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Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel

Category Metal , Ferrous Metal , Carbon Steel , Low Carbon Steel , Maraging Steel
Manufacturer Latrobe Steel
Trade Name Marvac
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Latrobe Marvac 300 VIM-VAR ; 5 RCS High Strength Maraging Steel.pdf
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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°FInformation Provided by Timken Latrobe Steel.Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.
Physical Properties Metric English Comments
Density 8.00 g/cc
0.289 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 2060 MPa
299000 psi
Tensile Strength, Yield 1965 MPa

@Strain 0.200 %
285000 psi

@Strain 0.200 %
Elongation at Break 7.8 %
7.8 %
Reduction of Area 38 %
38 %
Fracture Toughness >= 66.0 MPa-m½
>= 60.1 ksi-in½
Thermal Properties Metric English Comments
CTE, linear 10.8 µm/m-°C

@Temperature 23.0 - 482 °C
6.00 µin/in-°F

@Temperature 73.4 - 900 °F
Component Elements Properties Metric English Comments
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 1.8 %
1.8 %
Silicon, Si 0.10 %
0.10 %
Titanium, Ti 0.64 %
0.64 %
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