*Similar Grade
GB | JIS | ASTM | SW | DIN | W.Nr | ГОСТ |
1Cr25Ni20Si2 | SUH310 SUH314 | Nichrome 20 SS310 | Nikrothal 20 | CrNi 25 20 20X15CrNiSi25 | 1.4843 | - |
*Specification
GB/T 1221-2007, JIS C2520-1999, ASTM B344-01, DIN 17470/17471-1984, ГОСТ 12766.1/2-1990
*Product Forms
Wire, Mesh, Conveyor, Rod, Bar, Ribbon, Strip, Tape, Plate, Sheet, Tube and etc.
*Brief
1Cr25Ni20Si2 is an austenitic nickel-chromium alloy (NiCr alloy) for use at temperatures up to 1000°C. Due to its special composition this alloy is suitable for case-hardening furnaces. Stainless, high power traction and braking resistances.
*Chemical Composition, %
Alloy | C | P | S | Mn | Si | Cr | Ni | Al | Fe |
1Cr25Ni20Si2 | ≤0.02 | ≤0.035 | ≤0.03 | ≤1.50 | 1.50-2.50 | 24.0-27.0 | 18.0-21.0 | - | Rest |
*Physical Properties
Max working temperature, ℃ | 1050 | Specific heat, J/g.℃ | 0.54 |
Melting point, ℃ | 1300 | Thermal conductivity, KJ/m.h℃ | 43.8 |
Density, g/cm3 | 7.9 | Coefficient of lines expansion, α×10-6/℃ (20-1000℃) | 19 |
Resistivity, μΩ·m 20℃ | 1.04±0.05 | Micrographic structure | Austenite |
Elongation, % | ≥30 | Magnetic properties | Weak magnetic |
*Feature
It has high temperature strength and oxidation resistance, and is sensitive to sulfur atmosphere. Not suitable for permanent temperatures between 600℃, because of a tendency to become brittle due to the sigma-phase.
*Application
1Cr25Ni20Si2 is used as electric components in domestic appliances and other electric heating equipment. It has good ductility after long time usage, good mechanical property at high temperature and good weldability.
1. High temperature furnace tubes.
2. Heating furnace rollers.
3. Combustion chamber components.
