Piston Materials

In Simple Terms

F1 engine pistons must be made from specific iron-based alloys that are approved by the FIA. These four specific material grades (AMS 6487, 15cdv6, 42CrMo4, and X38CrMoV5-3) are chosen for their strength and durability to withstand the extreme pressures and temperatures inside an F1 engine.

• Pistons are restricted to four approved iron-based alloy materials
• Approved materials: AMS 6487, 15cdv6, 42CrMo4, and X38CrMoV5-3
• This standardization ensures fair competition and engine reliability across all teams
• Teams cannot use alternative materials or proprietary alloys not on the approved list