Ductile Iron Auto Parts | Steering knuckle-caliper bracket-Controlling the road with toughness, casting the invisible backbone of driving safety.

In every car galloping on the road, there is such a group of seemingly low-key but vital components-steering knuckle and caliper bracket. They silently bear the steering accuracy, braking stability and vehicle handling safety, and are the core hubs connecting wheels, suspensions and braking systems. What gives them strong performance is the high-strength ductile iron castings (QT450-10/QT600-3/QT700-2) that we have carefully built.

Why do high-end cars choose ductile iron to make steering knuckles and caliper brackets?

The strength is comparable to that of steel, and it is superior to the castability of steel.

Spheroidal graphite cast iron is spheroidized, which has high strength (tensile strength ≥450MPa), high elongation (≥10%) and excellent fatigue resistance, while retaining good vibration damping and wear resistance of cast iron, perfectly balancing lightweight, safety and cost-effectiveness.

Complex structures are integrated to improve system reliability.

The advanced resin sand/shell/high pressure molding technology is adopted to realize the near-net forming of steering knuckle and caliper bracket, reduce welding seam and assembly errors, avoid stress concentration, and significantly improve the consistency of braking response and steering durability.

Stable performance under severe working conditions No matter the huge lateral force during sharp turn or the high temperature impact caused by continuous braking, our ductile iron castings have passed the bench fatigue test (> 10 cycles), salt spray corrosion test and **-40℃ low temperature impact verification * *, ensuring that they are still rock-solid in extreme environment.

Green intelligence, global compliance

IATF 16949 quality management system is implemented in the whole process, and the materials can be 100% recycled, with low emission and energy consumption in the production process. The products have been matched with mainstream new energy and fuel vehicles at home and abroad, and exported to Europe, America, Japan and South Korea, meeting the strict standards of OE/OEM.

Typical application scenarios

New energy electric vehicle: integrated electric drive axle steering knuckle

High performance passenger car: steering knuckle for multi-link suspension

Commercial vehicle: heavy caliper mounting bracket

Automatic driving platform: high-precision brake-by-wire support structure

We can provide you with not only parts, but also solutions:

Suggestions on material selection (QT450-10 to QT800-2)

Structural topology optimization and CAE simulation support

Rapid proofing (15 days to deliver the prototype)+batch flexible production

One-stop service for surface treatment (phosphating, dacromet and shot peening)

Every precise steering, every reliable braking, there is a solid guard behind our ductile iron castings.

Contact our auto parts technical team immediately for exclusive development plan and sample support!