Cr10Ni90 Resistance Wire – Superior High-Temperature Stability & Low TCR for Critical Applications

Description

Cr10Ni90 resistance wire is a premium nickel-chromium alloy engineered for precision heating applications requiring exceptional thermal stability, low electrical drift, and resistance to oxidation in extreme environments. With a composition of 89–91% nickel, 9–11% chromium, and trace elements (≤0.5% iron, ≤0.3% manganese), this alloy delivers unmatched performance at temperatures up to 1,300°C (2,372°F). Its ultra-low temperature coefficient of resistance (TCR ≤ 50×10⁻⁶/°C) ensures minimal electrical variance under thermal cycling, making it indispensable for aerospace sensors, nuclear reactor instrumentation, and semiconductor manufacturing equipment.

Certified to ASTM B344 and IEC 60172 standards, Cr10Ni90 wire achieves a tensile strength of 600–800 MPa and elongation ≥25%, outperforming conventional Ni-Cr alloys in high-vacuum and inert gas environments. With an electrical resistivity of 1.04 µΩ·m and near-zero magnetic permeability, it guarantees precision in sensitive applications such as cryogenic systems, medical imaging devices, and high-frequency induction heating.

Technical Specifications (Table)

Applications

1. Aerospace: Thermocouples, RTD sensors, and satellite thermal control systems.

2. Semiconductor Manufacturing: High-purity heating elements for epitaxial reactors and diffusion furnaces.

3. Nuclear Energy: Reactor core instrumentation and radiation-resistant sensors.

4. Medical Technology: MRI magnet heaters and cryogenic cooling systems.

5. Energy Research: Fusion reactor components and superconducting magnet coils.

Q&A

Q1: What makes Cr10Ni90 suitable for cryogenic applications?
A: Its near-zero TCR and non-magnetic properties ensure stable resistivity even at temperatures near absolute zero (−273°C).

Q2: Can Cr10Ni90 operate in high-vacuum environments?
A: Yes. The alloy’s low outgassing rate and oxidation resistance make it ideal for space and semiconductor vacuum systems.

Q3: Does Cr10Ni90 meet RoHS compliance for medical devices?
A: Absolutely. It adheres to RoHS and REACH directives, ensuring safety in medical and electronic applications.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.