Characteristics

MTM is a medium temperature powder with light silicone treatment. Mainly used in air heating elements of medium wattage loading. Elements stuffed with this material are proposed to be annealed at 420 for 15 minutes.

Chemical Analysis

MgO	CaO	Al2O2	Fe2O3	SiO2
94.0	1.5	0.9	0.5	2.5

Particle Distribution

Mesh	+40	+60	+80	+140	+200	+325	-325
Dia(um)	+425	+250	+180	+106	+75	+45	-45
Quantity(%)	0-1	26-38	16-24	18-28	6-14	8-14	0-8

Tap Density

2.30-2.40g/cm3

Flow

Ford Cup No.3(2.165mm-2.185mm):150-220s/100g

Ford Cup No.4(3.97mm-4.01mm):32-38s/100g

Electrical Property

Testing condition(straight tube adjusting voltage)

Tube……SUS304

Reduction……8.0mm>6.6mm

Wire……Ni80Cr20 ,0.35mm

Helix……2.3mm

Heated Length……430.0cm-45.0cm

Energized period ……15mins

Remark: :for user's reference , the chart here shows typical values of performance by this type of powder.

Packing

25Kg in a plastic woven bag. Special packing is available on requirements.

Security and Storage

Electrical Grade Magnesium Oxide is non-toxic, but with some dust. Masks and gloves are proposed to use during operation.

Electrical Grade Magnesium Oxide should be stored in dry places, and are suggested to be used out within 12 months after delivery,