Stainless and special steel
Above about 10.5% chromium, steel forms the film that makes it stainless.
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Chromium metal
Metallurgical grade chromium metal for use in metallurgy, casting, vacuum smelting and alloy addition. Ultra-low impurity control and customised chemistry are available on request.
- Grade / purity
- Cr ≥ 98.0–99.5%
- Standard
- Metallurgical grade
- Form
- Blocks, granules, powder
Applications
Metallurgy and casting
A chromium unit for melts that cannot take the carbon ferrochrome brings.
Vacuum smelting
Low-gas grades for vacuum melting, where oxygen and nitrogen become defects.
Alloy addition
The chromium in nickel and cobalt alloys, and in hardfacing and welding metal.
Specification
| Element | Typical (wt%) | Element | Typical (wt%) |
|---|---|---|---|
| Cr | ≥ 98.0 – 99.5 | C | ≤ 0.05 – 0.10 |
| Si | ≤ 0.03 – 0.05 | S | ≤ 0.005 – 0.02 |
| P | ≤ 0.005 – 0.02 | Fe | ≤ 0.2 – 0.5 |
| Category | Size | Description |
|---|---|---|
| Chromium blocks | 10 – 50 mm | Small pieces, for general metallurgical additives |
| 20 – 80 mm | Most common metallurgical grade; suitable for medium-frequency and induction furnaces | |
| 30 – 100 mm | Large pieces, for smelting or vacuum metallurgy | |
| 50 – 150 mm | For high-frequency power or large furnace applications | |
| 50 – 200 mm | Heavy weight, high density; suitable for special smelting processes | |
| Chromium granules | 1 – 3 mm | Fine particles, for precise alloying |
| 3 – 6 mm | General grade, good flowability | |
| 5 – 10 mm | Large particles, stable at high temperatures | |
| 8 – 15 mm | Special alloys or spraying applications | |
| Chromium powder | ± 200 mesh | Industrial powders |
| ± 325 mesh | Chemical applications and powder metallurgy | |
| ± 400 mesh | High-precision materials |
