tubing
 66 %
@Temperature 871 °C		66 %
@Temperature 1600 °F		Solution Annealed Tubing
 67 %
@Temperature 20.0 °C		67 %
@Temperature 68.0 °F		Solution Annealed Tubing
 75 %
@Temperature 982 °C		75 %
@Temperature 1800 °F		Solution Annealed Tubing
 77 %
@Temperature 1093 °C		77 %
@Temperature 1999 °F		Solution Annealed Tubing
Creep Strength  3.00 MPa
@Temperature 1093 °C		435 psi
@Temperature 1999 °F		0.0001%/hr
 6.00 MPa
@Temperature 1093 °C		870 psi
@Temperature 1999 °F		0.005%/hr
 50.0 MPa
@Temperature 760 °C		7250 psi
@Temperature 1400 °F		0.00002%/hr
 100 MPa
@Temperature 760 °C		14500 psi
@Temperature 1400 °F		0.005%/hr
Rupture Strength  2.07 MPa
@Temperature 1150 °C,
Time 7.20e+7 sec		300 psi
@Temperature 2100 °F,
Time 20000 hour
 10.3 MPa
@Temperature 1150 °C,
Time 72000 sec		1500 psi
@Temperature 2100 °F,
Time 20.0 hour
 207 MPa
@Temperature 593 °C,
Time 7.20e+7 sec		30000 psi
@Temperature 1100 °F,
Time 20000 hour
 414 MPa
@Temperature 593 °C,
Time 72000 sec		60000 psi
@Temperature 1100 °F,
Time 20.0 hour
Modulus of Elasticity 195 GPa
@Temperature 20.0 °C		28300 ksi
@Temperature 68.0 °F
Tensile Modulus  131.8 GPa
@Temperature 1000 °C		19120 ksi
@Temperature 1830 °F
 151.8 GPa
@Temperature 700 °C		22020 ksi
@Temperature 1290 °F
 171.1 GPa
@Temperature 400 °C		24820 ksi
@Temperature 752 °F
 192.5 GPa
@Temperature 100 °C		27920 ksi
@Temperature 212 °F
 195.3 GPa
@Temperature 20.0 °C		28330 ksi
@Temperature 68.0 °F
Poissons Ratio 0.32
@Temperature 20.0 °C		0.32
@Temperature 68.0 °F
Shear Modulus 73.8 GPa
@Temperature 20.0 °C		10700 ksi
@Temperature 68.0 °F
Charpy Impact, Notched 407 J/cm²
@Temperature 23.0 °C		1940 ft-lb/in²
@Temperature 73.4 °F
 64.0 - 66.0 J/cm²
@Treatment Temp. 760 °C,
Time 7.20e+6 sec		305 - 314 ft-lb/in²
@Treatment Temp. 1400 °F,
Time 2000 hour		Room Temperature properties after Isothermal Exposure
 76.0 - 86.0 J/cm²
@Treatment Temp. 760 °C,
Time 3.60e+6 sec		362 - 409 ft-lb/in²
@Treatment Temp. 1400 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 110 - 124 J/cm²
@Treatment Temp. 870 °C,
Time 3.60e+6 sec		524 - 590 ft-lb/in²
@Treatment Temp. 1600 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 124 - 127 J/cm²
@Treatment Temp. 650 °C,
Time 3.60e+6 sec		590 - 604 ft-lb/in²
@Treatment Temp. 1200 °F,
Time 1000 hour		Room Temperature properties after Isothermal Exposure
 129 - 132 J/cm²
@Treatment Temp. 650 °C,
Time 1.80e+6 sec		614 - 628 ft-lb/in²
@Treatment Temp. 1200 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 136 J/cm²
@Treatment Temp. 870 °C,
Time 1.80e+6 sec		647 ft-lb/in²
@Treatment Temp. 1600 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 139 - 154 J/cm²
@Treatment Temp. 760 °C,
Time 1.80e+6 sec		662 - 733 ft-lb/in²
@Treatment Temp. 1400 °F,
Time 500 hour		Room Temperature properties after Isothermal Exposure
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  0.000103 ohm-cm
@Temperature 20.0 °C		0.000103 ohm-cm
@Temperature 68.0 °F
 0.000106 ohm-cm
@Temperature 100 °C		0.000106 ohm-cm
@Temperature 212 °F
 0.000116 ohm-cm
@Temperature 400 °C		0.000116 ohm-cm
@Temperature 752 °F
 0.000123 ohm-cm
@Temperature 700 °C		0.000123 ohm-cm
@Temperature 1290 °F
 0.000127 ohm-cm
@Temperature 1000 °C		0.000127 ohm-cm
@Temperature 1830 °F
Magnetic Permeability 1.0011.001at 200 Oersted (15.9 kA/m)
 
Thermal PropertiesMetricEnglishComments
CTE, linear  14.0 µm/m-°C
@Temperature 100 °C		7.78 µin/in-°F
@Temperature 212 °F
 15.8 µm/m-°C
@Temperature 400 °C		8.78 µin/in-°F
@Temperature 752 °F
 16.9 µm/m-°C
@Temperature 700 °C		9.39 µin/in-°F
@Temperature 1290 °F
 18.0 µm/m-°C
@Temperature 1000 °C		10.0 µin/in-°F
@Temperature 1830 °F
 18.4 µm/m-°C
@Temperature 1100 °C		10.2 µin/in-°F
@Temperature 2010 °F
Specific Heat Capacity 0.476 J/g-°C0.114 BTU/lb-°F
Thermal Conductivity  11.3 W/m-K
@Temperature 20.0 °C		78.4 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
 12.6 W/m-K
@Temperature 100 °C		87.4 BTU-in/hr-ft²-°F
@Temperature 212 °F
 17.7 W/m-K
@Temperature 400 °C		123 BTU-in/hr-ft²-°F
@Temperature 752 °F
 23.2 W/m-K
@Temperature 700 °C		161 BTU-in/hr-ft²-°F
@Temperature 1290 °F
 27.4 W/m-K
@Temperature 1000 °C		190 BTU-in/hr-ft²-°F
@Temperature 1830 °F
Melting Point 1365 - 1400 °C2489 - 2550 °F
Solidus 1365 °C2489 °F
Liquidus 1400 °C2550 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 0.15 - 0.60 %0.15 - 0.60 %
Carbon, C 0.060 - 0.10 %0.060 - 0.10 %
Chromium, Cr 25 - 29 %25 - 29 %
Copper, Cu <= 0.75 %<= 0.75 %
Iron, Fe 29.435 - 42.64 %29.435 - 42.64 %Balance
Manganese, Mn <= 1.5 %<= 1.5 %
Nickel, Ni 32 - 37 %32 - 37 %
Silicon, Si <= 1.0 %<= 1.0 %
Sulfur, S <= 0.015 %<= 0.015 %
Titanium, Ti 0.15 - 0.60 %0.15 - 0.60 %

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