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U20702

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U20652 U20752
#U20702

Description

China GBT U20702 China structural steel and alloy steel and U20702 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: U20702
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel U20702 GBT China China structural steel and alloy steel
U20202
U20252
U20302
U20352
U20402
U20452
U20502
U20552
U20602
U20652

Chemical composition(mass fraction)(wt.%) of the U20702

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.67-0.75 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.3 0.25

Mechanical Properties of steel grade U20702

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)
346 (≥) 373 (≥) 13 43 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade U20702

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 - -     0.32 -  
846 688 - 41.3 123   -  
228 - 13 21.2   433 331

Heat Treatment of steel grade U20702

Heat treated : 1489°C - 1337°C

Technological Curves of steel grade U20702

Cross Reference Table (Equivalent Grade) of U20702

Grade Standard Country Application
U20702 GBT China China structural steel and alloy steel
U20652 U20752
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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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