Key Steel (BS4235)—Precision Engineering Material for Industrial Applications

Key Steel is a vital engineering material widely used for manufacturing keys, shafts, couplings, and other components requiring high precision and reliability. It is typically supplied as precision-ground, bright-drawn, or cold-drawn bars, ensuring tight tolerances and dimensional accuracy. At Nifty Alloys L.L.C., we provide high-quality Key Steel in both metric and imperial sizes to meet the requirements of industries such as automotive, power transmission, heavy machinery, and general engineering.

When you choose Key Steel from Nifty Alloys, you benefit from durable mechanical performance, ease of machining, and long service life, making it the trusted choice for critical engineering applications.

What is Key Steel?

Keysteel, often referred to as key bar or key steel, is a type of precision-machined metal commonly used in engineering and manufacturing. This material serves as the component that fits into the keyway of a shaft and hub, ensuring power transmission and preventing rotation between parts. Keysteel is available in both metric and imperial sizes, and can be found in different finishes, such as self-colour and bright zinc plated, to suit a wide range of applications.

• Manufacturing process: Cold-drawn or precision-ground to tight tolerances.
• Supplied condition: Bright finish, straightened, and ready for machining.
• Common forms: Flat bars, square bars, and rectangular strips.

Unlike ordinary carbon steels, Key Steel is produced to exacting standards that guarantee high tensile strength, impact resistance, and dimensional accuracy.