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Description

China GBT U20100 China structural steel and alloy steel and U20100 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: U20100
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel U20100 GBT China China structural steel and alloy steel
25Mn
30Mn
35Mn
40Mn
45Mn
50Mn
60Mn
65Mn
70Mn
U20080

Chemical composition(mass fraction)(wt.%) of the U20100

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.07-0.13 Max 0.07 0.25-0.50 0.035 0.035 0.15 0.3 0.25

Mechanical Properties of steel grade U20100

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)
929 (≥) 611 (≥) 31 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade U20100

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
32 - -     0.44 -  
637 432 - 12.3 343   -  
274 - 23 34.2   113 421

Heat Treatment of steel grade U20100

Heat treated : 1152°C - 1117°C

Technological Curves of steel grade U20100

Cross Reference Table (Equivalent Grade) of U20100

Grade Standard Country Application
U20100 GBT China China structural steel and alloy steel

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