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Contact Us GLOBAL Search this site 日本語 中文 Corporate Overview Products and Services Research and Development Sustainability News Corporate Overview Message from the Management Philosophy Quick Guide to JX Advanced Metals Business Segments Corporate Data Organization and Executive Officers Corporate History Operating Sites and Group Companies Long-Term Vision and Medium- to Long-term Business Strategies and Business Targets Purchasing Information Products and Services Search by Category Copper Alloys and Special Steel Products Copper Foil Sputtering Targets Compound Semiconductors and Crystal Materials Metal and Compound Powders Special Ceramic Powders High Purity Metals Surface Treatment Agents Upinorg (high-purity copper sulfate) Electroless UBM Plating Service MoSi2 Heater Shielding Materials Nonferrous Metals and Chemical Products Products Under Development Search by Keyword Semiconductors and Sensors Circuit Boards Assembly Displays Batteries and Energy Additive Manufacturing Connectors Magnetic Devices Electromagnetic Shielding Communications Optics Camera Modules Piezoelectricity Thermal Control Research and Development Our Core Technologies Contributing to Societal Growth and Innovation Initiatives for Co-creation Collaboration in the Group SQUARE LAB Sustainability Sustainability Report Toward Net-Zero CO2 Emissions Activities in Environmental Conservation CSR Purchasing News News Release Trade Fairs and Exhibitions MENU HOME Products and Services Copper Alloys and Special Steel Products Copper Alloy Strip Corson Alloys NKC164E ― High conductivity Corson Alloy Corson Alloys NKC164E ― High Conductivity Corson Alloy High Conductivity Corson Alloy NKC164E Overview Recent years have witnessed demand for copper alloy materials with higher electrical conductivity, to control the rise in heat generation from current flowing in increasingly compact connectors. We developed the high conductivity Corson alloy NKC164E to meet such demand. Along with high conductivity, it has excellent spring properties, bend formability, and thermal resistance. It is ideal for use where connectors for in-vehicle electronics, consumer electronics, or information devices must withstand particularly high current or offer high heat dissipation. NKC164E is conformant with Japanese Automobile Standards Organization standard (JASO D620) JC300. S-S curve data Technical data Features 1.A copper alloy combining high electrical conductivity of 55% IACS and 600 MPa-level strength. 2.Excellent bend formability enables contact bending and box bending. 3.It delivers superior stress relaxation resistance, even at high temperatures. Table 1. NKC164E chemical composition (wt%)   Cu Ni Si Standard composition Remainder 1.6 0.35 Note that all numerical values shown are typical values. Table 2. Physical properties of NKC164E Electrical conductivity 55 %IACS (@20&＃8451;) Specific resistance 30 n&＃937;&＃183;m (@20&＃8451;) Thermal conductivity 240 W/mK Linear expansion coefficient 17.7 ×10-6/K (20 to 300&＃8451;) Modulus of elasticity 120 GPa Density 8.89 g/cm3 Note that all numerical values shown are typical values. Table 3. Mechanical properties of NKC164E (upper: typical values, lower: specification range) Temper Tensile strength (MPa) Yield strength (MPa) Elongation (%) Vickers hardness (Hv) H 630 (590-680) 610 (540-680) 12 5min 200 (160-220) EH 690 (620-760) 670 (600-740) 5 2min 210 (170-230) Note that all numerical values shown are typical values. Table 4. NKC164E bend formability (Test piece shape: thickness 0.2 mm × 10 mm wide × 30 mm long) Temper MBR/t Good way Bad way H 0 0 EH 0 0.2 MBR/t:Minimum Bend Radius without cracking / thickness Note that all numerical values shown are typical values. Please inquire about bend formability of different thicknesses. 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