Ductile Iron tension grade 80-55-06

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Ductile Iron tension grade 80-55-06
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. For example, 80-55-06 ductile iron is specified to have a minimum tensile strength of 80 ksi (552 MPa), a yield strength of 55 ksi (379 MPa) and an elongation of 6%. Determined for a single temperature of ductile iron, heat treated to approximate various standard grades. Properties were obtained using test bars machined from 25 mm keel blocks.
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Physical Properties	Metric	English	Comments

Density	7.10 - 7.20 g/cc	0.257 - 0.260 lb/in³	Typical value of ductile iron

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	192	192
Hardness, Knoop	213	213	Converted from Brinell
Hardness, Vickers	201	201	Approximated. Converted from Brinell hardness.
Tensile Strength, Ultimate	559 MPa	81100 psi
Tensile Strength, Yield	362 MPa @Strain 0.2 %	52500 psi @Strain 0.2 %
Elongation at Break	11.2 %	11.2 %	In 50 mm.
Modulus of Elasticity	168 GPa	24400 ksi
Poissons Ratio	0.31	0.31
Shear Modulus	64.0 GPa	9280 ksi	calculated

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

References for this datasheet.

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MDFE17 / 12014

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