Made from burned magnesia or electric fused magnesia,High pressure forming,high-temperature 1600-1700°C sintering,MgO content is above 91%.
►Features
1.High refractoriness,usually the refractoriness is above 2000°C.
2.Refractoriness under load about 1500-1550°C because of poor high-temperature intensity.
3.Strong ability to resist basic (alkaline) slag,can not contact with acid refractory material.
4.Poor Thermal shock resistance,so keep the temperature of furnace stabilized.
5.Poor Volume stability at high temperature,must set aside appropriate expansion joint when laying brick.
6.Strong ability of thermal conductivity,sometime need insulating material.
7.Hydrability, keep product away from moisture during storage.
►Technical parameters
Item |
MZ-97 |
MZ-95 |
MZ-93 |
MZ-91 |
MgO % |
≥97 |
≥95 |
≥93 |
≥91 |
SiO2 % |
≤1.0 |
≤2.0 |
≤3.5 |
- |
CaO % |
- |
≤2.0 |
≤2.0 |
≤3.0 |
Apparent porosity/% |
≤16 |
≤16 |
≤18 |
≤18 |
Cold crushing strength/ Mpa |
≥60 |
≥60 |
≥60 |
≥60 |
Refractoriness under load, 0.2MPa, °C |
≥1700 |
≥1650 |
≥1620 |
≥1560 |
Reheating Linear Change(1650 °C,2h) /% |
0~-0.2 |
0~-0.3 |
0~-0.4 |
0~-0.4 |
►Application:
Widely used in steelmaking furnace lining;ferroalloy furnace,ferroalloy copper,nickel,lead,zinc,tin etc smelting furnace lining;building material industry lime kiln;glass industry regenerator checke,high temperature calcination kiln,shaft kiln and tunnel kiln.
►Delivery
Package Informations:
1. Packed in a 100cm*100cm fumigated wooden pallet with a waterproof plastic film cover, and tightened with plastic bandages.
2. We can also pack the goods according to your requirements.
Shipping:
1. FEDEX/DHL/UPS/TNT for samples.
2. By Sea for batch goods.
3. Customers specifying freight forwarders or negotiable shipping methods!
4. Delivery Time:3 days for common shape samples;15 days for special shape samples.Within 30 days for batch goods.