661 Stainless Steel sheet

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661 Stainless Steel sheet
Categories:	Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 600 Series Stainless Steel
Material Notes:	0.075-3.4 mm thick sheet, heated to 1175°C for 10 minutes, water quenched.
Key Words:	UNS R30155, AMS 5376, AMS 5531, AMS 5532, AMS 5585, AMS 5768, AMS 5769, AMS 5794, AMS 5795, ANSI G81.40, ASTM A639, ASTM A567, DIN 1.4971
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Physical Properties	Metric	English	Comments

Density	8.25 g/cc	0.298 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	821 MPa	119000 psi
	162 MPa @Temperature 980 °C	23500 psi @Temperature 1800 °F
	217 MPa @Temperature 925 °C	31500 psi @Temperature 1700 °F
	293 MPa @Temperature 870 °C	42500 psi @Temperature 1600 °F
	348 MPa @Temperature 815 °C	50500 psi @Temperature 1500 °F
	452 MPa @Temperature 760 °C	65600 psi @Temperature 1400 °F
	514 MPa @Temperature 705 °C	74500 psi @Temperature 1300 °F
	600 MPa @Temperature 650 °C	87000 psi @Temperature 1200 °F
	655 MPa @Temperature 595 °C	95000 psi @Temperature 1100 °F
	676 MPa @Temperature 540 °C	98000 psi @Temperature 1000 °F
	690 MPa @Temperature 425 °C	100000 psi @Temperature 797 °F
Tensile Strength, Yield	407 MPa @Strain 0.2 %	59000 psi @Strain 0.2 %
	93.1 MPa @Strain 0.2 %, Temperature 980 °C	13500 psi @Strain 0.2 %, Temperature 1800 °F
	131 MPa @Strain 0.2 %, Temperature 925 °C	19000 psi @Strain 0.2 %, Temperature 1700 °F
	179 MPa @Strain 0.2 %, Temperature 870 °C	26000 psi @Strain 0.2 %, Temperature 1600 °F
	210 MPa @Strain 0.2 %, Temperature 815 °C	30500 psi @Strain 0.2 %, Temperature 1500 °F
	234 MPa @Strain 0.2 %, Temperature 760 °C	33900 psi @Strain 0.2 %, Temperature 1400 °F
	248 MPa @Strain 0.2 %, Temperature 540 °C	36000 psi @Strain 0.2 %, Temperature 1000 °F
	255 MPa @Strain 0.2 %, Temperature 650 °C	37000 psi @Strain 0.2 %, Temperature 1200 °F
	259 MPa @Strain 0.2 %, Temperature 705 °C	37600 psi @Strain 0.2 %, Temperature 1300 °F
	269 MPa @Strain 0.2 %, Temperature 595 °C	39000 psi @Strain 0.2 %, Temperature 1100 °F
	272 MPa @Strain 0.2 %, Temperature 425 °C	39500 psi @Strain 0.2 %, Temperature 797 °F
Elongation at Break	42.5 %	42.5 %	in 50 mm
	25.5 % @Temperature 760 °C	25.5 % @Temperature 1400 °F	in 50 mm
	29.5 % @Temperature 870 °C	29.5 % @Temperature 1600 °F	in 50 mm
	31.5 % @Temperature 705 °C	31.5 % @Temperature 1300 °F	in 50 mm
	37.5 % @Temperature 650 °C	37.5 % @Temperature 1200 °F	in 50 mm
	38 % @Temperature 815 °C	38 % @Temperature 1500 °F	in 50 mm
	39.5 % @Temperature 980 °C	39.5 % @Temperature 1800 °F	in 50 mm
	40 % @Temperature 595 °C	40 % @Temperature 1100 °F	in 50 mm
	42.5 % @Temperature 425 °C	42.5 % @Temperature 797 °F	in 50 mm
	42.5 % @Temperature 540 °C	42.5 % @Temperature 1000 °F	in 50 mm
	50 % @Temperature 925 °C	50 % @Temperature 1700 °F	in 50 mm
Modulus of Elasticity	200 GPa	29000 ksi	Typical for stainless steel
Machinability	18 %	18 %	Based on 100% machinability for AISI 1212 steel.
Charpy Impact	81.0 J	59.7 ft-lb	V-Notch
	87.0 J @Temperature 760 °C	64.2 ft-lb @Temperature 1400 °F	V-Notch
	87.0 J @Temperature 815 °C	64.2 ft-lb @Temperature 1500 °F	V-Notch
	87.0 J @Temperature 870 °C	64.2 ft-lb @Temperature 1600 °F	V-Notch
	88.0 J @Temperature 705 °C	64.9 ft-lb @Temperature 1300 °F	V-Notch
	89.0 J @Temperature 650 °C	65.6 ft-lb @Temperature 1200 °F	V-Notch
	95.0 J @Temperature 595 °C	70.1 ft-lb @Temperature 1100 °F	V-Notch
	108 J @Temperature 425 °C	79.7 ft-lb @Temperature 797 °F	V-Notch
	108 J @Temperature 540 °C	79.7 ft-lb @Temperature 1000 °F	V-Notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000942 ohm-cm @Temperature 25.0 °C	0.0000942 ohm-cm @Temperature 77.0 °F
	0.000100 ohm-cm @Temperature 200 °C	0.000100 ohm-cm @Temperature 392 °F
	0.000110 ohm-cm @Temperature 400 °C	0.000110 ohm-cm @Temperature 752 °F
	0.000120 ohm-cm @Temperature 600 °C	0.000120 ohm-cm @Temperature 1110 °F
	0.000120 ohm-cm @Temperature 800 °C	0.000120 ohm-cm @Temperature 1470 °F
	0.000120 ohm-cm @Temperature 1000 °C	0.000120 ohm-cm @Temperature 1830 °F

Thermal Properties	Metric	English	Comments
CTE, linear	14.0 µm/m-°C @Temperature 21.0 - 95.0 °C	7.78 µin/in-°F @Temperature 69.8 - 203 °F
	15.3 µm/m-°C @Temperature 21.0 - 205 °C	8.50 µin/in-°F @Temperature 69.8 - 401 °F
	15.3 µm/m-°C @Temperature 21.0 - 315 °C	8.50 µin/in-°F @Temperature 69.8 - 599 °F
	16.4 µm/m-°C @Temperature 21.0 - 540 °C	9.11 µin/in-°F @Temperature 69.8 - 1000 °F
	17.1 µm/m-°C @Temperature 21.0 - 650 °C	9.50 µin/in-°F @Temperature 69.8 - 1200 °F
	17.5 µm/m-°C @Temperature 21.0 - 760 °C	9.72 µin/in-°F @Temperature 69.8 - 1400 °F
	17.8 µm/m-°C @Temperature 21.0 - 870 °C	9.89 µin/in-°F @Temperature 69.8 - 1600 °F
	18.2 µm/m-°C @Temperature 21.0 - 980 °C	10.1 µin/in-°F @Temperature 69.8 - 1800 °F
Specific Heat Capacity	0.435 J/g-°C @Temperature 21.0 - 100 °C	0.104 BTU/lb-°F @Temperature 69.8 - 212 °F
Thermal Conductivity	12.3 W/m-K @Temperature 21.0 °C	85.4 BTU-in/hr-ft²-°F @Temperature 69.8 °F
	13.1 W/m-K @Temperature 95.0 °C	90.9 BTU-in/hr-ft²-°F @Temperature 203 °F
	14.5 W/m-K @Temperature 205 °C	101 BTU-in/hr-ft²-°F @Temperature 401 °F
	16.1 W/m-K @Temperature 315 °C	112 BTU-in/hr-ft²-°F @Temperature 599 °F
	17.6 W/m-K @Temperature 425 °C	122 BTU-in/hr-ft²-°F @Temperature 797 °F
	19.2 W/m-K @Temperature 540 °C	133 BTU-in/hr-ft²-°F @Temperature 1000 °F
	20.8 W/m-K @Temperature 650 °C	144 BTU-in/hr-ft²-°F @Temperature 1200 °F
Melting Point	1300 - 1355 °C	2370 - 2471 °F
Solidus	1300 °C	2370 °F
Liquidus	1355 °C	2471 °F
Maximum Service Temperature, Air	1040 °C	1900 °F	Continuous or Intermittent Service

Component Elements Properties	Metric	English	Comments
Carbon, C	0.080 - 0.16 %	0.080 - 0.16 %
Chromium, Cr	20 - 22.5 %	20 - 22.5 %
Cobalt, Co	18.5 - 21 %	18.5 - 21 %
Iron, Fe	31 %	31 %
Manganese, Mn	1.0 - 2.0 %	1.0 - 2.0 %
Molybdenum, Mo	2.5 - 3.5 %	2.5 - 3.5 %
Nb + Ta	0.75 - 1.25 %	0.75 - 1.25 %
Nickel, Ni	19 - 21 %	19 - 21 %
Niobium, Nb (Columbium, Cb)	0.50 %	0.50 %
Nitrogen, N	<= 0.20 %	<= 0.20 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silicon, Si	<= 1.0 %	<= 1.0 %
Sulfur, S	<= 0.030 %	<= 0.030 %
Tantalum, Ta	0.50 %	0.50 %
Tungsten, W	2.0 - 3.0 %	2.0 - 3.0 %

References for this datasheet.

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