Durable CaFe Cored Wire For Alloy Production
Products Parameters
| Grade | Chemical Composition (%) | |
| Ca | Fe | |
| Min | Max | |
| CaFe | 30 | 70 |
| Diameter: 13+/-0.5mm | ||
| Thickness of steel belt: 0.4mm | ||
| Weight of steel belt: 170±10 g/m | ||
| Weight of powder: ≥250g/m | ||
| Weight of line: 410-430 g/m | ||
| Net weight: 1.5 tons/volume | ||
| Lengthen: 3600-3750m/volume | ||
| Spool size: The inner diameter: 590-600mm, The extra diameter: 1200-1300mm, Height: 640mm. | ||
| The specification and packaging can be produced according to the customer's requirements. | ||
Products Description
In the field of steel production, CaFe Cored Wire plays a pivotal role and is a key material for improving steel quality. It is a cored wire made by wrapping calcium metal powder with a certain proportion of iron powder in a steel strip. This unique structural design allows it to play a precise role in the steelmaking process.
Calcium iron cored wire is mainly used for refining low carbon, ultra-low carbon, low silicon steels, and pure steels with strict requirements on the form and quantity of inclusions. Its working principle is based on the properties of calcium and iron. Calcium is an active element in it, and it has a strong affinity for oxygen and sulfur. During steelmaking, calcium iron cored wire is fed into molten steel, and calcium reacts rapidly with oxygen and sulfur in the molten steel. Calcium combines with oxygen to form calcium oxide (CaO), and combines with sulfur to form calcium sulfide (CaS). These reaction products have a low density and will gradually float to the surface of the molten steel and be removed in the form of slag, thereby achieving the purpose of deoxidation and desulfurization, reducing the content of harmful impurities in the steel and improving the purity of the steel.
At the same time, calcium iron cored wire can also effectively improve the morphology of inclusions in steel. When calcium treatment is not used, the inclusions in the steel may be long strips or irregular shapes, which will affect the performance of the steel, especially the anisotropy. Calcium reacts with inclusions such as alumina in the molten steel, which can cause them to transform into spherical or nearly spherical forms and evenly distribute in the steel. This change in morphology and distribution significantly improves the transverse impact toughness, plasticity and hot working properties of the steel, making the steel more stable and reliable during processing and use. For example, the application of calcium iron cored wire is particularly important in the production of deep drawn steel, certain special steels (such as calcium-containing stainless steel, calcium-containing gear steel) and steel grades with specific requirements for physical properties. It can avoid the formation of long strips of sulfide impurities, improve the anisotropy of steel, and ensure that the steel meets the use requirements of special fields.
In short, calcium iron cored wire has become an indispensable and important material in modern steel production due to its unique functions of deoxidation, desulfurization, improvement of inclusion morphology, and many advantages in use, and continues to promote technological progress and product quality improvement in the steel industry.
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