Ductile Iron MIL-I-24137 Class A

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Ductile Iron MIL-I-24137 Class A
Categories:	Metal; Ferrous Metal; Cast Iron; Alloy Cast Iron; Ductile Iron
Material Notes:	Carbon represents the total carbon in the listed composition. Cerium is an optional constituent in ductile iron. Most ductile irons are specified based on mechanical properties and have loosely defined compositions. Ferritic, annealed. Applications include general shipboard service, electrical equipment, engine blocks, pumps, housings, gears, valve bodies, clamps, and cylinders.
Key Words:	UNS F33101, MIL-I-24137 Class A, ferritic, shipboard service
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Physical Properties	Original Value	Comments

Density	7.10 - 7.20 g/cc	Typical value of ductile iron

Mechanical Properties	Original Value	Comments
Hardness, Brinell	<= 190
Hardness, Knoop	211	Converted from Brinell
Hardness, Vickers	199	Approximated. Converted from Brinell hardness.
Tensile Strength, Ultimate	>= 414 MPa
Tensile Strength, Yield	>= 310 MPa
Elongation at Break	15 %	In 50 mm.

Component Elements Properties	Original Value	Comments
Carbon, C	3.6 - 3.8 %
Cerium, Ce	0.0050 - 0.20 %
Chromium, Cr	0.030 - 0.070 %
Copper, Cu	0.15 - 1.0 %
Iron, Fe	90.738 - 94.175 %
Magnesium, Mg	0.030 - 0.060 %
Manganese, Mn	0.15 - 1.0 %
Molybdenum, Mo	0.010 - 0.10 %
Nickel, Ni	0.050 - 0.20 %
Phosphorus, P	<= 0.030 %
Silicon, Si	1.8 - 2.8 %
Sulfur, S	<= 0.0020 %

References for this datasheet.

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MDFE12 / 12009

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