PROPRIETARY SRV4 ULTR-AD Tool steels

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

Data updates

Latest Update: 2021-03
Total number of updates: 1
Update History

This material has 14 properties — only a subset is shown here.

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PROPRIETARY SRV4 ULTR-AD Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
7.80
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mo
VALUE
3.25
UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

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PROPRIETARY SRV4 ULTR-AD Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.72 — 8 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 14 properties — only a subset is shown here.

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PROPRIETARY SRV4 ULTR-AD Heat Treatments

  • Annealed: Gradual heating up to 860°C, holding at temperature followed by slow cooling. Take the usual precautions to avoid decarburization.
    Heat treatment 1: Austenitization at 1175°C; Cooling in gas under pressure (minimum of 3 bars) or in salt bath at 500-550°C depending on the section and the geometry of the parts. Tempering: Three successive tempering of 2 hours at 520°C.
    For parts requiring very high dimensional stability, a cryogenic treatment of 2 hours at -75°C can be inserted between quenching and first tempering. If the parts are complex form this treatment should be carried out between the first and the second tempering.
    Heat treatment 2: Austenitization at 1075°C; Cooling in gas under pressure (minimum of 3 bars) or in salt bath at 500-550°C depending on the section and the geometry of the parts. Tempering: Three successive tempering of 2 hours at 550°C.

PROPRIETARY SRV4 ULTR-AD Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
280
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Rockwell Hardness (HR)
60 — 63.5
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  • -Cross References
  • 5Composition
  • 3Mechanical Properties
  • 3Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers