manufactured · input
AZS (alumina-zirconia-silica) fused cast refractories, silica crown bricks, and checker refractories used to line glass melting furnaces. Furnace rebuild requires 6,000–15,000 tonnes of specialty refractory materials and 6–12 months of installation work. China produces 40% of global specialty refractories; RHI Magnesita (Austria) and Saint-Gobain (France) are major Western suppliers.
12
Source countries
4
Companies
1
Goods affected
0
Claims on record
What depends on it
1 essential American goods rely on refractory materials (furnace lining) somewhere upstream in their supply chain.
Who makes it
4 companies produce refractory materials (furnace lining).
Japan's largest refractory company; Nippon Steel subsidiary; produces magnesia-carbon bricks, high-alumina refractories, and monolithics for steel, glass, and cement industries. Kita-Kyushu Japan is primary production site; strong position in Japanese domestic market and export to Asian steel mills.
World's largest refractory materials producer, supplying ~35% of global steel industry refractory needs; controls key magnesite mines in Austria and Brazil; steel accounts for ~70% of global refractory consumption.
French multinational founded 1665; world's largest flat glass and building materials company. Operates 400+ industrial sites globally; major flat glass brands include SGG (construction glass) and Sekurit (automotive glass). Also makes high-performance materials, gypsum (Gyproc/CertainTeed), and insulation.
UK-listed global refractory and molten metal flow control company; ~£1.8B revenue; produces continuous casting refractories (slide gates, nozzles, stopper rods) and steel plant ceramics. Flow control is Vesuvius's specialty — the nozzles that control molten steel flow from ladle to tundish to mold in continuous casting.
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