AISI Type 651 (19-9 DL) Stainless Steel

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AISI Type 651 (19-9 DL) Stainless Steel
Categories:	Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 600 Series Stainless Steel
Material Notes:	60 mm diameter bar, warm rolled and stress relieved at 730°C for 8 hours with hardness of 220-241 HB
Key Words:	UNS K63198, AMS 5369, AMS 5526, AMS 5527, AMS 5720, AMS 5721, AMS 5722, ASTM A453, ASTM A457, ASTM 458, ASTM A477, SAE J467(19-9 DL), MIL SPEC MIL-S-46042
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Physical Properties	Original Value	Comments

Density	7.94 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	838 MPa
	331 MPa @Temperature 815 °C
	365 MPa @Temperature 760 °C
	459 MPa @Temperature 705 °C
	534 MPa @Temperature 650 °C
	614 MPa @Temperature 540 °C
	634 MPa @Temperature 480 °C
	672 MPa @Temperature 370 °C
	703 MPa @Temperature 150 °C
	707 MPa @Temperature 260 °C
Tensile Strength, Yield	579 MPa @Strain 0.2 %
	279 MPa @Strain 0.2 %, Temperature 815 °C
	317 MPa @Strain 0.2 %, Temperature 760 °C
	352 MPa @Strain 0.2 %, Temperature 705 °C
	362 MPa @Strain 0.2 %, Temperature 650 °C
	396 MPa @Strain 0.2 %, Temperature 540 °C
	427 MPa @Strain 0.2 %, Temperature 480 °C
	455 MPa @Strain 0.2 %, Temperature 370 °C
	496 MPa @Strain 0.2 %, Temperature 260 °C
	517 MPa @Strain 0.2 %, Temperature 150 °C
Elongation at Break	43 %	in 50 mm
	20.5 % @Temperature 760 °C	in 50 mm
	27.5 % @Temperature 260 °C	in 50 mm
	29 % @Temperature 705 °C	in 50 mm
	29 % @Temperature 815 °C	in 50 mm
	29.5 % @Temperature 540 °C	in 50 mm
	29.5 % @Temperature 480 °C	in 50 mm
	30 % @Temperature 150 °C	in 50 mm
	30.5 % @Temperature 650 °C	in 50 mm
	31.5 % @Temperature 370 °C	in 50 mm
Reduction of Area	55.5 %
	46 % @Temperature 540 °C
	47.5 % @Temperature 650 °C
	48.5 % @Temperature 480 °C
	49 % @Temperature 705 °C
	49.5 % @Temperature 370 °C
	49.5 % @Temperature 260 °C
	52.5 % @Temperature 150 °C
	56.5 % @Temperature 760 °C
	62 % @Temperature 815 °C
Modulus of Elasticity	200 GPa	Typical for stainless steel
Machinability	45 %	Based on 100% machinability for AISI 1212 steel.
Charpy Impact	62.0 J	V-Notch; Hot-Rolled/Stress Relieved at 650°C.

Thermal Properties	Original Value	Comments
CTE, linear	15.3 µm/m-°C @Temperature 21.0 - 93.0 °C
	16.3 µm/m-°C @Temperature 21.0 - 205 °C
	16.7 µm/m-°C @Temperature 21.0 - 315 °C
	17.6 µm/m-°C @Temperature 21.0 - 540 °C
	18.0 µm/m-°C @Temperature 21.0 - 815 °C
Specific Heat Capacity	0.420 J/g-°C @Temperature 0.000 - 100 °C
Thermal Conductivity	13.5 W/m-K
	18.5 W/m-K @Temperature 425 °C
	21.3 W/m-K @Temperature 650 °C
Melting Point	1420 - 1435 °C
Solidus	1420 °C
Liquidus	1435 °C
Maximum Service Temperature, Air	780 °C	Continuous Service
	955 °C	Intermittent

Component Elements Properties	Original Value	Comments
Carbon, C	0.28 - 0.35 %
Chromium, Cr	18 - 21 %
Copper, Cu	<= 0.50 %
Iron, Fe	64 %
Manganese, Mn	0.75 - 1.5 %
Molybdenum, Mo	1.0 - 1.75 %
Nickel, Ni	8.0 - 11 %
Niobium, Nb (Columbium, Cb)	0.25 - 0.60 %
Phosphorus, P	<= 0.040 %
Silicon, Si	0.30 - 0.80 %
Sulfur, S	<= 0.030 %
Titanium, Ti	0.10 - 0.35 %
Tungsten, W	1.0 - 1.75 %

References for this datasheet.

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