Excellent Oxidation Resistance Calcium Silicon
The calcium silicon alloy is a kind of composed of the elements such as silicon, calcium, and iron metal alloy, with excellent oxidation resistance, widely used in steel smelting, casting and other metal processing field.
Description
Description
Excellent oxidation resistance calcium silicon.One of the reasons for the excellent oxidation resistance of Si-Ca alloy is that it can undergo oxidation reaction at high temperature, forming a dense oxide film, which slows down or prevents further oxidation reaction. When the silicon calcium alloy is exposed to oxygen at high temperatures, the silicon on the surface of the silicon calcium alloy will react with oxygen to form a dense silica film, which can effectively isolate the contact between oxygen and the alloy, thereby preventing the alloy from being further oxidized. In addition, the calcium element in the silicon calcium alloy can form a calcium oxide film with oxygen, which has high stability and can effectively improve the oxidation resistance of the alloy.
Specification
Calcium Silicon information
| Chemical Composition | |
|---|---|
| Silicon (Si) | 55% - 65% |
| Carbon (C) | 4% - 5.5% |
| Iron (Fe) | 1% max. |
| Aluminum (Al) | 2% max. |
| Calcium (Ca) | 1% max. |
| Manganese (Mn) | 0.5% max. |
| Phosphorus (P) | 0.05% max. |
| Sulfur (S) | 0.05% max. |
| Physical Properties | |
|---|---|
| Density | 2.1 - 2.3 g/cm3 |
| Melting point | 1414°C - 1420°C |
| Boiling point | 2355°C |
| Thermal conductivity | 120 - 150 W/mK |
| Electrical conductivity | 20 - 40% IACS |
| Specific heat capacity | 0.7 - 0.8 J/gK |
Excellent oxidation resistance calcium silicon.The silicon calcium alloy surface can also be coated with a protective layer to increase the stability of the oxide film, such as coating polymer, alumina, etc. The surface treatment of Si-Ca alloy is also one of the important reasons for its excellent oxidation resistance.The surface of Si Ca alloy generally needs certain treatment, such as mechanical processing, electrochemical polishing, sandblasting, etc., to increase the surface roughness, thereby increasing the contact area between the alloy and oxygen and improving the antioxidant capacity.
FAQ
Q: What kind of payments do you support?
A: T/T, L/C, Cash are accepted.
Q: How can I get some samples and how long will it take?
A: For small quantity sample, it is free, but the air freight is collect or pays us the cost in advance, we usually use International Express, and we will ship it to you after receipt of your charge.
Q: Can you produce according to customers' design?
A: Sure, we are professional manufacturer.
Q: How about the quality?
A: From raw materials' selecting, smelting, crushing, finished products' testing, packing, to pre-shipment inspecting, every step, Zhenan people are all implementing strict quality control.
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