GB U20202 Structural and constructional steels

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

Data updates

Latest Update: 2026-03
Total number of updates: 11
Update History

This material has 10152 properties — only a subset is shown here.

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GB U20202 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.17 – 0.24
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.25
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.25
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
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

GB/T 3275: 1991 / Hot-rolled quality carbon structural steel plates and strips for automobile

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GB U20202 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
val1
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GPa
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Shear Modulus
val1
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GPa
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Density
val1
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kg/dm³
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Poisson Coefficient
val1
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Electrical Resistivity
0.12 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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Melting Temperature
val1
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°C
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This material has 10152 properties — only a subset is shown here.

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GB U20202 Heat Treatments

  • Normalized: 880°C to 940°C
  • Normalized: 880°C to 940°C

GB U20202 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
val1
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MPa
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Elongation, A
val1
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%
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Reduction of Area
val1
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%
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Impact Energy
val1
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J
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Brinell Hardness (HB)
103 — 229
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  • 585 Cross References
  • 109 Composition
  • 165 Mechanical Properties
  • 78 Physical Properties
  • 4 Heat Treatment
  • 51 Metallography
  • - Machinability
  • 24 Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • 62 Creep
  • 83 Joints
  • - Coatings
  • 29 Dimensions
  • 1 Tribology
  • 8491 Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
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