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Multi Strand J Thermocouple Wire 800 Degrees Celsius Fiberglass Insulation

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China Ohmalloy Material Co.,Ltd certification
China Ohmalloy Material Co.,Ltd certification
I search for Nichrome plate long time, and successfully bought it from Ohmalloy material. OHMALLOY provide real good service in alloy service and can always help me in finding the correct resistance alloy.

—— Mike Harness

OHMALLOY can provie me only 1kg Kovar alloy wire 1.0mm with short time, that is really amazing. Thanks

—— Janey

Really professional in thermocouple wire and cable, what i want just can get from OHMALLOY

—— Chris

Enamelled Constantan 0.08mm, i never expect to get only 2kg of it. But OHMALLOY supply it to me with good quality. God Jesus! Such a reliable supplier from china

—— Aaron

Multi Strand J Thermocouple Wire 800 Degrees Celsius Fiberglass Insulation

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Large Image :  Multi Strand J Thermocouple Wire 800 Degrees Celsius Fiberglass Insulation Get Best Price

Product Details:
Place of Origin: jiangshu
Brand Name: Ohmalloy/OEM
Certification: GB
Model Number: SP-J-FB-FB-0.5R
Payment & Shipping Terms:
Minimum Order Quantity: 100 meters
Price: USD 0.5~10/meter
Packaging Details: Spool+paper case + wooden case/plastic packing+papre case+ wooden box outside(or customized)
Delivery Time: 5-8 working days after payment confirmed
Payment Terms: L/C, T/T, , MoneyGram,paypal
Supply Ability: 10000 meter/day
Detailed Product Description
Name: Multi Strand Type J Thermocouple Cable 24AWG Conductor Material: JP: CuNi45 JN: Fe
Insulation Material: Fiberglass/PTFE/PEF/Silicone Rubber Jacket Material: Fiberglass/PTFE/PEF/Silicone Rubber/PVC
Diameter: 0.5R*2(7*0.30mm) Color: White And Black (customized)
Certificate: GOST/JIS/GB(customized)
High Light:

k type thermocouple cable


thermocouple bare wire

800 Degree Celsius Fiberglass Insulation Price Multi Strand Type J Thermocouple Cable 7x0.30mm 300 meter/roll 


TYPE J (Iron vs Constantan) is used in vacuum, oxidizing, inert or reducing atmospheres. Iron element oxidizes rapidly at temperatures exceeding 538'C, and therefore heavier gauge wire is recommended for longer life at these temperatures.


1. Product Details


1. Chemical Composition

Material Chemical composition (%)
Ni Cu Si Iron Al
JP(Iron)       100  
JN(Constantan) 45 55      


2. Physical Properties and Mechnical Properties








Melting point(℃)


Tensile Strength(Mpa)


Volume resistivity(μΩ.cm)


Elongation rate (%)

JP(Iron) 7.8 1402 >240 12.0(20℃) >20
JN(Constantan) 8.8 1220 >390 49.0(20℃) >25


3. EMF Value Range at Different Temperature


Material EMF value (μV)
100℃ 200℃ 300℃ 400℃ 500℃ 600℃













EMF value Vs Pt(μV)  
700℃ 750℃ 760℃ 800℃ 900℃ 1000℃  
38958~39306 42089~42473 42725~43113        


Type Insulation material CODE Inner Shielding CODE JACKET CODE Out shielding CODE Pairs solid Earth wire Stranded
K FEP FP     FEP FP     0 0.2mm E cross section+R
T PFA FA Al foil AL PFA FA copper wire CU 2 0.3mm    
E PVC 70℃ LP copper wire CU

PVC 70℃

LP Tinned copper TC 3 0.5mm    
J PVC 105℃ HP Tinned copper TC PVC 105℃ HP Nickel plated copper NC 4 0.75mm    
N Fiberglass 400℃ BL Nickel plated copper NC Fiberglass 400℃ BL Silver plated copper AC 5 1.0mm    



BM Silver plated copper AC



BM SS 304 wire SS 6 1.5mm    






  MICA FIBER 650℃ MA                    
KCA Vitreous Silica 800℃ VS SS 304 wire SS Vitreous Silica 800℃ VS     7 2.5mm    
KCB Silica fiber1000℃ SV Inconel 600 wire 600 Silica fiber1000℃ SV     8      
RTD Ceramic fiber1200℃ CF Inconel 625 wire 625 Ceramic fiber1200℃ CF     9      
  PTFE PT     PTFE PT            
  ETFE ET     ETFE ET            
  KAPTON KP     KAPTON KP            
  Silcone rubber SR     Silcone rubber SR            
  Rubber RU     Rubber RU            
  PE PE     PE PE            


Size and Insulation Material Reference
Type Cross-Section
Diameter Insulation Material/Jacket Material Shield
AWG (SingleCore) mm
SC RC BC KCA KCB KX NC NX EX JX LX 0.07 - 1 x 0.30 Ceramic Fiber(-60,+1200℃) Vitreous Silica(-60,+800℃) Mica(-60,+650℃) Silica Fiber(-60,+1000℃) High Temperature Fiber(-60,+600℃) Fiberglass(-60,+450℃) Polyimide Tape/Kapton(-60,+260℃) PTFE(-60,+275℃) PFA(-60,+275℃) FEP(-60,+205℃) Silicone Rubber(-60,+200℃) PVC(-25,+105℃) PVC(-25,+70℃) Nickel Chrome Alloy Wire Braiding; Stainless Steel Braiding; Tin-plated Copper Braiding; Aluminum-plastic Tape Wraping; Copper Tape Wraping; Aluminum Foil Wraping
0.22 24 7 x 0.20
0.35 22 5 x 0.30
0.40 21 13 x 0.20
0.50 20 7 x 0.30
0.50 20 19 x 0.20
0.75 19 7 x 0.37
0.75 19 24 x 0.20
1.00 18 14 x 0.30
1.00 18 24 x 0.20
1.34 16 7 x 0.49
1.34 16 19 x 0.30
1.50 16 7 x 0.52
1.50 16 21 x 0.30
2.00 14 19 x 0.366
2.00 14 28 x 0.30
2.50 13 19 x 0.41
2.50 13 36 x 0.30


Multi Strand J Thermocouple Wire 800 Degrees Celsius Fiberglass Insulation 0



2. Size Range Reference

Alloys Name Type Dimension
SP-J-W Wire D=0.03mm~8mm
SP-J-R Ribbon W=0.4~40 T=0.03~2.9mm
SP-J-S Strip W=8~250mm T=0.1~3.0
SP-J-F Foil W=6~120mm T=0.003~0.1
SP-J-B Bar Dia=8~100mm L=50~1000



3. Production Progress

-heating alloy.jpg




4. Our Service & Customer Representative



Multi Strand J Thermocouple Wire 800 Degrees Celsius Fiberglass Insulation 2


Multi Strand J Thermocouple Wire 800 Degrees Celsius Fiberglass Insulation 3

Multi Strand J Thermocouple Wire 800 Degrees Celsius Fiberglass Insulation 4

5. Questions and Answers


Q1:How can I contact with your company?

A1:We have multiple communication channels : Tel/ :+86-15826530281


Q2:Do you provide free samples?

A2:Yes,we can provide free samples for your testing,but buyer should bear the shipping costs.


Q3:What is your payment terms?

A3:30% in advance,balance after receiving the copy of B/L. T/T,L/C,,Paypal is OK.


Q4:What is your lead time?

A4:On normal condition,the lead time is 7 days after the payment. Special order or quantity is subject to the negotiation.



Q5:What is your working time?

A5: Monday to Firday: 9:00-12:00,13:30-17:30, rest in weekend.

Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Sparrow

Tel: +8617301606058

Send your inquiry directly to us