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Q275

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Q255 Q235q
#Q275

Description

China GBT Q275 China structural steel and alloy steel and Q275 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: Q275
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel Q275 GBT China China structural steel and alloy steel
50AT
Q195
Q215
Q215
Q235
Q235
Q235
Q235
Q255
Q255

Chemical composition(mass fraction)(wt.%) of the Q275

C(％) Si(％) Mn(％) P(％) S(％)
0.28-0.38 Max 0.35 0.50-0.80 0.045 0.05

Mechanical Properties of steel grade Q275

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)
657 (≥) 416 (≥) 21 42 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade Q275

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
43 - -     0.31 -  
996 545 - 41.3 142   -  
835 - 42 22.2   422 414

Heat Treatment of steel grade Q275

Heat treated : 1252°C - 1549°C

Technological Curves of steel grade Q275

Cross Reference Table (Equivalent Grade) of Q275

Grade Standard Country Application
Q275 China Engineering and welding
Q275 GBT China China structural steel and alloy steel
Q255 Q235q
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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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