421 411 Silicon Metal Lump Block Si 99.4% Oxidation Resistance
421 411 Silicon Metal Lump Block Si99.4% Oxidation Resistance
Silicon Metal Description
Silicon Metal lump was produced in electric heating furnace by quartz and coke. Quartz will be redox and became molten silicon liquid. After cooling, it will be solid as we see. The primal silicon metal lump is very large. Then it will be made into smaller lumps which we call standard size. Silicon Metal Lumps will be 10-100mm.
Silicon metal is usually classified according to the content of Si, Fe, Al, Ca. Main types of silicon metal are 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101 etc.
Silicon Metal Specification
| Chemical Composition(%) | ||||
| Garde | Si | Fe | Al | Ca |
| ≥ | ≤ | |||
| 97# | 97 | 1.8 | 0.6 | 0.5 |
| 553 | 98.5 | 0.5 | 0.5 | 0.3 |
| 441 | 99.1 | 0.4 | 0.4 | 0.1 |
| 421 | 99.3 | 0.4 | 0.2 | 0.1 |
| 3303 | 99.37 | 0.3 | 0.3 | 0.03 |
Packing and shipping
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Q1: Are you a manufacture or trader?
A1: We are manufacture.
Q2: How are the products’ quality?
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Q3: How about your company's certification?
A3: ISO9001 and Test Report.
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A4: No limit,We can offer the best suggestions and solutions according to your condition.
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A5: The delivery time will be determined according to the quantity of the order.
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A6: Usually T/T,but L/C are available for us.
Q7: Do you provide samples?
A7: Yes, samples are available.
Q8: Can we visit your company?
A8: Sure,welcome at any time,seeing is believing.
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