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U40208

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U40152 U40202
#U40208

Description

China GBT U40208 China structural steel and alloy steel and U40208 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: U40208
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel U40208 GBT China China structural steel and alloy steel
ML35MnB
ML37CrB
ML20MnTiB
ML15MnVB
ML20MnVB
U40048
U40088
U40108
U40158
U40152

Chemical composition(mass fraction)(wt.%) of the U40208

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.18-0.23 Max 0.10 0.30-0.60 0.035 0.035 — — 0.02

Mechanical Properties of steel grade U40208

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)
737 (≥) 674 (≥) 23 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade U40208

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 - -     0.14 -  
942 528 - 31.3 233   -  
333 - 33 24.2   114 132

Heat Treatment of steel grade U40208

Heat treated : 1678°C - 1513°C

Technological Curves of steel grade U40208

Cross Reference Table (Equivalent Grade) of U40208

Grade Standard Country Application
U40208 GBT China China structural steel and alloy steel
U40152 U40202
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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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