Platinum Iridium Spring Wire for Precision Load Control with Chemical Stability

Product Specification

Platinum Iridium (Pt-Ir) Spring Wire is a high-performance alloy designed for applications demanding precision load control, chemical stability, and long-term mechanical reliability. Composed of 90–97% platinum and 3–10% iridium, this alloy combines platinum’s exceptional corrosion resistance with iridium’s hardness and wear resistance, ensuring consistent spring properties in harsh environments.

DLX manufactures Platinum Iridium Spring Wire using vacuum induction melting, fine wire drawing, and heat treatment processes, delivering high-purity, uniform microstructure, and tight dimensional tolerances. These wires are ideal for sensors, micro-actuators, laboratory instruments, and high-reliability medical devices where consistent elasticity, fatigue resistance, and chemical stability are critical.

Applications

Platinum Iridium Spring Wire is widely applied in:

• Precision Sensors: Load cells, pressure transducers, and micro-actuators requiring exact force response.

• Laboratory Instruments: Electrodes, analytical devices, and high-precision measurement tools.

• Medical Devices: Implantable sensors, surgical instruments, and pacemaker components.

• Aerospace Applications: Micro-sensors, actuators, and components exposed to high temperatures or harsh environments.

• Energy Sector: High-temperature probe supports and corrosion-resistant spring assemblies.

• Luxury Instrumentation: Fine mechanical controls in watches and micro-mechanical assemblies.

Material Advantages

1. Excellent corrosion resistance in chemical and oxidizing environments.

2. High fatigue strength and long-term elasticity.

3. Stable performance under thermal cycling and high temperatures (up to 1800°C).

4. Non-magnetic and chemically inert for sensitive electronic or biomedical applications.

5. Superior electrical conductivity for integration with sensors and actuators.

6. Biocompatible and safe for medical or laboratory applications.

7. Low creep and minimal dimensional change over time.

8. Customizable diameters, wire shapes, and coil configurations for precision engineering.

The demand for noble metal spring wires has grown alongside trends in miniaturized sensors, implantable devices, and high-precision analytical instruments. Engineers increasingly require materials that provide reliable load control, chemical resistance, and thermal stability, all in micro-scale geometries.

In medical devices, Pt-Ir spring wires are preferred for their biocompatibility and fatigue resistance, critical in pacemakers, surgical tools, and diagnostic sensors. Aerospace applications similarly benefit from the combination of chemical inertness, high-temperature tolerance, and long-term mechanical reliability.

Sustainability is also shaping the market. DLX has implemented a closed-loop recycling system for platinum and iridium, ensuring material efficiency and reducing environmental impact while maintaining alloy purity.

Comparison Table

DLX is a leader in high-purity Pt-Ir alloys, delivering spring wires engineered for precision load control and long-term reliability. Our proprietary vacuum induction melting and wire-drawing process ensures homogeneous microstructure and consistent mechanical properties.

We offer customizable wire diameters, coil geometries, and alloy compositions, enabling engineers to achieve exact force-response characteristics for sensors and actuators. Every batch undergoes spectral analysis, microstructure inspection, and dimensional verification, ensuring that DLX wires meet stringent performance standards.

Sustainability and cost-efficiency are also integral to DLX’s production. Our closed-loop recycling program allows for the recovery of platinum and iridium scrap, maintaining high purity while reducing material costs.

Global clients in medical, aerospace, laboratory, and energy sectors trust DLX for high-performance Pt-Ir spring wires, thanks to our rigorous quality control, reliability, and responsive customer service.

At DLX, Platinum Iridium Spring Wires are viewed as critical components for precision load control. In sensors, micro-actuators, and medical devices, the accuracy and consistency of force response directly influence performance and safety. DLX wires provide exceptional fatigue resistance, corrosion stability, and high-temperature tolerance, ensuring reliable operation over millions of cycles.

The combination of platinum’s chemical inertness and iridium’s hardness allows the wires to maintain consistent elasticity even under challenging conditions, including corrosive chemicals, extreme temperatures, and high-cycle mechanical stress. Our engineers carefully control the alloy composition, drawing process, and heat treatment to optimize load-response behavior and minimize creep, delivering predictable and repeatable results.

Miniaturization trends in medical, aerospace, and laboratory instruments demand micro-scale spring wires with precise mechanical properties. DLX meets these requirements through precision wire drawing, advanced coil forming, and meticulous inspection, producing spring wires suitable for micro-sensors and implantable devices.

Sustainability is central to DLX’s approach. Our recycling and refining processes recover platinum and iridium without compromising alloy purity, enabling cost-efficient and environmentally responsible manufacturing.

From laboratory sensors to aerospace micro-actuators and implantable medical devices, DLX Platinum Iridium Spring Wires deliver consistent, long-term performance, chemical resistance, and mechanical reliability, providing confidence in every application where precision load control is essential.

About Us:

Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

Client Visits

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We support all kinds of testing:

1. What is the typical composition of DLX Pt-Ir Spring Wires?
Standard composition is 90% platinum and 10% iridium, with custom ratios available from 90–97% platinum to optimize elasticity and hardness.

2. Why is iridium added to platinum for spring wires?
Iridium increases hardness, wear resistance, and fatigue strength, enhancing the wire’s long-term performance and stability.

3. What are the main applications of Pt-Ir spring wires?
They are widely used in precision sensors, micro-actuators, medical implants, laboratory instruments, and aerospace devices.

4. Can DLX customize wire dimensions and coil configurations?
Yes, we offer full customization of diameter, coil pitch, and shape to meet exact load and performance requirements.

5. Are DLX Pt-Ir spring wires biocompatible?
Yes, they are chemically inert and safe for use in medical and analytical applications.

6. How do these wires perform under high temperature?
DLX Pt-Ir spring wires maintain mechanical stability and elasticity at temperatures up to 1850°C.

7. Does DLX provide recycling or buy-back programs for Pt-Ir scrap?
Yes, our closed-loop system allows customers to return scrap for refining and reuse, supporting sustainability and cost efficiency.

8. What quality certifications does DLX maintain?
DLX complies with ISO 9001 and ISO 13485 standards, ensuring reliability for both industrial and medical applications.