OHMALLOY
OhmAlloy104B
(Common Name:Ni30Cr20,Nikrothal 30, N3, HAI-NiCr 30, Resistohm 30,30-20 Ni-Cr,Nikrothal 3.)
OhmAlloy104B is a nickel-chromium alloy (NiCr alloy) characterized by High resistivity, good oxidation resistance,very good form stability,good ductility and excellent weldability. It is suitable for use at temperatures up to 1100°C.
Typical applications for OhmAlloy104B are used in olid hot plates,open coil heaters in HVAC systems,night-storage heaters,convection heaters,heavy duty rheostats and fan heaters. And also used for heating cables and rope heaters in defrosting and de-icing elements,electric blankets and pads, car seats,baseboard heaters,floor heaters and resistors.
Normal composition%
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max |
| 0.08 | 0.02 | 0.015 | 1.00 | 1.0~2.0 | 18.0~21.0 | 30.0~34.0 | - | Bal. | - |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 340 | 675 | 35 |
Typical Physical properties
| Density (g/cm3) | 7.9 |
| Electrical resistivity at 20ºC(Om*mm2/m) | 1.04 |
| Conductivity coefficient at 20ºC (WmK) | 13 |
| Coefficient of thermal expansion |
| Temperature | Coefficient of Thermal Expansion x10-6/ºC |
| 20 ºC- 1000ºC | 19 |
| Specific heat capacity |
| Temperature | 20ºC |
| J/gK | 0.50 |
| Melting point (ºC) | 1390 |
| Max continuous operating temperature in air (ºC) | 1100 |
| Magnetic properties | non-magnetic |
Temperature Factors Of Electrical Resistivity
| 20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC |
| 1 | 1.023 | 1.052 | 1.079 | 1.103 | 1.125 | 1.141 |
| 700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1200ºC | 1300ºC |
| 1.158 | 1.173 | 1.187 | 1.201 | 1.214 | 1.226 | - |
Style of supply
| Alloys Name | Type | Dimension | |
| OhmAlloy104BW | Wire | D=0.03mm~8mm | |
| OhmAlloy104BR | Ribbon | W=0.4~40mm | T=0.03~2.9mm |
| OhmAlloy104BS | Strip | W=8~250mm | T=0.1~3.0mm |
| OhmAlloy104BF | Foil | W=6~120mm | T=0.003~0.1mm |
| OhmAlloy104BB | Bar | Dia=8~100mm | L=50~1000mm |
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.