Induction Hardened chrome plated Steel bars 42CrMo4QT Technical Properties.

  • Diameter Tolerance Standard is ISO-f7. We can provide special tolerance at premium price.
  • Residual Magnetism Standard is Max. 50 Gauss.
  • Roundness – max ½ from the diameter tolerance (½ tol.f7).
  • Surface Roughness is Ra = max 0.20 µm.
  • Surface Hardness – Chrome Layer hardness is 800-1000 HV0,1. Steel-grade 42CrMo4QT+IH surface hardness is minimum 55HRC.
  • Straightness is max 0,3 [mm]/1000 [mm] .
  • Chrome Layer thickness for ∅≤19.05 [mm] is min. 15[µm] and for ∅>20[mm] is minimum 20[µm].

Induction Hardened chrome plated steel bars 42CrMo4QT corrosion resistance.

  • Standard Corrosion Resistance for Φ<20 is R9/120h and for Φ≥20 is R9/200h according to NSS tests.
  • We can provide higher layer or double chrome layer at premium price.

Corrosion Test standards table

Steel grade correspondents table

Chemical Composition table 42CrMo4QT according to EN 10083-3 : 2006.

Mechanical Properties table

Hardening Depth table

Standard packaging is made with plastic sleeves or cardboard tubes (depending on the product’s diameter).

As an Extra protection with additional cost we can provide also wooden boxes.