Q215 B

China Q215 B Engineering and welding and Q215 B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel Q215 B China Engineering and welding
Q195
Q215
SBB 450M/SBB 46M
SBB 480/SBB 49
SBB 480M/SBB 49M
STHA 12
STHA 13
STHA 20
STHA 22
STHA 23
Datasheet for:Steel Grades:Structure Steel:Q215 B

Chemical composition(mass fraction)(wt.%) of the Q215 B

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.09~0.15 ≤0.30 0.25~0.55 ≤0.045 ≤0.045 ≤0.30 ≤0.30 ≤0.30

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade Q215 B

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
625 (≥) 921 (≥) 32 12 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
33 - -     0.42 -  
937 575 - 12.3 411   -  
515 - 14 42.2   432 424
Heat treated : 1985°C - 1692°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
Q215 China
Engineering and welding
Q215 B China
Engineering and welding
Q215 GBT China
China structural steel and alloy steel
Q215 GBT China
China structural steel and alloy steel
Q195 GBT China
Engineering and welding
Q235 China
Engineering and welding
Q235 B China
Engineering and welding
Q235 C China
Engineering and welding
Q235 D China
Engineering and welding
Q255 A China
Engineering and welding
Q255 B China
Engineering and welding
Q275 China
Engineering and welding
Q235q C China
Bridge structure with steel
Q235q D China
Bridge structure with steel
Q345q E China
Bridge structure with steel
Q345q C China
Bridge structure with steel
ASTM 1030 ASTM USA
General use carbon steel bar
UNS G10300 UNS USA
General use carbon steel bar
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