PROPRIETARY Maraging Steel MS1 Tool steels

Material group: Ferrous Alloys / Tool steels
Country / Standard: PROPRIETARY

Data updates

Latest Update: 2026-02
Total number of updates: 9
Update History

This material has 177 properties — only a subset is shown here.

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PROPRIETARY Maraging Steel MS1 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.05 – 0.15
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
Co
VALUE
8.50 – 9.50
UNIT
%
CAS NUMBER
7440-48-4
CRITERIA
Fe
VALUE
Balance
UNIT
%
CAS NUMBER
7439-89-6
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
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6

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PROPRIETARY Maraging Steel MS1 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
180 — 200 GPa
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Density
≥ 7.9 kg/dm³
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Bulk Density
val1
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kg/dm³
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Melting Temperature
1371 — 1399 °C
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This material has 177 properties — only a subset is shown here.

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PROPRIETARY Maraging Steel MS1 Heat Treatments


  • Solution annealing: 2 h at 940 °C (±10 °C) measured from the part followed by rapid air cooling to room temperature (below 32 °C). Cooling rate 5-60 °C/min..
    Ageing: For peak hardness of 54 HRC age 6 h at 490 °C (±10 °C) measured from the part followed by air cooling.
  • Heat treated at 491°C (915ºF) for 6 hours or 1100ºF for 6 hours. Heat treated at 593°C (1100ºF) for 6 hours.

PROPRIETARY Maraging Steel MS1 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
646 — 2120 MPa
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Elongation, A
2 — 60 %
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Grain Size
val1
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mm
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Rockwell Hardness (HR)
val1
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Vickers Hardness (HV)
val1
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Yield Strength, Rp0.2
609 — 2040 MPa
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PROPRIETARY Maraging Steel MS1 International Equivalent Materials


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Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 23Cross References

  • 24Composition
  • 80Mechanical Properties
  • 14Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability

  • 4Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • -Dimensions
  • 1Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • 29Total Suppliers