Magnesium AM100A-T61, Sand Cast

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Magnesium AM100A-T61, Sand Cast
Categories:	Metal; Nonferrous Metal; Magnesium Alloy
Material Notes:	AM100A-T61 is pressure tight, with a good combination of strength and elongation. Can be cast as permanent-mold (AMS 4483, ASTM B 199), investment cast (AMS T6 temper, 4455, ASTM B 403), Sand cast (ASTM B 80). No longer widely used, typical uses were commercial and military pressure-tight sand and permanent mold structural castings with good combinations of tensile strength, yield strength, and elongation. Very good weldability.
Key Words:	UNS M10100; SAE J465; Mg; Old SAE 502; AMS 4483; ASTM B 80; ASTM B 199; AMS 4455 T6 temper; ASTM B 403 (Ingot UNS M10101)
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Physical Properties	Original Value	Comments

Density	1.83 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	69	500 kg load, 10 mm ball
Hardness, Knoop	92	Estimated from Brinell
Hardness, Rockwell E	80
Hardness, Vickers	79	Estimated from Brinell
Tensile Strength, Ultimate	275 MPa
Tensile Strength, Yield	150 MPa @Strain 0.2 %
Elongation at Break	1.0 %	in 50 mm
Tensile Modulus	45.0 GPa
Compressive Yield Strength	150 MPa	at 0.2% offset
Ultimate Bearing Strength	560 MPa
Bearing Yield Strength	470 MPa
Poissons Ratio	0.35
Fatigue Strength	70.0 MPa @# of Cycles 5.00e+8	R.R. Moore Test
Machinability	100 %	Relative Rating, 100=Best
Shear Modulus	17.0 GPa
Shear Strength	145 MPa
Charpy Impact	0.900 J	V-notch

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000150 ohm-cm

Thermal Properties	Original Value	Comments
Heat of Fusion	372 J/g
CTE, linear	25.0 µm/m-°C @Temperature 0.000 - 100 °C
	27.0 µm/m-°C @Temperature 20.0 - 200 °C	Estimated from similar Mg alloys
Specific Heat Capacity	1.05 J/g-°C
Thermal Conductivity	73.0 W/m-K
Melting Point	>= 430 °C	Incipient Melting
Solidus	463 °C
Liquidus	595 °C

Processing Properties	Original Value	Comments
Casting Temperature	735 - 845 °C	Sand Casting

Component Elements Properties	Original Value	Comments
Aluminum, Al	9.3 - 10.7 %
Copper, Cu	<= 0.10 %
Magnesium, Mg	90 %	As Remainder
Manganese, Mn	>= 0.10 %
Nickel, Ni	<= 0.010 %
Silicon, Si	<= 0.30 %
Zinc, Zn	<= 0.30 %

References for this datasheet.

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