SEW 55 NiCrMoV 6 Tool steels

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

Data updates

Latest Update: 2019-05
Total number of updates: 1
Update History

This material has 150 properties — only a subset is shown here.

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SEW 55 NiCrMoV 6 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.55
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.7
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.6
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
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

SEW 250: 1970 / Hot work tool steels

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SEW 55 NiCrMoV 6 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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SEW 55 NiCrMoV 6 Heat Treatments


  • Soft annealing: Slowly heated at 650-700°C, held for several hours, slowly cooled, preferably in the furnace.
    The soft annealing is most appropriate for machining and cold working and provides the most favorable initial structure for tool hardening.

    Hardening: Heated at 830-870°C, held for 15-30 minutes, oil quenched.

    Stress relief annealing: Slowly heated 650°C, held for 1-2 hours, slowly cooled in the furnace.

    Steel is nitrided in salt baths, gas or powder. The nitriding layer thickness may be 0.01-0.3 mm depending on necessity and method and is usually 0.1 mm.

SEW 55 NiCrMoV 6 Mechanical Properties


Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 240
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SEW 55 NiCrMoV 6 International Equivalent Materials


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  • 70Cross References

  • 7Composition
  • 1Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

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

  • 8Joints
  • -Coatings
  • 3Dimensions
  • -Tribology

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

  • 56Total Suppliers