YB 12Cr2Mo Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: China / YB

Data updates

Latest Update: 2021-06
Total number of updates: 2
Update History
2016-11

This material has 31 properties — only a subset is shown here.

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YB 12Cr2Mo Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.08 – 0.15
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
2.00 – 2.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.20
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
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

YB/T 4331: 2013 / Large diameter alloy structural seamless steel pipes for liquid service

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YB 12Cr2Mo 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 31 properties — only a subset is shown here.

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YB 12Cr2Mo Heat Treatments


  • For S<=30mm (S-wall thickness of steel pipe): Normalized at 900 to 960°C and tempered at 700 to750°C.
    For S>30mm (S-wall thickness of steel pipe): Heated not lower than 900°C, tempered at 700 to 750°C and normalized at 900 to 960°C (but quenched after normalizing).

YB 12Cr2Mo Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
450 — 600 MPa
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Brinell Hardness (HB)
≤ 163
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Elongation, A
≥ 22 %
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Impact Energy
val1
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J
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Yield Strength, Rp0.2
val1
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MPa
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  • 9Cross References

  • 9Composition
  • 5Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

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

  • -Joints
  • -Coatings
  • 4Dimensions
  • -Tribology

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

  • -Total Suppliers