About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Company News
Home ProductsNichrome Alloy

High Temperature Nichrome Alloy Ni-Cr-Fe 70/30 Superior Oxidation Resistance

I'm Online Chat Now
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

High Temperature Nichrome Alloy Ni-Cr-Fe 70/30 Superior Oxidation Resistance

small.img.alt small.img.alt small.img.alt

Large Image :  High Temperature Nichrome Alloy Ni-Cr-Fe 70/30 Superior Oxidation Resistance Get Best Price

Product Details:
Place of Origin: China(Shanghai)
Brand Name: OHMALLOY
Certification: ISO,SGS
Model Number: 7030S118B
Payment & Shipping Terms:
Minimum Order Quantity: 5kg
Price: negotiable
Packaging Details: Plastic packing inside, wooden box outside , choose the suitable packing, Alos it can be customized by the clients' demand.
Delivery Time: 10-15 working days after your received deposit
Payment Terms: T/T, , L/C
Supply Ability: 80000Kg/Week
Detailed Product Description
Resistivity: 1.18μΩ.m Surface: Bright
Density: 8.2 (g/cm3) Working Temperature: 1250℃
Tensile Strength: 820 Mpa Yeild Strength: 430 Mpa
High Light:

nichrome wire


nichrome resistance wire

Superior oxidation resistance Ni-Cr-Fe 70/30 High Temperature Nichrome Alloy


Common Name: Ni70Cr30, Nikrothal70, N7, HAI-NiCr70, Chromel70/30, Resistohm70, 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 -

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 20ºC(ohm mm2/m) 1.18
Conductivity coefficient at 20ºC (WmK) 14

Coefficient of thermal expansion

Temperature Coefficient of Thermal Expansion x10-6/ºC
20 ºC- 1000ºC 17

Specific heat capacity

Temperature 20ºC
J/gK 0.46


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

Temperature Factors Of Electrical Resistivity

20ºC 100ºC 200ºC 300ºC 400ºC 500ºC 600ºC
1 1.007 1.016 1.028 1.038 1.044 1.036
700ºC 800ºC 900ºC 1000ºC 1100ºC 1200ºC 1300ºC
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=0.03~0.1
OhmAlloy118B Bar Dia=8~100mm L=50~1000

1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you want.
If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.

2. How can you pay for small sample amount?
We have account, wire transfer for sample amount also ok.

3. Customer do not have express account. How will us arrange the delivery for sample order?
Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.

4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.

5. Do you provide free samples?
If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.

6. What's our working time?
We will give you reply through email/phone Online contact tool within 24 hours. No matter working day or holidays.


Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Sparrow

Tel: +8617301606058

Send your inquiry directly to us