MgO for Mineral Insulated Cable

Category：Magnesium Oxide for Mineral Insulated Cables
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Release time：2026-09-07 09:10:12

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Product description

MgO for Mineral Insulated Cable

This product is primarily used for mineral insulated cables and BTTZ fire‑proof cables. BTTZ fire‑proof cables maintain acceptable insulation level after being exposed to 950℃ high temperature for 3 hours with water spray and impact testing. Particle size distribution can be customized to meet customer requirements.

● Chemical Analysis (%)

Grade Composition	MgO	CaO	Fe₂O₃	SiO₂	Al₂O₃	LOI
ZSMF‑1	≥95.0	≤2.0	≤0.8	≤1.5	≤1.0	≤0.3

● Physical Properties

Grade	Flow Rate (s/100g)	Flow Time (s/100g)	Tap Density (g/cm³)
ZSMF‑1	150‑190	33‑40	2.0‑2.3

● Particle Size Distribution

Mesh	+60	+70	+80	+100	+150	+200	+325	-325
Particle Size(μm)	+280	+212	+180	+154	+100	+71	+46	-46
Value (%)	0‑1	15‑25	20‑30	3‑10	25‑35	10‑20	3‑10	0‑3

● Electrical Properties

Leakage current 0.2mA max at the surface loading of 5W/cm².

● Test Conditions

1.Tube Material: SUS304, length of 450mm
2.Wire Material: Ni80Cr20, Φ0.25mm, spiral Φ2.5mm
3.Rolling: Φ8.0mm→Φ6.6mm
4.Effective Heating Length: 410‑440mm
5.Power on Time:20min

● Packaging

25kg in a woven bag or carton box. Special Package is available on requirements.

● Usage and Storage Instructions

1. This product is coated with silicone.
2. Electrical grade MgO powder is non‑toxic, but with some dust. It is recommended to wear anti‑dust respirators and gloves during operation.

3.Electrical‑grade magnesium oxide powder should be stored in a well‑ventilated, dry area away from direct sunlight. It is recommended to use the product within 12 months after delivery.

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Yingkou Songliao Magnesium Industry Co., Ltd

MgO for Mineral Insulated Cable

MgO for Mineral Insulated Cable

● Chemical Analysis (%)

● Physical Properties

● Particle Size Distribution

● Electrical Properties

● Test Conditions

● Packaging

● Usage and Storage Instructions

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