Special Metals INCOLOY® Alloy 020

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Special Metals INCOLOY® Alloy 020
Categories:	Metal; Superalloy; Iron Base
Material Notes:	A nickel-iron-chromium alloy with additions of copper and molybdenum. It also contains niobium for stabilization against sensitization and resultant intergranular corrosion. The alloy has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. Used for tanks, piping, heat exchangers, pumps, valves, and other process equipment. Standard product forms are round, flats, pipe, tube, plate, sheet, strip, and wire. Data provided by the manufacturer, Special Metals.
Key Words:	ASME SB-462 - SB-464, SB-468, Boiler Code Sections III, VIII, IX, UNS N08020; ASTM B 462 - B 464, B 468, B 472 - B 474, B 751
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Physical Properties	Metric	English	Comments

Density	8.05 g/cc	0.291 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	620 MPa	89900 psi	Annealed prior to test
	540 MPa @Temperature 550 °C	78300 psi @Temperature 1020 °F	Annealed prior to test
Tensile Strength, Yield	300 MPa @Strain 0.2 %	43500 psi @Strain 0.2 %	Annealed prior to test
	210 MPa @Strain 0.2 %, Temperature 550 °C	30500 psi @Strain 0.2 %, Temperature 1020 °F	Annealed prior to test
Elongation at Break	41 %	41 %	Annealed prior to test.
	40 % @Temperature 550 °C	40 % @Temperature 1020 °F	Annealed prior to test.

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000108 ohm-cm	0.000108 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	14.7 µm/m-°C @Temperature 20.0 - 100 °C	8.17 µin/in-°F @Temperature 68.0 - 212 °F
Specific Heat Capacity	0.500 J/g-°C	0.120 BTU/lb-°F
Thermal Conductivity	12.3 W/m-K	85.4 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.070 %	<= 0.070 %
Chromium, Cr	19 - 21 %	19 - 21 %
Copper, Cu	3.0 - 4.0 %	3.0 - 4.0 %
Iron, Fe	35 %	35 %	As remainder
Manganese, Mn	<= 2.0 %	<= 2.0 %
Molybdenum, Mo	2.0 - 3.0 %	2.0 - 3.0 %
Nickel, Ni	32 - 38 %	32 - 38 %
Niobium, Nb (Columbium, Cb)	<= 1.0 %	<= 1.0 %	Nb min. is 8xC.
Phosphorus, P	<= 0.045 %	<= 0.045 %
Silicon, Si	<= 1.0 %	<= 1.0 %
Sulfur, S	<= 0.035 %	<= 0.035 %

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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NIND01 / 17518

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