Silicon Metal 753
Products Description
Silicon Metal 753 is the pragmatic choice for cost-conscious buyers who need dependable silicon performance without paying for 553/441-level purity. Smelted from high-quality quartz and carbon reductants in submerged arc furnaces, then crushed and screened to strict size tolerances.
product specification
|
Element |
Silicon Metal 753 (Our Typical Spec) |
Si97 Reference |
Silicon Metal 553 (ref) |
|---|---|---|---|
|
Si (%) |
≥ 97.0 |
≥ 97.0 |
≥ 98.7 |
|
Fe (%) |
≤ 0.7 |
≤ 1.8 |
≤ 0.5 |
|
Al (%) |
≤ 0.5 |
≤ 0.6 |
≤ 0.5 |
|
Ca (%) |
≤ 0.3 |
≤ 0.4 |
≤ 0.3 |
Particle Size
Standard lump sizes: 10-50mm, 10-80mm, 10-100mm (90% min on-size)
Large lump: 50-100mm, 50-150mm (for specific furnace charging)
Granules: 1-6mm, 2-15mm (for precision dosing)
Powder: 0-1mm, 0-2mm, 0-10mm, 40-100 mesh (for chemical synthesis)
Custom sizing: Tailored to your furnace type, reactor, or alloying process
Quality: Uniform particle distribution, low fines, no surface cracking or oxidation
Our Company
FAQ
Q1: What does "753" mean in Silicon Metal 753?
A: Following industry naming convention, the digits represent maximum impurity content in parts per thousand: 7 = Fe≤0.7%, 5 = Al≤0.5%, 3 = Ca≤0.3%. Si is ≥97%. This places 753 between Si97 (Fe≤1.8%, Al≤0.6%) and 553 (Fe≤0.5%, Al≤0.5%) in the purity hierarchy.
Q2: How is 753 different from 553 and 441?
A: 753 has Si ≥97% with Fe≤0.7%, Al≤0.5%; 553 has Si ≥98.7% with Fe/Al ≤0.5%; 441 has Si ≥99.1% with Fe/Al ≤0.4% . 753 is more economical, ideal for applications where ultra-high purity isn't critical - aluminum casting, general steel deoxidation, and commodity silicones.
Q3: Can you guarantee the composition?
A: Yes. Every batch is spectrographically tested and comes with MTC showing actual Si, Fe, Al, Ca values. Si fluctuation within ±1%, Fe/Al within ±0.1%. Pre-shipment SGS/BV inspection welcome.
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