PROPRIETARY VWM7 Tool steels

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

Data updates

Latest Update: 2022-01
Total number of updates: 1
Update History

This material has 131 properties — only a subset is shown here.

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PROPRIETARY VWM7 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.00
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
3.80
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mo
VALUE
8.70
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 VWM7 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 131 properties — only a subset is shown here.

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PROPRIETARY VWM7 Heat Treatments


  • Annealing: Soft annealing may be carried out by heating between 850 and 880°C for 2 hours, followed by slow cooling at 10/20°C per hour until 650°C and, then, by air cooling. In this treatment, the use of protective atmosphere is important to avoid surface decarburization.

    Stress relieving: The indicated procedure is heating between 600 and 700°C and holding until complete homogenization, followed by slow cooling (air or furnace) at least down to 500°C.

    Hardening and Tempering: Hardening (1190-1220°C) and Tempering (560°C). Hardening procedure must involve one pre-heating at 400/500°C followed by other at 860/880°C. After pre-heating, austenitizing temperature may be conducted, followed by quenching down to room temperature. A protective atmosphere is absolutely necessary. Double tempering treatments, of at least 2h, are required and after each one tools must cool down to room temperature.

    Surface treatments: If nitriding is applied, the treatment temperature should be lower than the tempering temperature, to avoid decrease of core hardness. It is important that, before all surface treatments, tools have clean surface (without oil or grease) and are free from grinding overheating.

PROPRIETARY VWM7 Mechanical Properties


Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 300
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PROPRIETARY VWM7 International Equivalent Materials


Showing 13 of 60 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
EU
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
IS
COUNTRY / PRODUCER
India
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit

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

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  • 60Cross References

  • 5Composition
  • 3Mechanical Properties
  • 8Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability

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

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

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

  • 53Total Suppliers