Boron & Cold Heading (CHQ) Steels
Form with Ease. Harden with Confidence.
The creation of a high-strength fastener is a journey of transformation. It begins with a steel soft enough to be forged into a complex shape at incredible speeds, and ends with a material hard enough to withstand immense forces. Boron steel is the catalyst for this transformation. A microscopic addition of boron unlocks a dramatic increase in hardenability, allowing for the perfect synergy of excellent cold formability and superior final strength.
The Power of a Single Element
Cold Heading Quality (CHQ) steel must possess exceptional purity and formability to withstand the intense pressures of modern forging without cracking. The addition of boron is a sophisticated metallurgical tool that gives the steel incredible hardenability after it has been formed. This allows manufacturers to use lower-carbon steels that are easy to form, and still achieve the high strength of a more complex alloy in the final, heat-treated component.
Excellent Cold Formability
Engineered with a clean chemistry for high-speed cold heading and forging processes without cracking.
Superior Hardenability
The boron addition allows for a deep, uniform hardness after heat treatment, even with lower carbon content.
Consistent Heat Treatment
Provides a predictable and reliable response to quenching and tempering, crucial for high-volume production.
Ideal for High-Strength Fasteners
The perfect material for producing high-strength bolts, screws, and other fasteners (e.g., grades 8.8, 10.9).
Select a Grade for Detailed Specifications
Typical Applications
The Foundation of a Billion Connections
Every machine, every vehicle, every structure is held together by the integrity of its fasteners. The Marbrite Standard for Boron steel is our commitment to providing a flawless foundation for these critical components. We deliver CHQ steel with a verified chemistry, ensuring the predictable formability and consistent hardenability your high-volume process demands. Forge your connections with the confidence that comes from a superior material.