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P675R Bimetal Strip Mn75Ni15Cu10 Ni36 for Thermal Applications

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Huona (Shanghai) New Material Co., Ltd.

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P675R Bimetal Strip Mn75Ni15Cu10 Ni36 for Thermal Applications

Name: P675R Bimetal Strip Mn75Ni15Cu10 Ni36 for Thermal Applications
Brand: Huona
Price: 1 USD

Brand Name : Huona

Model Number : P675R

Certification : ISO9001

Place of Origin : Shanghai

MOQ : 10-50kg

Price : Negotiable

Payment Terms : L/C,T/T,Western Union,MoneyGram

Supply Ability : 500 tons per month

Delivery Time : 5-21days

Packaging Details : Carton/Wooden case

Product Name : Bimetal Strip P675R

High Expansive Layer : Mn75Ni15Cu10

Low Expansive Layer : Ni36

Total Thickness Range : 0.1mm - 2.5mm (tolerance: ±0.01mm)

Tensile Strength : 480MPa (transverse direction)

Resistivity(20℃±5℃) : 113(μΩ·cm)

Linearity Temperature Range : -20-150℃

Density : 7.7 g/cm³

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Product Description

P675R Bimetallic Strip

Product Overview

P675R bimetallic strip is a high - performance composite material composed of two layers of metals with distinct coefficients of thermal expansion. The high - expansion layer is typically made of Mn 75 Ni 15 Cu 10, while the low - expansion layer is Ni 36. This unique combination enables the strip to bend or deform predictably in response to temperature changes, making it a fundamental component in a wide range of temperature - sensitive applications.

Standard Designations

Material Standards: Conforms to DIN 17155 and ASTM B388 for bimetallic strip performance
Industry Codes: Recognized as a Class A thermosensitive material under IEC 60730-2-9
Alternative Designations: Equivalent to grades such as Thermalloy 675 and Bimet 75-36

Key Features

High Deflection Sensitivity: 0.25mm deflection per 10°C at 100mm length (20-100°C range)
Low Hysteresis: <2°C deviation between heating and cooling response
Long-Term Stability: <1% deflection loss after 10,000 thermal cycles (-40 to 150°C)
Electrical Conductivity: 8.5 S/m (enables use in current-carrying thermal switches)
Corrosion Resistance: Passes 500-hour salt spray test (ASTM B117) with minimal oxidation

Technical Specifications

Attribute	Value
Total Thickness Range	0.1mm - 2.5mm (tolerance: ±0.01mm)
Width Options	3mm - 120mm (tolerance: ±0.05mm)
Layer Thickness Ratio (High:Low)	1:1 (custom ratios 2:1, 3:1 available)
Operating Temperature Range	-50°C to 180°C (continuous)
Maximum Short-Term Temperature	200°C (≤10 minutes)
Tensile Strength	480MPa (transverse direction)
Elastic Limit	220MPa
Thermal Deflection Coefficient	21.2 × 10⁻⁶ /°C (20-150°C)

Material Composition

Layer	Main Elements (wt%)	Trace Elements (max, wt%)
High-Expansion (Mn75Ni15Cu10)	Mn:75, Ni:15, Cu:10	C:0.03, Si:0.2, Fe:0.5
Low-Expansion (Ni36)	Ni:36, Fe:64	C:0.02, Mn:0.3, Si:0.1

Product Specifications

Item	Detail
Surface Finish	Annealed (Ra ≤0.8μm) or bright rolled (Ra ≤0.4μm)
Cutting Options	Slit strips, cut-to-length pieces, or continuous rolls
Length per Roll	50m, 100m, 300m (on 300mm diameter plastic spools)
Adhesion Strength	≥150MPa (layer bond strength, ASTM D3163)
Packaging	Vacuum-sealed in moisture barrier bags with desiccants

Typical Applications

Domestic appliance thermostats (ovens, water heaters, dryers)
Overcurrent protection devices (motor overload relays)
Fire safety sensors (heat detectors)
Automotive underhood temperature switches
Industrial process temperature regulators

We provide custom slitting, forming, and heat treatment services for P675R strips. Free samples (100mm × 20mm) and thermal deflection test reports are available upon request.

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