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U21702

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U21652 YF35V
#U21702

Description

China GBT U21702 China structural steel and alloy steel and U21702 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: U21702
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel U21702 GBT China China structural steel and alloy steel
U21152
U21202
U21252
U21302
U21352
U21402
U21452
U21502
U21602
U21652

Chemical composition(mass fraction)(wt.%) of the U21702

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.67-0.75 0.17-0.37 0.90-1.20 0.035 0.035 0.25 0.3 0.25

Mechanical Properties of steel grade U21702

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)
486 (≥) 833 (≥) 11 23 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade U21702

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
44 - -     0.32 -  
263 879 - 23.3 214   -  
235 - 14 34.2   113 313

Heat Treatment of steel grade U21702

Heat treated : 1862°C - 1434°C

Technological Curves of steel grade U21702

Cross Reference Table (Equivalent Grade) of U21702

Grade Standard Country Application
U21702 GBT China China structural steel and alloy steel
U21652 YF35V
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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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