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X45CrSi9-3

Description

International ISO ISO 683-15 (1992), X45CrSi9-3 Specialsteel Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X45CrSi9-3
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X45CrSi9-3 Martensite ISO International Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the X45CrSi9-3

C Si Mn P S Cr Mo Ni
0.40 -0.50 2.70 -3.30 ≤0.80 ≤0.040 ≤0.030 8.00 -10.00 ≤ ≥ ≤0.60

Mechanical Properties of steel grade X45CrSi9-3

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)
438 (≥) 191 (≥) 13 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade X45CrSi9-3

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
41 - -     0.13 -  
963 448 - 42.3 133   -  
184 - 42 24.2   244 234

Heat Treatment of steel grade X45CrSi9-3

Heat treated : 1354°C - 1227°C

Technological Curves of steel grade X45CrSi9-3

Cross Reference Table (Equivalent Grade) of X45CrSi9-3

Grade Standard Country Application
X45CrSi9-3

Relevant standard of X45CrSi9-3

ISO 683-15 (1992) Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines ISO-683-15-(1992).pdf

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