GB 08Cr2AlMo Structural and constructional steels

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

Data updates

Latest Update: 2026-05
Total number of updates: 5
Update History
2026-02 2026-01 2025-09 2016-09

This material has 90 properties — only a subset is shown here.

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GB 08Cr2AlMo Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.30 – 0.70
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.0500 – 0.1000
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
2.0000 – 2.5000
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
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

GB/T 150.2: 2011 / Pressure vessels - Part 2: Materials

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GB 08Cr2AlMo 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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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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This material has 90 properties — only a subset is shown here.

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GB 08Cr2AlMo Heat Treatments

  • The steel pipes are delivered in a normalized and tempered heat-treated condition, with a tempering temperature of not less than 680°C.

GB 08Cr2AlMo Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
400 — 540 MPa
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Elongation, A
≥ 25 %
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Yield Strength, Rp0.2
≥ 250 MPa
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  • -Cross References
  • 16Composition
  • 24Mechanical Properties
  • 18Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 6Creep
  • -Joints
  • -Coatings
  • 25Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers