GB Q235B Structural and constructional steels
Material group:
Ferrous Alloys / Structural and constructional steels
Country/Standard:
China / GB
Data updates
Latest Update: 2026-01
Total number of updates: 15
Update History
2025-12
2025-08
2025-07
2022-08
2019-05
2019-04
2018-07
2018-06
2018-02
2017-01
2016-12
2016-07
2015-07
2015-06
This material has 10663 properties — only a subset is shown here.
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GB Q235B Chemical Composition
CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
≤ 1.40
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Ni
VALUE
≤ 0.30
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 700: 2006 / Carbon structural steels
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GB Q235B Physical Properties
Temperature
Modulus of Elasticity
190 — 210
GPa
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Shear Modulus
79
GPa
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Density
7.67 — 7.86
kg/dm³
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Bulk Density
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Poisson Coefficient
val1
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Coefficient of Thermal Expansion (CTE)
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This material has 10663 properties — only a subset is shown here.
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GB Q235B Mechanical Properties
Temperature
Yield Strength, Rp0.2
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Tensile Strength
315 — 560
MPa
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Elongation, A
6
%
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Shear Strength
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Compression Strength
320
MPa
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Impact Energy
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1041 Cross References
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60 Composition
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136 Mechanical Properties
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8 Physical Properties
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- Heat Treatment
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- Metallography
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- Machinability
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27 Stress-Strain
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2 Formability
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- Fatigue
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- Fracture
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- Creep
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83 Joints
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- Coatings
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32 Dimensions
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1 Tribology
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8491 Corrosion
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- Ageing
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- Weatherability
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- Irradiation
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782 Total Suppliers