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Alloy Steel 4140 Prehard Plate

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Alloy Steel 4140 Prehard Plate

The 4140 prehardened alloy steel sheet and plate is supplied at a Rockwell C hardness that eliminates the need for further heat treatment. This material is widely used for manufacturing tool holders, jigs, and high-strength structural plates. It is a staple in the tooling and heavy machinery industries due to its excellent toughness and fatigue resistance. Arriving pre-hardened saves significant production time and reduces the risk of warping associated with post-machining heat cycles. Onlinemetals.com stocks 4140 prehard plate in various thicknesses to support your heavy-duty fabrication and repair needs.