Abrasives: Overview
The hidden tools behind every finished surface
What this tab covers What the commodity is used for, why, in what volumes and with what alternatives, and its chain from mine or field to end user. Also the latest price moves, top recent news, three things to know, and buttons into each tab.Key uses
| Use | Share | Annual volume | Why this commodity | Alternatives |
|---|---|---|---|---|
| Bonded abrasives (grinding and cutting wheels) | n/a | n/a basis | Fused aluminium oxide is very hard and tough and cheap to make from bauxite, so it is the workhorse grain for grinding steel. Silicon carbide is harder and sharper, so it suits cast iron, stone, glass and non-ferrous metals. USGS MCS 2026, Abrasives (Manufactured) | Natural abrasives: emery, garnet, staurolite Superabrasives: synthetic diamond and cubic boron nitride (for hard materials) |
| Coated abrasives (sandpaper, belts, discs) | n/a | n/a basis | Graded grains glued to paper, cloth or film give controlled finishing for wood, metal, auto body and furniture work. Aluminium oxide dominates on wood and metal; silicon carbide on paint, glass and stone. USGS MCS 2026, Abrasives (Manufactured) | Garnet (woodworking) Emery Ceramic alumina grains |
| Blast cleaning and shot peening (steel shot and grit, cut wire) | n/a | about 180,000 t of metallic abrasives in the USbasis | Steel shot and grit are recycled many times in blast machines, so cost per tonne of cleaned steel is low. They strip scale and rust before painting, harden spring and gear surfaces by peening, and cut stone. USGS MCS 2026, Abrasives (Manufactured) | Garnet and staurolite blasting media Fused alumina grit Slag abrasives |
| Refractories and metallurgy (alumina and silicon carbide grains) | n/a | n/a basis | The same fused alumina and silicon carbide grains resist heat, slag and thermal shock, so refractory makers use them in castables, bricks and kiln furniture. New brown fused alumina plants outside China were a 2026 refractory industry theme (IMFORMED). IMFORMED, Oct 2026 (ICR26 conference report) | Tabular and calcined alumina Refractory bauxite Mullite and andalusite |
| Silicon carbide for power electronics and wire saws | n/a | n/a basis | Silicon carbide inverters let electric cars such as the Tesla Model 3 run longer and charge faster. Norwegian plants make silicon carbide partly from Scottish Lochaline sand (Conway). Silicon carbide wire saws also slice silicon boules into wafers. Conway, Material World (2023) | Silicon power devices (cheaper, less efficient) Gallium nitride devices Diamond wire saws |
From mine to user
- Raw materials Bauxite or Bayer alumina for fused alumina; silica sand and petroleum coke for silicon carbide; steel scrap for metallic shot and grit.
- Furnace synthesis Electric arc furnaces fuse alumina; Acheson resistance furnaces react sand and coke into silicon carbide; world capacity was 1.3 Mt fused alumina and 1.0 Mt silicon carbide in 2025 (USGS).
- Crushing and grading (crude to grain) Crude lumps are crushed, cleaned and sized into grits; ground and refined fused alumina imported into the US averaged $1,500/t vs $699/t for crude (2025, USGS).
- Abrasive product manufacture Grains are bonded into wheels or glued onto backings by makers such as Saint-Gobain, Carborundum Universal and Grindwell Norton.
- Industrial use Wheels, belts and blast media are consumed in automotive, aerospace, steel, furniture and housing work (USGS).
- Recycling Up to 30% of fused alumina and about 5% of silicon carbide may be recycled (USGS); steel shot is reused many times in blast machines.
Price movement snapshot 2026-10-25
No public daily or monthly benchmark price for this commodity in the datasets used.
Three things to know
- China holds about 800,000 t of the world's 1.3 million t of fused aluminium oxide capacity.
- China supplied 97% of US crude silicon carbide imports over 2021-24.
- US net import reliance for fused aluminium oxide has exceeded 95% every year since 2021.
Top recent news snapshot 2026-10-25, last 30 days
No recent articles from the listed publishers were found in the snapshot.