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55Si7

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1.5025 1.5026
#55Si7

Description

55Si7 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 55Si7
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel 55Si7
Ck101
1.1274
38Si6
1.5022
38Si7
1.5023
46Si7
1.5024
51Si7
1.5025

Chemical composition(mass fraction)(wt.%) of the 55Si7

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
0.52-0.60  1.60-2.00  0.60-0.90  0.025  0.025  ≤ 0.40 ≤ 0.40
Mo Al Cu Nb Ti V Ce
≤ 0.10            
N Co Pb B Other    
        Cu+10Sn+-0.60     
             

Mechanical Properties of steel grade 55Si7

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)
994 (≥) 252 (≥) 13 11 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade 55Si7

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 - -     0.24 -  
748 685 - 24.3 322   -  
563 - 12 32.2   324 331

Heat Treatment of steel grade 55Si7

Heat treated : 1873°C - 1113°C

Technological Curves of steel grade 55Si7

Cross Reference Table (Equivalent Grade) of 55Si7

Grade Standard Country Application
EN 55Si7 EN Euronorm Structural steel
1.5025 1.5026
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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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