October 2025

🌟 Daily Focus on Alloy Market: August 27, 2025 🔬 Today’s Technology Frontier: Breakthrough Application of Aluminum-Clad Invar Core Super Heat-Resistant Aluminum Alloy Strand The JNRLH3/LBY-160/35 aluminum-clad invar core super heat-resistant aluminum alloy strand, launched by Hubei Changtian Communication Technology Co., Ltd., has become a focal point in power grid upgrades. Its core advantages include: High-Temperature

1. Material System: Three Major Specialty Steel Families Dominating Advanced Manufacturing Steel Type Typical Grades Extreme Performance Strategic Applications High-N Austenitic SS North Heavy Industries 0.85%N Steel Non-magnetic, seawater resistance, 2x strength Ship power systems, deep-sea equipment Ultra-High Strength Marine Steel Xinsteel EQ70 -40℃ impact toughness ≥80J, yield strength ≥690MPa Polar vessels, FPSO platforms Hot-Formed

1. Material Overview: Why 4J32 Dominates Precision Engineering 4J32, also known as Super Invar alloy, is a Fe-Ni-Co-based precision material designed for scenarios requiring near-zero dimensional changes under temperature fluctuations-4-6-7. Its core advantage lies in an ultra-low thermal expansion coefficient (α ≤1.0×10⁻⁶/°C at 20–100°C), outperforming conventional Invar 4J36 in critical temperature ranges-4-7. Key Performance Metrics vs. Competing Alloys

A silvery alloy is quietly transforming energy infrastructure worldwide. In Q1 2025, global Permalloy demand surged 40% – the highest growth in a decade – driven by electric vehicles and wind power.

Introduction: The “Metal Miracle” That Defies Physics When China’s Baosteel and CSSC broke a 50-year French monopoly in 2021 by producing 0.7mm Invar foil – the world’s thinnest commercial-grade alloy – they unlocked China’s ability to build LNG carriers independently. This milestone cemented Invar (also called Invar 36 or FeNi36) as a strategic material reshaping global high-tech