VdTÜV 27 CrMo 4 Structural and constructional steels

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

Data updates

Latest Update: 2015-01
Total number of updates: 1
Update History

This material has 22 properties — only a subset is shown here.

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VdTÜV 27 CrMo 4 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.25 – 0.30
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.90 – 1.10
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.70 – 0.90
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
P+S
VALUE
val1
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UNIT
%
CAS NUMBER
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

WB 228: 2001 / Rolled and forged steel 27 CrMo 4 I, II, III

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VdTÜV 27 CrMo 4 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 22 properties — only a subset is shown here.

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VdTÜV 27 CrMo 4 Heat Treatments

  • Heat treatment A: Hardening at 830 to 880°C for 3 min/mm plate thicknesses, at least 30 minutes and cooling in oil for wall thickness <= 10 mm; Tempering at 560 to 620°C for 5 min/mm plate thicknesses, at least 30 minutes and cooling in air; Heat treatment B: Hardening at 830 to 880°C for 3 min/mm plate thicknesses, at least 30 minutes and cooling in water oil mixture for wall thickness > 10 mm; Tempering at 580 to 630°C for 5 min/mm plate thicknesses, at least 30 minutes and cooling in air.

VdTÜV 27 CrMo 4 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
665 MPa
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Tensile Strength
780 — 1030 MPa
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Elongation, A
16 %
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  • - Cross References
  • 8 Composition
  • 10 Mechanical Properties
  • 3 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • - Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
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