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EN 55Si7

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EN 55Cr3 EN 60Si7
#55Si7

Description

Euronorm EN EN 55Si7 Euronorm Structural steel and EN 55Si7 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: EN 55Si7
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel EN 55Si7 EN Euronorm Euronorm Structural steel
EN P620QL1
EN P690Q
EN P690QH
EN P690QL1
EN 45Si7
EN 45SiCrMo6
EN 50C rV4
EN 50SL7
EN 51CrMoV4
EN 55Cr3

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

C(％) Si(％) Mn(％) P(％) S(％)
0.52-0.60 1.50-2.00 0.60 -0.90 0.040 0.040

Mechanical Properties of steel grade EN 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)
793 (≥) 516 (≥) 41 33 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade EN 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
43 - -     0.33 -  
269 543 - 44.3 313   -  
195 - 44 13.2   442 241

Heat Treatment of steel grade EN 55Si7

Heat treated : 1957°C - 1669°C

Technological Curves of steel grade EN 55Si7

Cross Reference Table (Equivalent Grade) of EN 55Si7

Grade Standard Country Application
EN 55Si7 EN Euronorm Euronorm Structural steel
EN 55Cr3 EN 60Si7
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