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C81U

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C80U C90U
#C81U

Description

Spain UNE C81U Spain structural alloy steel and C81U Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: C81U
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy C81U UNE Spain Spain structural alloy steel
RU12
RU11v
RU12v
RU13v
55SiMoX
C51U
C61U
C70U
C71U
C80U

Chemical composition(mass fraction)(wt.%) of the C81U

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％)
0.75-0.84 0.15-0.35 0.60-0.80 0.025 0.020 Max 0.25 Max 0.25

Mechanical Properties of steel grade C81U

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)
293 (≥) 775 (≥) 23 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade C81U

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 - -     0.22 -  
938 747 - 11.3 234   -  
142 - 31 22.2   422 344

Heat Treatment of steel grade C81U

Heat treated : 1365°C - 1478°C

Technological Curves of steel grade C81U

Cross Reference Table (Equivalent Grade) of C81U

Grade Standard Country Application
C81U UNE Spain Spain structural alloy steel
C80U C90U
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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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