Chrome Silicon

Chrome Silicon has a high tensile strength and resilience to higher temperatures making chrome silicon steel suitable for springs and wire forms that must withstand shock loads, high stress, and temperature environments.

Technical Specification Chrome Silicon
Nominal Composition

C: 0.51 - 0.59

Cr: 0.60 - 0.80

Si: 1.20 - 1.60


0.284 lb./in3

Modulus of Elasticity (E)

30 x 106 psi

Modulus of Rigidity (G)

11.5 x 106 ksi

Coefficient of Expansion


Electrical Resistivity

32.3 µΩ.in

Thermal Conductivity

108 Btu/(hr/ft2/in/°F)

Min Size

0.016 in (0.406 mm)

Max Temp

246oC (475oF)


The resilience to high impact, shock load, and high-temperature which makes it a well suited material for valve springs in performance vehicles like race cars and firearm recoil springs.