4140 Steel Test Panels

Metaspec makes 4140 (UNS G41400) alloy steel test panels, coupons and specimens in a wide range of sizes, thicknesses and surface finishes. Some standard sizes include 1" x 2", 1" x 4", 2" x 4", 3" x 6", 3" x 10", and 4" x 6". AISI 4140 alloy steel is known for its toughness, including its abrasion and impact resistance. These panels are machined from bar or plate material. Customized test panels are available on request.

Test panels can be machined from plate or bar material. A wide range of sizes and thickness are available, including panels as thin as 0.032 inch. This process leaves some visible machining marks on the surface instead of an ‘as rolled’ surface finish.

An additional polishing process can smooth out the machining marks on the faces of the test panel and is available upon request. Machined test panels are interleaved or packed individually to prevent surface scratches.

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4140 Steel Test Panels

Machined Panels