OHMALLOY
OhmAlloy118
(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 |
| Max |
| 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(Om*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=0.003~0.1 |
| OhmAlloy118B |
Bar |
Dia=8~100mm |
L=50~1000 |
FAQ
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 Western union 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.
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