Product Description

P675R Bimetallic Strip (0.16mm Thickness × 27mm Width)

Product Overview

Standard Designations & Core Composition

• Product Grade: P675R
• Dimensional Specification: 0.16mm thickness (tolerance: ±0.005mm) × 27mm width (tolerance: ±0.1mm)
• Composite Structure: Typically features a "high-expansion layer"and a "low-expansion layer", with interfacial shear strength ≥160 MPa
• Compliant Standards: Adheres to GB/T 14985-2017 (Chinese standard for bimetallic strips) and IEC 60694 for thermal control components
• Manufacturer: Huona New Material, certified to ISO 9001 and ISO 14001, with in-house thin-gauge composite rolling and precision slitting capabilities

Key Advantages (vs. Generic Thin-Gauge Bimetallic Strips)

1. Ultra-Thin Stability: Maintains uniform thickness (0.16mm) and no interfacial delamination—even after 5000 thermal cycles (-40℃ to 180℃)—solving the common issue of thin-gauge bimetallic strips (≤0.2mm) being prone to warping or layer separation.
2. Precise Thermal Actuation: Controlled 温曲率 (temperature-induced curvature) of 9-11 m⁻¹ (at 100℃ vs. 25℃), with actuation temperature deviation ≤±1.5℃—critical for compact devices (e.g., micro-battery overheat protectors) where temperature thresholds are narrow.
3. Fixed Width for Automated Production: 27mm standard width matches common micro-stamping die sizes, eliminating the need for secondary slitting and reducing material waste by ≥15% compared to custom-width strips.
4. Good Machinability: Thin 0.16mm gauge enables easy bending (minimum bending radius ≥2× thickness) and laser cutting into micro-shapes (e.g., tiny thermostat contacts) without cracking—compatible with high-speed automated assembly lines.
5. Corrosion Resistance: Optional surface passivation treatment provides 72-hour salt spray resistance (ASTM B117) with no red rust, suitable for humid environments (e.g., wearable device temperature sensors).

Technical Specifications

Product Specifications

Typical Applications

• Compact Temperature Controls: Micro-thermostats for wearable devices (e.g., smart watches), small household appliances (e.g., mini rice cookers), and medical devices (e.g., insulin coolers).
• Overheat Protection: Miniature circuit breakers for lithium-ion batteries (e.g., power banks, wireless earbud batteries) and micro-motors (e.g., drone motors).
• Precision Compensation: Temperature-compensating shims for MEMS sensors (e.g., pressure sensors in smartphones) to offset thermal expansion-induced measurement errors.
• Consumer Electronics: Thermal actuators for laptop keyboard backlight controls and printer fuser temperature regulators.
• Industrial Micro-Devices: Tiny thermal switches for IoT sensors (e.g., smart home temperature/humidity sensors) and automotive micro-components (e.g., fuel system temperature monitors).

Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.

Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, high-purity magnesium, magnesium plate, magnesium die casting, magnesium extrusion profiles and other metal magnesium and deep processing products.

Thermal spray wire Division offers a wide variety of pure metal and metal alloy wires, including nickel-, iron-, aluminum-, and zinc-based wires for thermal spray projects.

Fuctional Material Division supply electronic packaging COMPONENTS(GTMS, CTMS), soft magnetic alloys and bimetal strip.

Our company is certified by ISO9001 quality system and ISO14001 environmental protection system.

Mission Statement

We try our best to understand and utilize information within the environment. With this competency, we assist customers to create added value and contribute to the development of industry and healthy living.

We strive for "Best, " welcome challenges, and are relentless till we deliver products and solutions.