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Bright Surface Nichrome Resistance Wire High Temperature Ni70Cr30

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China Ohmalloy Material Co.,Ltd certification
China Ohmalloy Material Co.,Ltd certification
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—— 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

Bright Surface Nichrome Resistance Wire High Temperature Ni70Cr30

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Large Image :  Bright Surface Nichrome Resistance Wire High Temperature Ni70Cr30 Get Best Price

Product Details:
Place of Origin: China(Shanghai)
Brand Name: OHMALLOY
Certification: ISO,Rohs
Model Number: OhmAlloy118
Payment & Shipping Terms:
Minimum Order Quantity: 5KG
Price: negotiable
Packaging Details: 7-20 working days after your received deposit
Delivery Time: 7-10 days
Payment Terms: L/C, T/T, , MoneyGram
Supply Ability: 50 Tons per month
Detailed Product Description
Material: Ni70Cr30 Density (g/cm3): 8.2
Electrical Resistivity At 20℃(Ωmm2/m): 1.18 Elongation: 30%
Surface: Bright Working Temperature: 1250℃
Enamelled: Available
High Light:

nichrome wire


nichrome resistance wire

(Common Name: Ni70Cr30, Nikrothal 70, N7, HAI-NiCr 70, Chromel 70/30, Resistohm 70, Balco,Tophet 30,Cronix 70,Alloy 710,Stablohm 710)


OhmAlloy118 is a nickel-chromium alloy (NiCr alloy) characterized byHigh resistivity, good oxidation resistance,very good form stability,good ductility and excellent weldability. It is suitable for use at temperatures up to 1250°C.

Typical applications for OhmAlloy118 are used in electrical heating elements in industrial furnace,and well suited for reducing atmospheres.

Normal composition%


C P S Mn Si Cr Ni Al Fe Other
0.05 0.02 0.015 0.60 0.75~1.60 28.0~31.0 Bal. Max 0.50 Max 1.0 -

Bright Surface Nichrome Resistance Wire High Temperature Ni70Cr30 0
Typical Mechanical properties(1.0mm)

Yield strength Tensile Strength Elongation
Mpa Mpa %
430 820 30


Typical Physical properties

Density (g/cm3) 8.2
Electrical resistivity at 20℃(Ωmm2/m) 1.18
Conductivity coefficient at 20℃ (WmK) 14




Coefficient of thermal expansion
Temperature Coefficient of Thermal Expansion x10-6/℃
20 ℃- 1000℃ 17


Specific heat capacity
Temperature 20℃
J/gK 0.46


Melting point (℃) 1380
Max continuous operating temperature in air (℃) 1250
Magnetic properties non-magnetic


Temperature Factors Of Electrical Resistivity

20℃ 100℃ 200℃ 300℃ 400℃ 500℃ 600℃
1 1.007 1.016 1.028 1.038 1.044 1.036
700℃ 800℃ 900℃ 1000℃ 1100℃ 1200℃ 1300℃
1.03 1.028 1.029 1.033 1.037 1.043 -


Style of supply

Alloys Name Type Dimension  
OhmAlloy118W Wire D=0.03mm~8mm  
OhmAlloy118R Ribbon W=0.4~40 T=0.03~2.9mm
OhmAlloy118S Strip W=8~250mm T=0.1~3.0
OhmAlloy118F Foil W=6~120mm T=0.003~0.1
OhmAlloy118B Bar Dia=8~100mm L=50~1000


Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Mr. Qiu

Tel: +8613795230939

Send your inquiry directly to us