TOPHET® A Wire and Strips
Authorized supplier of comprehensive range of TOPHET® A wire and Strips, Look for TOPHET® A Wire and Strips best price your source for TOPHET® (Brand)
Grand Metal Corporation is acknowledged as an authorized exporter & suppliers of TOPHET® A Wire and Strips, available in a variety or grades, materials, and finishes as full line distributor.also caries other brand range of resistance wire.
Nominal Composition
| Carbon |
15% Max |
| Manganese |
5% Max |
| Sulfur |
0.1% Max |
| Silicon |
0.5-1.5% Max |
| Chromium |
19-21% |
| Nickel (+Cobalt) |
77-79% |
| Iron |
1.0% Max |
Tophet "A" is a nickel-chromium resistance alloy for operating temperatures up to 2150° F. It is non-magnetic, highly corrosion resistant and has a lower coefficient of resistance than other heater element alloys. Typical Applications for the material include flat irons, ironing machines, quartz tube heaters, cartridge elements, etc. The lack of reactivity to MgO refractories make it the most suitable alloy for enclosed heater elements especially in higher temperature ranges.
Typical Mechanical Properties
| Ultimate Tensile Strength |
| Hard Temper |
200,000 PSI |
| Stress Relieved |
175,000 PSI |
| Annealed |
100,000 PSI |
Modulus of Elasticity
(x 10e6 PSI) |
31 |
| Magnetic Response |
Non-magnetic |
Typical Physical Properties
| Density |
.304 lbs/cu in |
| Melting Point |
2552° F Approximately |
| Specific Gravity |
8.41 |
| Electrical Resistivity @ RT |
650 ohm/cir mil/ft |
| Thermal Expansion Coefficient |
| 70-200°F |
7.3 x 10-e6 |
| 201-1500°F |
9.6 x 10-e6 |
| Thermal Conductivity |
0.113 W/cm/°C |
Contact Grand Metal Corporation today for a best offer & competitive quotation…
Call: +91 98927 02393, 97690 58811
Email: grandmetalcorporation@gmail.com
