Semi-flanges

Semi-flanges and bushings

Semi-flanges, consisting of two parts joined by nuts and bolts, provide a versatile fastening system that is easy to open and close, ideal for applications requiring frequent maintenance or inspections. Each flange is accompanied by an EN10204 3.1 certificate and, upon request, by an EN10204 3.2 PED certificate. Osra Special Parts also offers a complete kit including bushings, nuts, and bolts for full installation.

Production Tables

Surface Treatments for Enhanced Durability

Nickel Plating

Nickel plating applies a layer of nickel on metal surfaces, improving corrosion resistance, durability, surface hardness, and aesthetic finish. Due to its ability to protect materials from corrosion and wear, nickel plating is a preferred choice for applications requiring high performance and a premium finish

Zinc Plating

Galvanic (electrolytic) zinc plating coats metals with a layer of zinc via immersion in molten zinc solution or electrodeposition, enhancing resistance, corrosion protection, and shine. Widely used in construction, automotive, and shipbuilding industries, it preserves the integrity and appearance of components exposed to atmospheric agents.

S355J2

INOX AISI

MATERIALS ON REQUEST

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