DIN 7CrWVMoNb9-6 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2025-02
Total number of updates: 2
Update History
2020-03

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DIN 7CrWVMoNb9-6 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.030
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
0.0010 – 0.006
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.04 – 0.10
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
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

EN 10216-2: 2024 / Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties

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DIN 7CrWVMoNb9-6 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 181 properties — only a subset is shown here.

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DIN 7CrWVMoNb9-6 Heat Treatments

  • Normalizing and tempering (+NT): 1040-1080°C, air cooling. Tempering: 730-780°C, air cooling. It may be necessary in the case of wall thickness T above 16 mm or T/D > 0.15 to apply quenching and tempering in order to achieve the intended structure and material properties.

DIN 7CrWVMoNb9-6 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
400 MPa
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Tensile Strength
510 — 740 MPa
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Elongation, A
18 %
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Impact Energy
val1
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J
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  • 44 Cross References
  • 14 Composition
  • 19 Mechanical Properties
  • 3 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • 1 Creep
  • 3 Joints
  • - Coatings
  • 56 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
  • 40 Total Suppliers