Browse our catalog of micro-machined, space-certified components. Engineered for maximum structural integrity and coefficient of thermal expansion matching.
In aerospace missions, satellite infrastructure, and deep-space telemetry, components face radical temperature swings ranging from absolute cryogenic levels up to hundreds of degrees Celsius. Traditional structural metals like aluminum, copper, or standard steel present significant thermal expansion rates. This causes extreme stress at transition interfaces where metal parts connect to borosilicate glass or alumina ceramics.
Space-Grade Kovar (historically structured as 4J29 / ASTM F15) solves this critical point of failure. Composed of approximately 29% Nickel (Ni), 17% Cobalt (Co), and a balance of Iron (Fe), this specialized glass-to-metal sealing alloy exhibits an ultra-stable Linear Thermal Expansion coefficient that matches borosilicate glass and ceramic materials seamlessly between room temperature and 450°C.
Maintains an absolute Coefficient of Thermal Expansion (CTE) of 4.7±0.2×10⁻⁶/℃, preventing fracture at high structural loads and thermal variations.
Certified vacuum hermetic integrity up to 1×10⁻⁹ atm.cc/s, blocking micro-gas leaks that disrupt RF signals in high-frequency space transceivers.
Extensively refined under strict vacuum induction melting (VIM) techniques to eliminate trace elements and prevent volatile outgassing in high vacuums.
The rise of private commercial space networks, 5G/6G communication infrastructure, and AI hardware acceleration has transformed the global Kovar alloys supply ecosystem.
Modern satellite constellations deployed in Low Earth Orbit (LEO) rely heavily on lightweight, multi-layered metal packaging. High-frequency 40GHz electronic enclosures require excellent insertion loss controls (IL<0.26dB) and ultra-stable dimensional tolerances. System designers no longer just purchase standard bar stock—they demand fully machined, surface-finished, and gold/nickel-plated hermetic units from trusted supply lines.
Global procurement teams in aerospace and military ecosystems faces structural challenges regarding material provenance and trace chemistry. Without rigorous control, standard Kovar is prone to carbon contamination and oxygen inclusion, leading to localized micro-voids during glass-to-metal sealing.
Xinyunyang Precision Technology Co., Ltd. addresses this directly by integrating specialized vacuum smelting with high-precision downstream structural fabrication. This guarantees complete chemical homogeneity and reliable, worry-free performance in military-grade and commercial space transceivers.
Founded in November 2014, Xinyunyang has adhered to its initial intention of industry, sticking to the business principles of Integrity, Innovation, Cooperation, and Sharing. Over years of development, we have established ourselves as a vital hermetic package lids, Kovar alloy components, and precision parts supplier in China and worldwide.
We focus on Kovar precision processing technology as our core competitiveness, deeply cultivating the fields of semiconductors, optical communications, aerospace, medical devices, and new energy/military industry, and are committed to providing miniaturized, customized, and high-reliability metal packaging solutions to global customers.
High-precision processing capability Advanced technology and equipment Strict quality control Flexible customized services
Supported by 3 Core R&D Capabilities, delivering technical depth and service breadth to the global high-end manufacturing industry chain.
The company has a professional team of more than 100 people, of which technical engineers account for 30%, guaranteeing that complex client requests are handled with absolute precision.
Our core members have been deeply engaged in precision metal processing for more than ten years. We continue to explore composite processing technology of special metals such as Kovar and titanium alloys, and proactively layout the cutting-edge packaging needs in the fields of 5G, artificial intelligence, and new energy.
With our ISO 9001 certified quality management system and intelligent production scheduling system, Xinyunyang has increased the delivery efficiency of regular orders by 15%-20%, becoming a key supplier with both technical depth and service breadth in the global market.
In today's complex international business environment, purchasing high-reliability structural materials involves meeting stringent regulatory and ESG expectations. Leading defense contractors and aerospace conglomerates mandate transparent chemical sourcing protocols.
Xinyunyang guarantees complete compliance with standard global initiatives, offering high-level support for custom production setups:
As microelectronics shift toward sub-miniaturization and high-frequency communication protocols, new material developments are vital for structural integrity. The technical department at Xinyunyang is actively developing advanced machining methods to meet tomorrow's requirements:
Applying advanced microscopic milling protocols to produce high-frequency lids and RF carriers with wall thicknesses below 0.15mm without structural deformation.
Creating unified packages with localized CTE variances by diffusion-bonding Kovar with high-conductivity materials like copper and silver-matrix alloys.
Improving deep-space alloy formulations to prevent phase transitions down to cryogenic levels of -269°C (Liquid Helium environments).
Detailed technical answers for aerospace engineers, metal purchasers, and system architects regarding glass-to-metal sealing alloys.
Borosilicate glass expands at approximately 4.6×10⁻⁶/℃, while common metals like steel expand at 12×10⁻⁶/℃, resulting in immediate joint cracking during thermal cycling. Kovar’s specialized thermal expansion curve matches Borosilicate glass accurately up to 450°C. This permits seamless glass-to-metal seals, maintaining hermetic integrity in high-vibration aerospace and satellite settings.
Standard grade Fe-Ni-Co alloys can undergo a martensitic phase transformation at low temperatures (below -60°C), resulting in expansion changes and potential hermetic seal failures. Xinyunyang's high-purity space-grade Kovar is manufactured with precise trace element control and heat treatment protocols to suppress phase transitions down to -196°C, ensuring reliable deep-space performance.
Yes. Kovar oxidizes easily when exposed to standard atmospheric environments, so electroplating is necessary before final assembly. We offer custom, in-house plating options, including electroplated nickel, electroless nickel, and high-purity soft gold (99.99% purity), designed for secure die attachment and gold wire bonding.
Thanks to our ISO 9001 certified quality system and smart manufacturing processes, we improve delivery speeds by 15% to 20%. Standard prototype custom parts are processed within 2 weeks, while larger volume components typically ship within 4 to 6 weeks, complete with material traceability reports.
Yes, all processed parts are completely RoHS and REACH compliant. We ensure that no restricted hazardous materials are used in our production or post-processing stages. Additionally, we are committed to conflict-free sourcing, meeting strict international procurement guidelines.
Explore our complete range of high-precision CNC components, gold-plated connectors, and hybrid metal-ceramic housing solutions.
Xinyunyang Precision
