GB Q245 Structural and constructional steels

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

Data updates

Latest Update: 2017-01
Total number of updates: 1
Update History

This material has 8628 properties — only a subset is shown here.

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GB Q245 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≥ 0.02
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.30
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cr+Cu+Mo+Ni
VALUE
val1
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UNIT
%
CAS NUMBER
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
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

GB/T 32970: 2016 / Longitudinal submerged-arc welded steel pipe for high pressure service at high temperatures

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GB Q245 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 8628 properties — only a subset is shown here.

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GB Q245 Heat Treatments

  • Elimination force processing temperature range: 590 - 650°C; Normalizing at 880 - 940°C;

GB Q245 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
390 — 520 MPa
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Elongation, A
≥ 25 %
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Yield Strength, Rp0.2
≥ 205 MPa
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Impact Energy
val1
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J
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  • 1Cross References
  • 14Composition
  • 31Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • 83Joints
  • -Coatings
  • 3Dimensions
  • 1Tribology
  • 8491Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers