Track part and method for producing a track part

A track part comprising a low-alloy steel rail, wherein the steel comprises, in the rail head of the track part, a ferrite portion of 5-15 vol %, an austenite portion of 5-20 vol %, a martensite portion of 5-20 vol %, and a portion of carbide-free bainite of 55-75 vol %, wherein the low-alloy steel further comprises alloying components in the following amounts:

• 0.28-0.32 wt-% C;
• 0.98-1.03 wt-% Si;
• 1.7-1.8 wt-% Mn;
• 0.28-0.32 wt-% Cr;
• 0.08-0.13 wt-% Mo, and optionally;
• 0.01-0.25 wt-% V;
• 0.01-0.016 wt-% P;
• 0.01-0.016 wt-% S;
• and
• balance:
• iron;
• wherein the track part has a hardness of 320-400 HB in the head region and the amount of Cr prevents the occurrence of chromium carbides and facilitates weldability.