Crucible Steel XM-19 Stainless Steel

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Crucible Steel XM-19 Stainless Steel
Categories:	Metal; Ferrous Metal; Stainless Steel; T 300 Series Stainless Steel
Material Notes:	Crucible XM-19 Stainless is a nitrogen strengthened, low carbon, austenitic, stainless steel that provides good corrosion resistance in combination with high strength. The alloy has better corrosion resistance than Type 316 with approximately twice the yield strength. It can be welded, machined and cold worked using the same equipment and methods used for the conventional 300 series stainless steels. It is nonmagnetic as annealed and after severe cold work. Mechanical properties reported for annealed one inch round bar. Information provided by Crucible Industries
Key Words:	UNS S20910
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Physical Properties	Metric	English	Comments

Density	7.889 g/cc	0.2850 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell B	96	96
Tensile Strength, Ultimate	350 MPa @Temperature 816 °C	50800 psi @Temperature 1500 °F
	600 MPa @Temperature 593 °C	87000 psi @Temperature 1100 °F
	750 MPa @Temperature 260 °C	109000 psi @Temperature 500 °F
	827 MPa @Temperature 21.1 °C	120000 psi @Temperature 70.0 °F
Tensile Strength, Yield	240 MPa @Temperature 816 °C	34800 psi @Temperature 1500 °F
	300 MPa @Temperature 538 °C	43500 psi @Temperature 1000 °F
	340 MPa @Temperature 260 °C	49300 psi @Temperature 500 °F
	448 MPa @Temperature 21.1 °C	65000 psi @Temperature 70.0 °F	0.2%
Elongation at Break	32 % @Temperature 427 °C	32 % @Temperature 800 °F	in 2"
	35 % @Temperature 204 °C	35 % @Temperature 400 °F	in 2"
	36 % @Temperature 649 °C	36 % @Temperature 1200 °F	in 2"
	40 % @Temperature 816 °C	40 % @Temperature 1500 °F	in 2"
	45 % @Temperature 21.1 °C	45 % @Temperature 70.0 °F	in 2"
Reduction of Area	65 % @Temperature 21.1 °C	65 % @Temperature 70.0 °F
	65 % @Temperature 260 °C	65 % @Temperature 500 °F
	65 % @Temperature 538 °C	65 % @Temperature 1000 °F
	70 % @Temperature 816 °C	70 % @Temperature 1500 °F
Charpy Impact	217 J	160 ft-lb	V-Notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000820 ohm-cm	0.0000820 ohm-cm
Magnetic Permeability	1.004 @Magnetic Field 0.0200 T	1.004 @Magnetic Field 0.0200 T

Thermal Properties	Metric	English	Comments
CTE, linear	16.2 µm/m-°C @Temperature 21.0 - 93.0 °C	9.00 µin/in-°F @Temperature 69.8 - 199 °F
	17.8 µm/m-°C @Temperature 21.0 - 427 °C	9.89 µin/in-°F @Temperature 69.8 - 801 °F
	20.0 µm/m-°C @Temperature 21.0 - 871 °C	11.1 µin/in-°F @Temperature 69.8 - 1600 °F
Thermal Conductivity	15.6 W/m-K @Temperature 149 °C	108 BTU-in/hr-ft²-°F @Temperature 300 °F
	20.3 W/m-K @Temperature 482 °C	141 BTU-in/hr-ft²-°F @Temperature 900 °F
	25.2 W/m-K @Temperature 816 °C	175 BTU-in/hr-ft²-°F @Temperature 1500 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.030 %	<= 0.030 %
Chromium, Cr	20.5 - 23.5 %	20.5 - 23.5 %
Iron, Fe	>= 48.9 %	>= 48.9 %	as balance
Manganese, Mn	4.0 - 6.0 %	4.0 - 6.0 %
Molybdenum, Mo	1.5 - 3.0 %	1.5 - 3.0 %
Nickel, Ni	11.5 - 13.5 %	11.5 - 13.5 %
Niobium, Nb (Columbium, Cb)	0.10 - 0.30 %	0.10 - 0.30 %
Nitrogen, N	0.20 - 0.40 %	0.20 - 0.40 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silicon, Si	<= 1.0 %	<= 1.0 %
Sulfur, S	<= 0.030 %	<= 0.030 %
Vanadium, V	0.10 - 0.30 %	0.10 - 0.30 %

Descriptive Properties
Corrosion Rate	0.1 mils/year		50% Acetic Acid (Boiling)
	0.2 mils/year		5% H₂SO₄(176°F)
	0.3 mils/year		20% HNO₃(200°F)
	15 mils/year		10% H₂SO₄(176°F)
	2.3 mils/year		10% Formic Acid (Boiling)

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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NCRUC907 / 160358

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