Overview of materials for Gray Cast Iron

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Overview of materials for Gray Cast Iron
Categories:	Metal; Ferrous Metal; Cast Iron; Gray Cast Iron
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Gray Cast Iron". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Metric	English	Comments

Density	6.80 - 7.34 g/cc	0.246 - 0.265 lb/in³	Average value: 7.20 g/cc Grade Count:35

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	120 - 550	120 - 550	Average value: 217 Grade Count:38
Hardness, Knoop	173 - 337	173 - 337	Average value: 249 Grade Count:17
Hardness, Rockwell C	11.4 - 29.0	11.4 - 29.0	Average value: 17.9 Grade Count:14
Hardness, Vickers	161 - 321	161 - 321	Average value: 235 Grade Count:17
Tensile Strength, Ultimate	115 - 700 MPa	16700 - 102000 psi	Average value: 310 MPa Grade Count:38
Tensile Strength, Yield	65.5 - 420 MPa	9500 - 60900 psi	Average value: 265 MPa Grade Count:11
Elongation at Break	1.00 - 15.0 %	1.00 - 15.0 %	Average value: 6.67 % Grade Count:6
Modulus of Elasticity	62.1 - 162 GPa	9000 - 23500 ksi	Average value: 118 GPa Grade Count:15
Flexural Yield Strength	421 - 641 MPa	61000 - 93000 psi	Average value: 575 MPa Grade Count:5
Compressive Yield Strength	572 - 1380 MPa	83000 - 200000 psi	Average value: 943 MPa Grade Count:16
Poissons Ratio	0.240 - 0.330	0.240 - 0.330	Average value: 0.294 Grade Count:13
Fatigue Strength	68.9 - 207 MPa	10000 - 30000 psi	Average value: 119 MPa Grade Count:16
Machinability	0.000 - 125 %	0.000 - 125 %	Average value: 48.8 % Grade Count:8
Shear Modulus	27.0 - 65.5 GPa	3920 - 9500 ksi	Average value: 47.6 GPa Grade Count:13
Shear Strength	149 - 610 MPa	21600 - 88500 psi	Average value: 304 MPa Grade Count:15
Izod Impact Unnotched	5.42 - 54.2 J	4.00 - 40.0 ft-lb	Average value: 29.7 J Grade Count:6

Component Elements Properties	Metric	English	Comments
Carbon, C	2.60 - 4.00 %	2.60 - 4.00 %	Average value: 3.33 % Grade Count:32
Chromium, Cr	0.0500 - 2.50 %	0.0500 - 2.50 %	Average value: 0.464 % Grade Count:11
Copper, Cu	0.0500 - 7.50 %	0.0500 - 7.50 %	Average value: 0.887 % Grade Count:10
Iron, Fe	65.1 - 95.3 %	65.1 - 95.3 %	Average value: 92.8 % Grade Count:32
Magnesium, Mg	0.0400 - 0.0700 %	0.0400 - 0.0700 %	Average value: 0.0550 % Grade Count:5
Manganese, Mn	0.100 - 1.50 %	0.100 - 1.50 %	Average value: 0.610 % Grade Count:32
Molybdenum, Mo	0.0500 - 0.600 %	0.0500 - 0.600 %	Average value: 0.122 % Grade Count:9
Nickel, Ni	0.0500 - 17.5 %	0.0500 - 17.5 %	Average value: 1.68 % Grade Count:10
Phosphorus, P	0.0150 - 0.200 %	0.0150 - 0.200 %	Average value: 0.106 % Grade Count:31
Silicon, Si	1.00 - 3.00 %	1.00 - 3.00 %	Average value: 2.23 % Grade Count:32
Sulfur, S	0.00500 - 0.150 %	0.00500 - 0.150 %	Average value: 0.0985 % Grade Count:32

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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M01017 / 81719

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