High-Precision 40Cr/4140 Back Cylinder Head

Material: 40Cr / 4140 Alloy Steel

Hardness: HB250 (Pre-hardened state)

Surface Finish: Black Oxidation

Machining: High-Speed CNC turning

Key Features
Premium Material Strength: Utilizes high-grade 40Cr/4140 steel, a versatile alloy known for excellent strength, ductility, and fatigue resistance under demanding loads.

Optimized Hardness and Stability: Pre-hardened to HB250, ensuring balanced toughness, reduced internal stress, and superior dimensional stability.

Superior Surface Protection: A black oxide coating provides excellent corrosion resistance and an uniform, anti-glare finish, while increasing surface lubricity.

High-Speed CNC Precision: Manufactured on advanced high-speed CNC lathes to achieve strict tolerances and concentricity.