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Rulon Bearings

Special Metals INCOLOY® alloy 028 Austenitic Stainless Steel
Categories: Metal; Ferrous Metal; Austenitic; Stainless Steel

Material Notes: INCOLOY® alloy 028 (UNS N08028/W. Nr. 1.4563) is a highly alloyed austenitic stainless steel offering resistance to a variety of corrosive media. By virtue of its contents of chromium and molybdenum, the alloy offers resistance to both oxidizing and reducing acids and salts. The presence of copper increases its resistance to sulfuric acid. The alloy is used in the chemical and petrochemical processing industry. Alloy tubes are cold worked to high strength levels for downhole service in moderately corrosive deep sour gas wells.

Information Provided by Special Metals Corporation

Key Words: UNS N08028; W. Nr. 1.4563; ASTM B 668; B709; B 829
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Physical PropertiesMetricEnglishComments
Density 8.00 g/cc0.289 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell B 80 - 9080 - 90Annealed
Hardness, Rockwell C 3333Cold Worked
Tensile Strength at Break 500 MPa72500 psiAnnealed
 896 MPa130000 psiCold Worked
Tensile Strength, Yield 214 MPa31000 psiAnnealed
 758 MPa110000 psiCold Worked
Elongation at Break 15 %15 %Cold Worked
 40 %40 %Annealed
Modulus of Elasticity 200 GPa
@Temperature 23.0 °C
29000 ksi
@Temperature 73.4 °F
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000990 ohm-cm
@Temperature 23.0 °C
0.0000990 ohm-cm
@Temperature 73.4 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  15.0 µm/m-°C
@Temperature 93.0 °C
8.33 µin/in-°F
@Temperature 199 °F
 15.9 µm/m-°C
@Temperature 260 °C
8.83 µin/in-°F
@Temperature 500 °F
 16.8 µm/m-°C
@Temperature 427 °C
9.33 µin/in-°F
@Temperature 801 °F
Specific Heat Capacity 0.450 J/g-°C0.108 BTU/lb-°F
 0.450 J/g-°C
@Temperature 100 °C
0.108 BTU/lb-°F
@Temperature 212 °F
Thermal Conductivity 11.4 W/m-K
@Temperature 23.0 °C
79.1 BTU-in/hr-ft²-°F
@Temperature 73.4 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.030 %<= 0.030 %
Chromium, Cr 26 - 28 %26 - 28 %
Copper, Cu 0.60 - 1.4 %0.60 - 1.4 %
Iron, Fe 29.01 - 40.4 %29.01 - 40.4 %Balance
Manganese, Mn <= 2.5 %<= 2.5 %
Molybdenum, Mo 3.0 - 4.0 %3.0 - 4.0 %
Nickel, Ni 30 - 34 %30 - 34 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si <= 1.0 %<= 1.0 %
Sulfur, S <= 0.030 %<= 0.030 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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