SEW 395 Grade G-X2CrNiMnMoNNb21-16-5-3 solution heat-treated and quenched
SEW 395 Grade G-X2CrNiMnMoNNb21-16-5-3 solution heat-treated and quenched introduction
The fully austenitic material G-X 2 CrNiMnMoNNb 21 16 5 3, with the material number 1.3964 according to SEW 395-87 (invalidly replaced by GX2CrNiMnMoNNb21-16-5-3, material number 1.3967 according to SEW 395-98), possesses a defined low value of the relative magnetic permeability of 1.01 maximum (for castings with a wall thickness of up to 50 mm). It is applied for construction components which an interference or shielding of a magnetic field must not occur at. In the process of cutting machining, attention has to be paid to the fact that, unlike chromium-nickel cast steel grades, manganese-alloyed grades have a tendency to a stronger strain hardening.
(SEW: steel-iron material specification)
SEW 395 Grade G-X2CrNiMnMoNNb21-16-5-3 solution heat-treated and quenched general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.9 g/cm³ |
SEW 395 Grade G-X2CrNiMnMoNNb21-16-5-3 solution heat-treated and quenched thermal
| Property |
Temperature |
Value |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.57E-5 1/K |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.7E-5 1/K |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.75E-5 1/K |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 14 W/(m·K) |
SEW 395 Grade G-X2CrNiMnMoNNb21-16-5-3 solution heat-treated and quenched chemical
| Property |
Value |
| Carbon |
Carbon of 0.03 % |
| Chromium |
Chromium of 20 - 21.5 % |
| Manganese |
Manganese of 4 - 6 % |
| Molybdenum |
Molybdenum of 3 - 3.5 % |
| Nickel |
Nickel of 15 - 17 % |
| Niobium |
Niobium of 0.25 % |
| Nitrogen |
Nitrogen of 0.2 - 0.35 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 1 % |
| Sulfur |
Sulfur of 0.01 % |
SEW 395 Grade G-X2CrNiMnMoNNb21-16-5-3 solution heat-treated and quenched electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 8.1E-7 Ω·m |
SEW 395 Grade G-X2CrNiMnMoNNb21-16-5-3 solution heat-treated and quenched mechanical
| Property |
Temperature |
Value |
| Elongation |
20.0 °C |
Elongation of 20 % |
| Tensile strength |
20.0 °C |
Tensile strength of 570 - 800 MPa |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 315 MPa |
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