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  5. Type E Thermocouple Wire

Type E Thermocouple Wire

Due to its high electromotive force (EMF) output and exceptional sensitivity, this thermocouple wire is suitable for detecting small temperature variations. It offers stable performance even at temperatures as low as 300ºC and provides strong corrosion resistance in humid environments. It’s widely used in oxidizing or inert atmospheres, it should be avoided in reducing environments or those containing sulfur compounds to maintain durability and accuracy.

Chemical composition (%)
Material Chemical composition (%)
Ni Cr Cu Mn Al
EP(Chromel) 90 10      
EN(Constantan) 45   55    
Physical and mechanical properties
Material Density (g/cm3) Melting point℃ Tensile strength (Mpa) Volume resistivity (μΩNaN) Elongation rate (%)
EP(Chromel) 8.5 1427 >490 70.6(20℃) >25
EN(Constantan) 8.8 1220 >390 49.0(20℃) >25
EMF value range at different temperatures
Material EMF Value vs. Platinum (μV)
100℃ 200℃ 300℃ 400℃ 500℃ 600℃ 700℃ 800℃
EP (Chromel) 2769~2859 5921~6019 9272~9374 12709~12819 16144~16282 19537~19699 22859~23043 26102~26308
EN (Constantan) 3499~3561 7389~7513 11647~11779 16109~16255 20699~20885 25362~25588 30030~30292 34664~34960
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OHMALLOY Material Co.,Ltd.

Office Add.: T3-1108,Lane 699, Tongji Road, Baoshan District, Shanghai
Factory Add.: No 126, Jincheng Road, Xindeng, Fuyang,Hangzhou City, Zhejiang Province
Tel.: +86-21-66796338
Fax: +86-21-66796339
Mobile: +86-13795230939
Email: sales@ohmalloy.com
WhatsApp: +86-13795230939

Other Products
  • Type N Thermocouple Wire
  • SNC(RNC, RNX) Thermocouple Wire
  • Ceramic Thermocouple Protection Tubes
  • Kovar Alloy
Products List
  • High Resistance Alloy
    1. Nichrome Alloy
    2. FeCrAl Alloy
  • Thermocouple Alloy
    1. Thermocouple Compensating Cable
    2. Thermocouple Alloy Wire
      1. Type K
      2. Type J
      3. Type L
      4. Type E
      5. Type N
      6. SNC(RNC, RNX)
    3. Ceramic Thermocouple Protection Tubes
  • Precision Alloy
    1. Thermal Expansion Alloy
    2. Bimetallic Alloy
    3. Magnetic Alloy
  • Copper Alloy
    1. Copper Manganese Alloy
    2. Copper Nickel Alloy
    3. Cu-Ni-Zn Alloy
  • Super-elastic Alloy
    1. High Electrical Conductivity Super-elastic Alloy
    2. Corrosion Resistant Super-elastic Alloy
    3. Ni-Span-C Alloy 902
  • Transformer Core Alloy
    1. Amorphous Alloy
    2. Nanocrystalline Alloy
  • Pure Metal
    1. Copper Strip
    2. Nickel Strip
  • Insulated Resistance Wire
    1. PFA Insulated Resistance Wire
    2. PTFE Insulated Resistance Wire
    3. Fiberglass Insulated Resistance Wire
    4. Insulated Coating Resistance Wire
    5. PVC Insulated Resistance Wire
    6. Silicone Insulated Resistance Wire
  • Thermal Spray Wire
  • Welding Wire
    1. Nickel Alloy Welding Wire
    2. Silver Alloy Welding Wire
  • RTD Cable
Tags
constantan thermocouple wire emf value thermocouple temperature sensing wire high sensitivity thermocouple
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