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Solid bar

AISI 4145H MOD / EN 1.7225

AISI 4145H is a chromium-molybdenum low-alloy steel that has undergone tempering. Known for its enhanced hardenability, this steel is frequently utilized in applications requiring high strength.

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Dimensions

31,75mm - 355,6mm

Application

Mechanical properties

Yield Strenght, Mpa (KSI)
Min 896 (130)
Tensile Strength, Mpa (KSI)
Min 965 (140)
Elongation (%)
Min 14 %
Hardness (HRC)
30-36
Impact Charpy-V, -20ºC (J)
≥27
Impact average value (J)
41

Chemical composition

C
Si
Mn
P
S
Cr
Mo
NI
Cu
V
Min.
0,43%
0,15%
0,75%
0,8%
0,15%
Max.
0,48%
0,35%
1%
0,025%
0,025%
1,1%
0,25%
0,25%
0,3%
0,05%

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