George Metals, with headquarters in Houston, USA, is a trusted producer and supplier of Mu-Metal Bars and Rods, offering high-performance magnetic shielding materials for sensitive electronic and industrial applications. With specialized knowledge in precision manufacturing and thermal treatment processes, George Metals ensures that every Mu-Metal product has the rigorous specifications to ASTM A753 standards. Their bars and rods are designed for maximum magnetic permeability and lowest field distortion. Supplying customers in aerospace, medical, defense, and research applications, George Metals provides custom sizing, quick delivery, and technical assistance to provide the maximum level of electromagnetic interference (EMI) protection.
Mu-Metal Bars and Rods consist of about 77–80% nickel, 15–18% iron, 4–5% molybdenum, and trace amounts of copper. This peculiar makeup endows Mu-Metal with its characteristic characteristics: very high magnetic permeability (to 80,000 at low field strength), low coercivity, and very good shielding against low-frequency magnetic fields. The alloy’s tensile strength is approximately 620 MPa, yield strength is about 228 MPa, and elongation is close to 40%. It possesses a density of approximately 8.74 g/cm³ and a Curie temperature of approximately 410°C. Mu-Metal cannot be hardened by heat treatment and will have to be annealed in hydrogen to recover its magnetic qualities.
| Standards : | — |
| Size Range : | 0.015″ Thk up to 2″ Thk |
| Thickness : | Range from .008″ to .0125″ |
| Length : | 2m, 2.44m, 3m, or as required |
| Width : | 10-2500mm |
| Grade | C | Ni | Mo | I | Si | Mn |
| MU Metal | 0.02 max | 80.0-80.0 | 4.20 max | Balance | 0.35 max | 0.50 max |
| Grade | Density | Electrical Resistivity | Specific Heat | Tensile Strength | Specific Heat |
| MU Metal | 8.74 g/cm3 | 0.0000580 ohm-cm | 0.494 J/g-°C | 620 MPa (Ultimate) / 228 MPa (Yield) | 0.494 J/g-°C |
Mu-Metal Rods and Bars are extensively applied in applications where there is a need for high-efficiency shielding using magnetic fields to shield delicate electronic devices from static and low-frequency magnetic fields. Applications include transformer shielding, sensors, MRI equipment, cathode ray tubes, and scientific devices such as magnetometers and photomultiplier tubes. In medicine, Mu-Metal is employed on diagnostic imaging devices to guard against electromagnetic interference. Avionics and satellite systems depend on Mu-Metal for shielding avionics and satellite systems. It is also critical in research labs and industrial control panels where stability of magnetic fields is required for performance and precision.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
George Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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