The Materials You Need When You Need Them

Ed Fagan Inc. Announces the Addition of Radiometal 4550 to the Company’s Stock of Special Purpose Metals and Alloys

November 2010

FOR RELEASE:  Immediate
CONTACT:  Chris Mahn, +44 1548 858 770

Radiometal 4550 Soft Magnetic Alloy Is Used in the Manufacture of Sensitive Relays, Transformers, Chokes, and Specialty Motors Where the Properties of Silicon-Iron Alloys Do not Provide the Required Magnetic Performance.


Ed Fagan Inc. has announced the addition of Radiometal 4550 to the company’s line of soft magnetic alloys. Radiometal 4550 is a Soft Magnetic Alloy consisting of 45% Nickel, with a balance of Iron and has excellent permeability with high saturation flux density. Radiometal 4550 is used in the manufacture of sensitive relays that need to respond to very weak currents. Radiometal 4550 is also widely used in transformers, chokes and special motors where the properties of silicon-iron alloys do not provide the required magnetic performance.

Ed Fagan Inc. now stocks Radiometal 4550 in Rod and Strip/Coil. Rod is available in diameters of  12.7mm (0.5”), 15.875mm (0.625”), 19.05mm (0.75”), 25.4mm (1.0”), 40mm (1.57”), 50.8mm (2.0”), and can be cut to the required length (oversize bars are available upon request).  Hard rolled Strip/Coil is available in 0.381mm (.015”) thickness x 250mm width (9.8425”) as Inlac coated or as uncoated material. Annealed Strip/Coil is available in 0.381mm (.015”) thickness x 250mm width (9.8425”). Radiometal 4550 hard rolled or annealed Strip/Coil can be slit to the required width. Radiometal is a trademark of Carpenter Technology Corp., Reading PA. Additional Radiometal 4550 information may be found here.

Ed Fagan Inc. has supplied specialty metals and alloys such as glass-to-metal sealing, controlled expansion, electrical/electronic, refractory, and soft magnetic (non permanent magnetic) metals and alloys; and other hard-to-find materials in various forms including sheet, plate, rod, bar, coil, and foil for over 40 years to the aerospace, electronics, optics, magnetic, lighting, heat treating, defence and other high-technology industries.