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U20802

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U20752 U20852
#U20802

Description

China GBT U20802 China structural steel and alloy steel and U20802 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: U20802
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel U20802 GBT China China structural steel and alloy steel
U20302
U20352
U20402
U20452
U20502
U20552
U20602
U20652
U20702
U20752

Chemical composition(mass fraction)(wt.%) of the U20802

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.77-0.85 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.3 0.25

Mechanical Properties of steel grade U20802

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)
337 (≥) 979 (≥) 42 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade U20802

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 - -     0.44 -  
223 271 - 22.3 111   -  
211 - 13 21.2   221 311

Heat Treatment of steel grade U20802

Heat treated : 1484°C - 1541°C

Technological Curves of steel grade U20802

Cross Reference Table (Equivalent Grade) of U20802

Grade Standard Country Application
U20802 GBT China China structural steel and alloy steel
U20752 U20852
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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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