What is the role of seamless calcium wire in metallurgical industry?
Seamless calcium wire is an important material in the metallurgical industry, mainly used in steel treatment and alloying process. It improves the properties of steel, purifies steel, controls inclusions and improves the quality of steel by adding calcium to the steel. Detailed description of the role of seamless calcium wire in the metallurgical industry.
We also can supply other alloy core wire as following.
| Alloy Cored Wire Type | Diameter | Filling rate | Specification |
| CaSi Cored Wire | 9mm/13mm/16mm | 120/225/330 | Ca:30%min Si:55%min Al:1.5%max S:0.06%max C:1.0%max Fe:4%max P:0.05%max |
| CaFe Cored Wire | 9mm/13mm/16mm | 140/260/360 | Ca:30%min Fe:68%min Al:0.8%max |
| C Cored Wire | 9mm/13mm/16mm | 55/140/210 | C:98.5%min Ash:0.45%max V:0.4%max S:0.5%max H2O:0.3%max P:0.2%max |
| Pure Ca Cored Wire | 9mm/13mm | 58/155 | Ca:98.5%min Mg:0.5%max Al:0.5%max |
| Solid Ca Cored Wire | 9mm/10mm | 9mm/10mm | Ca:98.5%min Mg:0.5%max Al:0.5%max |
| FeS Cored Wire | 9mm/13mm | 220/370 | S:48%min Pb:0.1%max Zn:0.1%max As:0.1%max Fe:43%-45% Cu:0.05%max Moisture:0.5%max SiO2:2.5%max |
| CaAlFe Cored Wire | 9mm/13mm | 130/230 | Ca:40% Fe:30% Al:30% |
| Pure Mg Cored Wire | 9mm/13mm | 80/170 | Mg:99%min |
| SiBaCa Cored Wire | 9mm/13mm | 110/260 | Si:40%-50% Ba:10%-20% Ca:20%-30% |
| FeSi Cored Wire | 9mm/13mm | 150/350 | Si:75%min Fe:Balance |
Steel purification and deoxidation
In the steelmaking process, steel often contains oxygen, sulfur, phosphorus and other harmful elements, which will reduce the mechanical properties and processing performance of steel. The main component of seamless calcium wire is calcium, which is a strong deoxidizer and desulfurizer, able to react with oxygen and sulfur in steel to produce stable compounds.
Deoxidation
Calcium reacts with oxygen in steel to generate calcium oxide (CaO), which precipitates in solid form and floats up to the surface of the steel to form a slag layer, thus reducing the oxygen content in the steel. This process not only reduces oxide inclusions in the steel, but also improves the purity of the steel.
Desulfurization
Calcium reacts with sulfur to produce calcium sulfide (CaS), which has a high melting point and can easily precipitate out of the steel and enter the slag layer, thus reducing the sulfur content in the steel. This process is important for improving the toughness and crack resistance of steel.
Improve the processing performance of steel
seamless calcium wire by adding calcium elements, can significantly improve the processing performance of steel, especially in the cold rolling, hot rolling and forging processes such as performance is particularly prominent.
Improve ductility
The addition of calcium can reduce the brittle inclusions in steel, thus improving the ductility and plasticity of steel, so that it is not easy to crack during processing.
Improve surface quality
Calcium can reduce oxide inclusions in steel, thus reducing the defect rate on the steel surface and improving its surface finish and appearance quality.
