PROPRIETARY MARVAC 250 VIM-VAR Structural and constructional steels
Material group:
Ferrous Alloys / Structural and constructional steels
Country / Standard:
PROPRIETARY
Data updates
Latest Update: 2022-11
Total number of updates: 2
Update History
2014-12
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PROPRIETARY MARVAC 250 VIM-VAR Chemical Composition
CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.1000
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.0100
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Co
VALUE
≤ 7.7500
UNIT
%
CAS NUMBER
7440-48-4
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
Timken Steel Corporation, Product Data Sheets,
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PROPRIETARY MARVAC 250 VIM-VAR Physical Properties
Temperature
Modulus of Elasticity
186 — 210
GPa
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Density
7.67 — 8
kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 74 properties — only a subset is shown here.
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PROPRIETARY MARVAC 250 VIM-VAR Heat Treatments
- Maraging Cycle: Hold 3-6 hours at 900°F (482°C), then air cool. Resulting hardness is approximately 50 HRC. Size change during maraging in most cases is negligible; slight shrinkage on the order of 0.0005" per inch can be expected.
Solution Treatment: Hold one hour per inch of thickness at 1500°F (816°C), then air cool. Resulting hardness is approximately 30 HRC. A protective atmosphere is not required, but precautions should be taken to avoid carburization.
Stress Relieving: To eliminate excessive stresses caused by machining or cold working, a solution treatment at 1500°F (816°C) should be performed.
PROPRIETARY MARVAC 250 VIM-VAR Mechanical Properties
Temperature
Tensile Strength
1793 — 1840
MPa
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Elongation, A
10.2 — 12.2
%
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Yield Strength, Rp0.2
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Reduction of Area
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- 2Cross References
- 16Composition
- 38Mechanical Properties
- 9Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- 5Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 3Total Suppliers