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C360 brass test coupon with as rolled surface finish

C360 Brass Test Panels

Metaspec makes test panels, coupons, catalysts, and specimens from C360 brass (UNS C36000). This alloy is also known as CDA 360, Alloy 360 and Free Cutting or Free Machining Brass (because the material machinability rating is 100). This alloy is often used in fastenings (including nuts, bolts, and other connectors) and pump shafts. C360 brass is often used in corrosion or materials compatibility testing. 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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