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Description

China GBT Q215 China structural steel and alloy steel and Q215 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: Q215
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel Q215 GBT China China structural steel and alloy steel
100QT
44W
50W
55W
50WT
55WT
50A
50AT
Q195
Q215

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

C(%) Si(%) Mn(%) P(%) S(%)
0.09-0.15 Max 0.30 0.25-0.55 0.045 0.045

Mechanical Properties of steel grade Q215

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)
129 (≥) 885 (≥) 11 23 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade Q215

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
42 - -     0.21 -  
918 529 - 31.3 142   -  
778 - 33 14.2   223 121

Heat Treatment of steel grade Q215

Heat treated : 1896°C - 1873°C

Technological Curves of steel grade Q215

Cross Reference Table (Equivalent Grade) of Q215

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

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