826M40 is a high-tensile nickel-chromium-molybdenum alloy steel known for its exceptional strength, toughness, and wear resistance. Also designated under the British Standard BS 970 as EN24, this material is engineered for components subjected to high stress and demanding operational conditions. Its unique composition—including nickel for toughness, chromium for hardenability, and molybdenum for strength at elevated temperatures—makes it a superior choice for your critical engineering applications.

This through-hardening alloy steel provides a reliable balance of properties, offering excellent ductility and shock resistance even in large cross-sections. For project managers and engineers in sectors like oil & gas, automotive, and aerospace, 826M40 represents a dependable solution for manufacturing components that must not fail. Its performance underpins the safety and reliability of high-performance machinery and structures worldwide. When your project demands proven strength and durability, 826M40 is an exceptional material choice.

What is 826M40 Alloy Steel?

826M40 Alloy Steel is a nickel-chromium-molybdenum (Ni-Cr-Mo) alloy steel designed for high-strength mechanical applications. It combines the toughness of nickel, the wear resistance of chromium, and the hardenability of molybdenum — resulting in a material that performs reliably under heavy stress and impact.

This steel is part of the BS 970 specification and is equivalent to AISI 4145 and DIN 1.7225. It’s often chosen over carbon steels when greater toughness and fatigue resistance are required, especially in large-section components that demand uniform hardness throughout. If your project involves rotating shafts, gears, couplings, or drilling tools, 826M40 gives you dependable strength and long service life.