Product Description
Alloy Overview
Alloy 52 (UNS designation N14052, W.Nr. 2.4478 / FeNi50) is a binary iron-nickel controlled-expansion alloy consisting of approximately 50.5% to 52% nickel with the balance iron. Trade names for this alloy include NILO 50 (or NILO 52), Pernifer 50, Invar 52, and Glass Sealing 52.
It is designed to match the thermal expansion characteristics of soft glasses (such as lead-alkali and soda-lime-silicate glasses) and specific ceramic materials up to approximately 500 C (930 F). Main applications include hermetic glass-to-metal seals, mercury switches, electronic tubes, automotive/industrial lamps, and semiconductor lead frames.
Chemical Composition (UNS N14052 / ASTM F30)
Values are weight percentages (wt %) based on standard specifications:
| Element | Min (%) | Max (%) | Nominal Target |
| Nickel | 50.00 | 51.50 | 50.50 % |
| Cobalt | | 0.50 | < 0.20 % |
| Manganese | | 0.60 | 0.30 % |
| Silicon | | 0.30 | 0.20 % |
| Carbon | | 0.05 | < 0.03 % |
| Chromium | | 0.25 | < 0.10 % |
| Phosphorus | | 0.025 | < 0.015 % |
| Sulfur | | 0.025 | < 0.015 % |
| Aluminum | | 0.10 | < 0.05 % |
| Iron | Balance | Balance | ~48.0 49.0 % |
Note: The nickel content is tightly adjusted by manufacturers to maintain exact thermal expansion profiles.
Physical Properties
| Property | Metric Value | Imperial Value |
| Density | 8.30 g/cm | 0.300 lb/in |
| Melting Point | 1427 C | 2600 F |
| Curie Temperature | 520 C | 968 F |
| Electrical Resistivity | 0.43 m (43 cm) | 258 Ohmcirc mil/ft |
| Thermal Conductivity | 18.0 W/mK | 10.4 Btu/hrftF |
| Specific Heat Capacity | 500 J/kgK (0.12 cal/gC) | 0.12 Btu/lbF |
| Modulus of Elasticity | 159 GPa | 23.0 10 psi |
Exceptional Magnetic and Physical PropertiesAlloy 52 Scrap stands out for its impressive magnetic permeability and excellent corrosion resistance, making it a preferred choice for use in sensitive electronics and magnetic components. Its low coefficient of thermal expansion ensures dimensional stability under fluctuating temperatures, which is vital in aerospace and electrical industries.
Versatile Forms and Immediate AvailabilitySupplied in clean, sorted rectangular blocks or pieces, Alloy 52 Scrap meets custom length and weight requirements. With versatile packaging options-such as bags or bulk containers-and ample ready stock, Indian dealers and traders can deliver efficiently to manufacturers, recyclers, and fabricators across diverse industries.
FAQ's of Alloy 52 Scrap NILO 50 Scrap Pernifer 50 Scrap:
Q: How is Alloy 52 Scrap (NILO 50 / Pernifer 50) typically used in industry?
A: This high-purity industrial alloy scrap is widely used for melting and recycling to produce new metal products. Its magnetic permeability and excellent stability also make it suitable for manufacturing sensors, transformers, electronic components, and magnetic parts in the aerospace, electrical, and electronics sectors.
Q: What benefits does Alloy 52 Scrap offer for recycling and production?
A: The scrap's high purity, excellent corrosion resistance, and clean, sorted condition streamline the recycling process, leading to reduced processing costs and high-quality output. Its low thermal expansion and magnetic properties also make it valuable for precision applications.
Q: When is Alloy 52 Scrap typically available for purchase?
A: Ready stock of Alloy 52 Scrap is maintained by Indian suppliers, exporters, and manufacturers, allowing for immediate or near-immediate supply upon request, depending on specific order requirements.
Q: Where can buyers source Alloy 52 Scrap in India?
A: Dealers, exporters, fabricators, manufacturers, and suppliers across India offer Alloy 52 Scrap, commonly catering to the needs of metallurgical, aerospace, electronics, and electrical industries. The scrap can be purchased directly from these authorized channels.
Q: What is the process for using Alloy 52 Scrap in remelting or manufacturing?
A: Once procured, the clean and sorted rectangular blocks are melted in controlled furnaces. The resulting alloy can be repurposed into new shapes, components for electronics, or magnetic assemblies, all while ensuring optimal material utilization and minimal waste.
Q: How does the corrosion resistance of Alloy 52 Scrap benefit end-users?
A: With exceptional corrosion resistance, Alloy 52 Scrap ensures longevity and reliability in end products, particularly those exposed to demanding environments in industries such as aerospace and electronics. This durability reduces maintenance needs and extends product lifespan.