PROPRIETARY Uddeholm Vidar 1 Tool steels

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

Data updates

Latest Update: 2019-03
Total number of updates: 2
Update History
2016-04

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PROPRIETARY Uddeholm Vidar 1 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.38
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
5.0
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.4
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

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PROPRIETARY Uddeholm Vidar 1 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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PROPRIETARY Uddeholm Vidar 1 Heat Treatments

  • Soft annealing:
    Protect the steel and heat through to 850°C (1562°F). Then cool in furnace at 10°C (20°F) per hour to 650°C (1202°F), then freely in air.
    Stress relieving:
    After rough machining the tool should be heated through to 650°C (1202°F), holding time 2 hours. Cool slowly to 500°C (932°F), then freely in air.
    Hardening:
    Preheating temperature: 600–850°C (1112–1562°F) (normally two preheating steps). Austenitizing temperature: 990–1010°C (1814–1850°F), normally 990–1000°C (1814–1832°F). Soaking time: 30–45 minutes. Protect the tool against decarburization and oxidation during austenitizing.
    Quenching media:
    High speed gas/circulating atmosphere, vacuum (high speed gas with sufficient positive pressure), martempering bath (salt or fluidized bed) at 500–550°C (932–1022°F), martempering bath (salt or fluidized bed) at 180–220°C (356–428°F), warm oil. Temper the tool as soon as its temperature reaches 50–70°C (122–158°F). In order to obtain the optimum properties for the tool, the cooling rate should be fast, but not at a level that gives excessive distortion or cracks.
    Tempering:
    Temperature should be choosen according to the hardness required. Temper twice with intermediate cooling to room temperature. Lowest tempering temperature 180°C (356°F). Holding time at temperature minimum 2 hours. Tempering in the range of 425–550°C (797–1022°F) for the intended final hardness will result in a lower toughness.
    Nitriding and nitrocarburizing:
    Before nitriding, the tool should be hardened and tempered at a temperature at least 50°C (120°F) above the nitriding temperature. Gas nitriding at 510°C (950°F) for 10 h and depth of 0.12 mm or 30 h and depth of 0.20 mm. Plasma nitriding at 480°C (895°F) for 10 h and depth of 0.14 mm or 30 h and depth of 0.19 mm. Nitrocarburizing in gas at 580°C (1075°F) for 2.5 h and depth of 0.12 mm or in salth bath at 580°C (1075°F) for 1 h and depth of 0.07 mm.

PROPRIETARY Uddeholm Vidar 1 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
1400 — 1620 MPa
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Brinell Hardness (HB)
val1
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Yield Strength, Rp0.2
val1
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MPa
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Rockwell Hardness (HR)
val1
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PROPRIETARY Uddeholm Vidar 1 International Equivalent Materials

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MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
Uddeholm Vidar 1 ESR
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Composition 100%

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  • 8Cross References
  • 6Composition
  • 22Mechanical Properties
  • 3Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • 2Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 4Total Suppliers