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C51U

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55SiMoX C61U
#C51U

Description

Spain UNE C51U Spain structural alloy steel and C51U Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: C51U
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy C51U UNE Spain Spain structural alloy steel
Rp5
Rp9
Rp10
Rp11
RUL1
RU12
RU11v
RU12v
RU13v
55SiMoX

Chemical composition(mass fraction)(wt.%) of the C51U

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％)
0.45-0.54 0.15-0.35 0.60-0.80 0.025 0.02 Max 0.25 Max 0.25

Mechanical Properties of steel grade C51U

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)
672 (≥) 493 (≥) 13 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade C51U

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
31 - -     0.43 -  
311 874 - 11.3 321   -  
267 - 21 31.2   441 323

Heat Treatment of steel grade C51U

Heat treated : 1552°C - 1214°C

Technological Curves of steel grade C51U

Cross Reference Table (Equivalent Grade) of C51U

Grade Standard Country Application
C51U UNE Spain Spain structural alloy steel
55SiMoX C61U
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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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