Special Metals INCOLOY® alloy 832 Stainless Steel

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Special Metals INCOLOY® alloy 832 Stainless Steel
Categories:	Metal; Ferrous Metal; Stainless Steel
Material Notes:	INCOLOY® alloy 832 is a low cost stainless steel developed specifically for domestic and industrial sheathed heater applications. With specific chemistry additions to ensure satisfactory formulation of a protective and aesthetically pleasing surface oxide film, it can replace, for example, Type 309 stainless steel, or the more expensive, higher nickel products such as INCOLOY alloys 800 or 840 (if cost is the only consideration). The alloy exhibits excellent thermal stability and good resistance to hot salt corrosion, and to pitting. It is readily formed and has excellent weldability, making it suitable for use on high output continuous strip welding machines. Information Provided by Special Metals Corporation
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Physical Properties	Original Value	Comments

Density	7.75 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	82.3 @Temperature 23.0 °C
Tensile Strength, Ultimate	762 MPa @Temperature 23.0 °C
Tensile Strength, Yield	364 MPa @Strain 0.2 %, Temperature 20.0 °C	strip with ASTM grain size of 10.5-11.0
	364 MPa @Strain 0.2 %, Thickness 0.500 mm	strip with ASTM grain size of 10.5-11.0
Elongation at Break	37.5 % @Thickness 0.500 mm, Temperature 20.0 °C	strip with ASTM grain size of 10.5-11.0

Electrical Properties	Original Value	Comments
Electrical Resistivity	482.91 ohm-cir-mil/ft @Temperature 22.0 °C	0.100-in Cold-Rolled Plate; ASTM B-63
	508.95 ohm-cir-mil/ft @Temperature 93.0 °C	0.100-in Cold-Rolled Plate; ASTM B-63
	546.19 ohm-cir-mil/ft @Temperature 204 °C	0.100-in Cold-Rolled Plate; ASTM B-63
	577.47 ohm-cir-mil/ft @Temperature 315 °C	0.100-in Cold-Rolled Plate; ASTM B-63
	607.6 ohm-cir-mil/ft @Temperature 427 °C	0.100-in Cold-Rolled Plate; ASTM B-63
	637.68 ohm-cir-mil/ft @Temperature 538 °C	0.100-in Cold-Rolled Plate; ASTM B-63
	665.29 ohm-cir-mil/ft @Temperature 649 °C	0.100-in Cold-Rolled Plate; ASTM B-63
	691.34 ohm-cir-mil/ft @Temperature 760 °C	0.100-in Cold-Rolled Plate; ASTM B-63

Thermal Properties	Original Value	Comments
CTE, linear	16.61 µm/m-°C @Temperature 100 °C	0.100-in Cold-Rolled Plate; ASTM E 228
	16.78 µm/m-°C @Temperature 200 °C	0.100-in Cold-Rolled Plate; ASTM E 228
	17.02 µm/m-°C @Temperature 300 °C	0.100-in Cold-Rolled Plate; ASTM E 228
	17.26 µm/m-°C @Temperature 400 °C	0.100-in Cold-Rolled Plate; ASTM E 228
	17.45 µm/m-°C @Temperature 500 °C	0.100-in Cold-Rolled Plate; ASTM E 228
	17.48 µm/m-°C @Temperature 700 °C	0.100-in Cold-Rolled Plate; ASTM E 228
	17.69 µm/m-°C @Temperature 600 °C	0.100-in Cold-Rolled Plate; ASTM E 228
Specific Heat Capacity	0.472 J/g-°C @Temperature 23.0 °C
	0.497 J/g-°C @Temperature 100 °C
	0.540 J/g-°C @Temperature 300 °C
	0.572 J/g-°C @Temperature 500 °C
	0.597 J/g-°C @Temperature 700 °C
	0.618 J/g-°C @Temperature 900 °C
	0.626 J/g-°C @Temperature 1000 °C
	0.638 J/g-°C @Temperature 1150 °C
Thermal Conductivity	14.189 W/m-K @Temperature 23.0 °C
	15.561 W/m-K @Temperature 100 °C
	18.552 W/m-K @Temperature 300 °C
	21.393 W/m-K @Temperature 500 °C
	24.193 W/m-K @Temperature 700 °C
	26.926 W/m-K @Temperature 900 °C
	28.252 W/m-K @Temperature 1000 °C
	30.238 W/m-K @Temperature 1150 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.15 %
Carbon, C	<= 0.050 %
Chromium, Cr	19.5 - 21 %
Copper, Cu	<= 0.75 %
Iron, Fe	60.645 - 70.7 %	Balance
Manganese, Mn	0.40 %
Molybdenum, Mo	0.40 %
Nickel, Ni	8.75 - 15.5 %
Silicon, Si	0.70 %
Sulfur, S	<= 0.0050 %
Titanium, Ti	0.40 %

Descriptive Properties
Thermal Diffusivity (cm²/s)	0.0385	at 23°C
	0.0401	at 100°C
	0.044	at 300°C
	0.0479	at 500°C
	0.0519	at 700°C
	0.0558	at 900°C
	0.0578	at 1000°C
	0.0607	at 1150°C

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