PROPRIETARY 31CrMoV9 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: PROPRIETARY
Indicative price:

Data updates

Latest Update: 2026-05
Total number of updates: 4
Update History
2020-06 2019-01 2017-04

This material has 238 properties — only a subset is shown here.

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PROPRIETARY 31CrMoV9 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.2700 – 0.3400
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
2.3000 – 2.7000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.4000 – 0.7000
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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

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PROPRIETARY 31CrMoV9 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
80 — 210 GPa
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Thermal Conductivity
val1
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W/(m∙°C)
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Electrical Resistivity
val1
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Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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Heat Capacity
val1
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J/(kg∙°C)
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Poisson Coefficient
val1
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This material has 238 properties — only a subset is shown here.

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PROPRIETARY 31CrMoV9 Heat Treatments

  • Hot-forming: 1050 - 850°C. Stress-relieving after machining: 550 - 580°C, air cooling. Quenching (+Q): 850 - 880°C, polymer cooling. Quenching (Q+): 840 - 870°C, water cooling. Tempering (+T): 580 - 700°C, air cooling. Final stress-relieving (+SR): 50°C under the temperature of tempering. Soft annealing (+A): 680 - 720°C, air cooling. Nitrocarburizing: 570 - 580°C. Nitriding: 500 - 520°C. Mechanical properties at different tempering temperatures obtained after quenching at 880°C in oil.
  • Hot forgings deformation: 850-1150°C
    Nitriding: 480-570°C
    Soft annealing: 680-720°C
    Quenching in water or oil: 870-930°C
    Tempering: 580-700°C

PROPRIETARY 31CrMoV9 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
800 — 1800 MPa
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Brinell Hardness (HB)
53 — 486
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Elongation, A
≥ 9 %
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Reduction of Area
val1
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%
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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PROPRIETARY 31CrMoV9 International Equivalent Materials

Showing 15 of 62 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
1.8519
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
1.8519
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
1.8519
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
1.8519
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
1.8519
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
1.8519
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
MSZ
COUNTRY / PRODUCER
Hungary
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
1.8519
STANDARD
MSZ
COUNTRY / PRODUCER
Hungary
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
31 CrMoV 9
STANDARD
NBN
COUNTRY / PRODUCER
Belgium
EQUIVALENCE CATEGORY
Composition 100%

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

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  • 62Cross References
  • 24Composition
  • 73Mechanical Properties
  • 24Physical Properties
  • 5Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 50Total Suppliers