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Q235q

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Q235q Q345q
#Q235q

Description

China GBT Q235q China structural steel and alloy steel and Q235q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: Q235q
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel Q235q GBT China China structural steel and alloy steel
Q215
Q215
Q235
Q235
Q235
Q235
Q255
Q255
Q275
Q235q

Chemical composition(mass fraction)(wt.%) of the Q235q

C(％) Si(％) Mn(％) P(％) S(％)
Max 0.18 Max 0.30 0.50-0.80 0.025 0.025

Mechanical Properties of steel grade Q235q

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)
744 (≥) 364 (≥) 24 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade Q235q

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
12 - -     0.14 -  
199 957 - 23.3 241   -  
225 - 21 33.2   231 112

Heat Treatment of steel grade Q235q

Heat treated : 1632°C - 1624°C

Technological Curves of steel grade Q235q

Cross Reference Table (Equivalent Grade) of Q235q

Grade Standard Country Application
Q235q C China Bridge structure with steel
Q235q D China Bridge structure with steel
Q235q GBT China China structural steel and alloy steel
Q235q GBT China China structural steel and alloy steel
Q235q Q345q
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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