High Temp. MgO GSM1A
● Features
GSM1A is high temperature MgO powder, mainly used in air heating elements, such as grill and oven heating elements. It can stand 1050℃ heating treatment. Immediate sealing is required after annealing.
● Chemical Analysis
| Composition | MgO | CaO | Fe2O3 | Al2O3 | SiO2 |
| Value (%) | ≥97.0 | ≤1.1 | ≤0.45 | ≤0.9 | ≤2.0 |
*The properties are the typical values and not the guaranteed values.
● Physical Properties
| Flow Rate | Tap Density | Particle Size Distribution |
| 160±20s/100g | 2.28～2.41g/cm3 | 50～325 |
● Particle Size Distribution
| Mesh | +50 | +60 | +80 | +100 | +150 | +200 | +325 | -325 |
| Particle Size (μm) | +355 | +280 | +180 | +154 | +100 | +71 | +46 | -46 |
| Value (%) | 0～10 | 16～28 | 26～38 | 2～10 | 14～26 | 10～20 | 1～9 | 0～3 |
● Electrical Properties
GSM1A（MgO≥97%）
● Test Condition
Material: SUS304
Rolling: ɸ8.0mm→ɸ6.6mm
Core rod：Ni80Cr20，Φ0.3mm
Effective Heating Length: 43.0-47.0cm
Cold Insulation Resistance: 28Ω-33Ω
Power on Time：15min
*The properties are the typical values and not the guaranteed values.
● Packaging
25Kg in a woven bag. Special Package is available on requirements.
● Remarks
1. GSM1A is treated without silicone or treated with pretty light silicon oil.
2. GSM1A is mainly used in air heating with wattage loading less than 10W/cm2.
3. Electrical grade MgO powder is non-toxic, but with some dust. It is recommended to wear anti-dust respirators and gloves during operation.
4. The elements can stand 1050℃ annealing for 15-30 minutes and requires immediate sealing.
5. Electrical grade MgO powder should be stored in dry places, and best used within 6 months after delivery.
