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Type E Thermocouple Bare Wire EP EN 1.6mm Diameter High Sensitivity Grade Fast

China Type E Thermocouple Bare Wire EP EN 1.6mm Diameter High Sensitivity Grade Fast

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Type E Thermocouple Bare Wire EP EN 1.6mm Diameter High Sensitivity Grade Fast

MOQ： 10KG
Price： Negotiable
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Payment Terms	L/C,T/T,Western Union
Supply Ability	500 tons per month
Delivery Time	5-21 days
Packaging Details	Carton/Wooden case
Alloy Grade	Type E
Diameter	1.6mm (±0.015mm)
Form	Coil
Accuracy Class	IEC Class 1
Operating Temperature	-270°C ~ 800°C (continuous)
Tensile Strength	≥650 MPa (EP), ≥450 MPa (EN)
Elongation	≥20% (EP), ≥30% (EN)
Surface Finish	Gold/Blue (color can be customized)
Brand Name	Huona
Model Number	Type E
Certification	ISO9001
Place of Origin	Shanghai

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Product Details
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Product Specification


Payment Terms	L/C,T/T,Western Union	Supply Ability	500 tons per month
Delivery Time	5-21 days	Packaging Details	Carton/Wooden case
Alloy Grade	Type E	Diameter	1.6mm (±0.015mm)
Form	Coil	Accuracy Class	IEC Class 1
Operating Temperature	-270°C ~ 800°C (continuous)	Tensile Strength	≥650 MPa (EP), ≥450 MPa (EN)
Elongation	≥20% (EP), ≥30% (EN)	Surface Finish	Gold/Blue (color can be customized)
Brand Name	Huona	Model Number	Type E
Certification	ISO9001	Place of Origin	Shanghai
High Light	Type E thermocouple bare wire ，1.6mm diameter thermocouple wire ，high sensitivity temperature sensing wire

Type E Thermocouple Bare Wire (EP/EN) – 1.6mm Diameter High-Sensitivity Grade

Product Overview

This Type E thermocouple bare wire from Huona is a high-sensitivity, mid-temperature thermoelectric pair consisting of EP (Chromel, positive leg) and EN (Constantan, negative leg), purpose-built for precision low-to-medium temperature applications. Manufactured via precision drawing and controlled annealing, this heavy-gauge wire delivers exceptional Seebeck coefficient, excellent corrosion resistance, and robust mechanical performance, making it ideal for process control, cryogenic systems, and chemical processing where high signal output and long service life are critical.

Core Specifications

Product Name: Type E Thermocouple Bare Wire (EP/EN Pair, High-Sensitivity)
Alloy Composition:
- EP (Positive Leg): Chromel (Ni: ~90%, Cr: ~10%)
- EN (Negative Leg): Constantan (Cu: ~55%, Ni: ~45%)
Diameter: 1.6mm (customizable: 1.0–3.0mm)
Tolerance: ±0.015mm
Form: Coil (standard length: 50m/leg; custom lengths available)
Thermoelectric Performance:
- Accuracy Class: IEC Class 1 (±1.5°C or ±0.4% of reading, whichever is greater)
- Thermoelectric Power: ~60.0 µV/°C at 100°C (highest among common base-metal thermocouples)
Operating Temperature Range: -270°C ~ 800°C (continuous use; optimized for cryogenic to mid-range industrial processes)
Standards Compliance: IEC 60584-1, ASTM E230, GB/T 4989, RoHS 2.0
Manufacturer: Huona (Shanghai) New Material Co., Ltd.

Key Differentiating Advantages

1. Industry-Leading Thermoelectric Sensitivity

Type E wire offers the highest Seebeck coefficient (~60 µV/°C) of any common base-metal thermocouple, delivering significantly stronger output signals than Type K, J, or T. This results in improved measurement resolution and noise immunity, making it ideal for low-temperature applications where small temperature changes need to be detected accurately.

2. Excellent Corrosion & Oxidation Resistance

The Chromel-Constantan pair exhibits superior resistance to corrosion in acidic, reducing, and marine environments compared to iron-based (Type J) or nickel-based (Type K) wires. It is also highly resistant to hydrogen embrittlement, making it suitable for chemical processing and cryogenic applications.

3. Robust Mechanical Durability for Continuous Use

The 1.6mm diameter provides a balanced combination of strength and flexibility, with high tensile strength (≥650 MPa) and resistance to thermal fatigue. It withstands repeated thermal cycling without cracking or deformation, ensuring long-term reliability in industrial process control systems.

4. Stable Performance Across Wide Temperature Ranges

Type E wire maintains consistent thermoelectric properties from cryogenic temperatures (-270°C) up to 800°C, with minimal drift or hysteresis. This versatility makes it suitable for applications ranging from liquid nitrogen storage tanks to industrial ovens.

5. Low Drift & High Accuracy for Precision Applications

Unlike Type J (which suffers from oxidation above 500°C) or Type K (prone to green rot above 800°C), Type E wire maintains stable readings up to 800°C with minimal drift. This makes it ideal for precision process control in pharmaceutical manufacturing, food processing, and semiconductor production.

Technical Specifications Table

Attribute	Value (Typical)
Alloy Grade	EP (Chromel) / EN (Constantan)
Diameter	1.6mm (±0.015mm)
Form	Coil
Accuracy Class	IEC Class 1
Operating Temperature	-270°C ~ 800°C (continuous)
Tensile Strength	≥650 MPa (EP), ≥450 MPa (EN)
Elongation	≥20% (EP), ≥30% (EN)
Surface Finish	Dark, oxide-free finish (optimized for corrosion resistance)
Packaging	Moisture-proof, anti-oxidation coil packaging

Typical Applications

Chemical & Pharmaceutical Processing: Temperature monitoring in reactors, distillation columns, and sterilization equipment.
Cryogenic Systems: Temperature sensing in liquid nitrogen storage tanks, cryogenic freezers, and low-temperature research labs.
Food & Beverage Manufacturing: Process control in ovens, pasteurizers, and fermentation tanks.
Semiconductor & Electronics: Thermal monitoring in manufacturing equipment and environmental test chambers.
Marine & Offshore: Corrosion-resistant temperature sensing in shipboard equipment and offshore platforms.

Company Details

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Business Type:

Manufacturer,Exporter 
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Year Established:

2008 
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Total Annual:

8000000-100000000
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Employee Number:

100~120 
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Ecer Certification：

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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, hig... 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, hig...

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