VdTÜV 1.25Cr-0.4Mo-Nb-V Structural and constructional steels

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

Data updates

Latest Update: 2026-02
Total number of updates: 2
Update History
2018-10

This material has 53 properties — only a subset is shown here.

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VdTÜV 1.25Cr-0.4Mo-Nb-V Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.003
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
0.001 – 0.006
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.04 – 0.12
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
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
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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

WB 576: 2025 / Heat-resistant steel HCMA (1.25Cr-0.4Mo-Nb-V); Seamless tube

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VdTÜV 1.25Cr-0.4Mo-Nb-V 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 53 properties — only a subset is shown here.

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VdTÜV 1.25Cr-0.4Mo-Nb-V Heat Treatments

  • Hardened at 950-1000°C, air cooled
    Tempered at 680-750°C, held 2 min per mm thickness, at least 60 min, air cooled
    Stress relief annealing after cold forming at 680-750°C, held 2 min per mm thickness, at least 60 min, air cooled.

VdTÜV 1.25Cr-0.4Mo-Nb-V Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
570 — 720 MPa
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Elongation, A
val1
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%
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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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Vickers Hardness (HV)
val1
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  • -Cross References
  • 13Composition
  • 25Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 1Creep
  • -Joints
  • -Coatings
  • 10Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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