DIN 55NiCrMoV7 Tool steels

Material group: Ferrous Alloys / Tool steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2023-10
Total number of updates: 2
Update History
2017-08

This material has 281 properties — only a subset is shown here.

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DIN 55NiCrMoV7 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.50 – 0.60
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.80 – 1.20
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.60 – 0.90
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
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
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

EN ISO 4957: 2018 / Tool steels

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DIN 55NiCrMoV7 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Shear Modulus
val1
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GPa
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Density
val1
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kg/dm³
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Poisson Coefficient
val1
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Thermal Conductivity
25.5 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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Electrical Resistivity
0.3 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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This material has 281 properties — only a subset is shown here.

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DIN 55NiCrMoV7 Heat Treatments

  • Austenitized at 850 +/- 10°C and oil quenched (usual quenching media for tools are air, gas or salt bath).
    Tempered at 500 +/- 10°C.

DIN 55NiCrMoV7 Mechanical Properties

Temperature

PROPERTY / VALUE
Impact Strength
245 kJ/m²
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Brinell Hardness (HB)
≤ 380
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Rockwell Hardness (HR)
42
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  • 102 Cross References
  • 9 Composition
  • 17 Mechanical Properties
  • 33 Physical Properties
  • 14 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • 6 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
  • 100 Total Suppliers