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Ensinger PEI

Latrobe Marvac 300 VIM-VAR ; 10 in. High Strength Maraging Steel
Categories: Metal; Ferrous Metal; Carbon Steel; Low Carbon Steel; Maraging Steel

Material Notes: MARVAC 300 VIM-VAR is a low carbon maraging steel capable of 270,000 psi minimum yield strength, coupled with excellent toughness and ductility. The alloy has good fabrication characteristics, which include a low rate of work hardening, good machinability and weldability, and a very simple heat treatment process. Marvac 300 is produced by vacuum induction melting followed by VAC-ARC remelting. This approach provides superior cleanness and a preferred ingot structure to enhance transverse mechanical properties. Marvac 300 is supplied in the solution annealed condition.

Solution annealed and aged at 900°F

Information Provided by Timken Latrobe Steel.

Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.

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Physical PropertiesMetricEnglishComments
Density 8.00 g/cc0.289 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 2050 MPa297000 psi
Tensile Strength, Yield 1960 MPa
@Strain 0.2 %
284000 psi
@Strain 0.2 %
Elongation at Break 6.8 %6.8 %
Reduction of Area 30 %30 %
Fracture Toughness >= 66.0 MPa-m½>= 60.1 ksi-in½
 
Thermal PropertiesMetricEnglishComments
CTE, linear 10.8 µm/m-°C
@Temperature 23.0 - 482 °C
6.00 µin/in-°F
@Temperature 73.4 - 900 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 0.10 %0.10 %
Carbon, C 0.010 %0.010 %
Cobalt, Co 9.0 %9.0 %
Iron, Fe 66.75 %66.75 %
Manganese, Mn 0.10 %0.10 %
Molybdenum, Mo 4.8 %4.8 %
Nickel, Ni 18.5 %18.5 %
Silicon, Si 0.10 %0.10 %
Titanium, Ti 0.64 %0.64 %

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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Latrobe Marvac 250 VIM-VAR ; 10 in. High Strength Maraging Steel

NTIMK048 / 19395

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