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65Si7

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2.4955 1.5028
#65Si7

Description

Germany DIN 65Si7 Valve steel and 65Si7 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 65Si7
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 65Si7 DIN Germany Valve steel
1.4873
X45CrNiW18-9
X55CrMnNiN20-8
1.4875
1.4881
X70CrMnNiN21-6
1.4882
X50CrMnNiNbN21-9
NiFe25Cr20NbTi
2.4955

Chemical composition(mass fraction)(wt.%) of the 65Si7

C(％) Si(％) Mn(％) P(％) S(％)
0.60-0.70 1.50-1.80 0.70-1.00 Max 0.035 Max 0.035

Mechanical Properties of steel grade 65Si7

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)
567 (≥) 384 (≥) 42 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 65Si7

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
34 - -     0.12 -  
965 749 - 42.3 321   -  
418 - 22 11.2   133 341

Heat Treatment of steel grade 65Si7

Heat treated : 1775°C - 1532°C

Technological Curves of steel grade 65Si7

Cross Reference Table (Equivalent Grade) of 65Si7

Grade Standard Country Application
65Si7 DIN Germany Valve steel
2.4955 1.5028
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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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