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U20080

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70Mn U20100
#U20080

Description

China GBT U20080 China structural steel and alloy steel and U20080 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: U20080
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel U20080 GBT China China structural steel and alloy steel
20Mn
25Mn
30Mn
35Mn
40Mn
45Mn
50Mn
60Mn
65Mn
70Mn

Chemical composition(mass fraction)(wt.%) of the U20080

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.05-0.11 Max 0.03 0.25-0.50 0.035 0.035 0.1 0.3 0.25

Mechanical Properties of steel grade U20080

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)
855 (≥) 798 (≥) 42 21 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade U20080

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
14 - -     0.13 -  
725 729 - 23.3 223   -  
358 - 14 32.2   123 342

Heat Treatment of steel grade U20080

Heat treated : 1439°C - 1591°C

Technological Curves of steel grade U20080

Cross Reference Table (Equivalent Grade) of U20080

Grade Standard Country Application
U20080 GBT China China structural steel and alloy steel
70Mn U20100
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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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