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U40302

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U40252 U40352
#U40302

Description

China GBT U40302 China structural steel and alloy steel and U40302 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: U40302
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel U40302 GBT China China structural steel and alloy steel
U40088
U40108
U40158
U40152
U40208
U40202
U41188
U41228
A20204
U40252

Chemical composition(mass fraction)(wt.%) of the U40302

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.27-0.34 Max 0.20 0.30-0.60 0.035 0.035 — — —

Mechanical Properties of steel grade U40302

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)
718 (≥) 588 (≥) 43 23 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade U40302

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
21 - -     0.43 -  
218 827 - 42.3 333   -  
486 - 31 21.2   224 433

Heat Treatment of steel grade U40302

Heat treated : 1421°C - 1635°C

Technological Curves of steel grade U40302

Cross Reference Table (Equivalent Grade) of U40302

Grade Standard Country Application
U40302 GBT China China structural steel and alloy steel
U40252 U40352
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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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