Steel fiber has not been around for long, but its application areas are becoming more and more extensive. Correspondingly, the varieties of steel fiber are also increasing.
1. According to the appearance (Figure 1), there are: straight steel fiber (a), pressed prism steel fiber (b), corrugated steel fiber (c), hook-shaped steel fiber (d\e), big-headed steel fiber (f), double-pointed steel fiber (g), bundled steel fiber (h), etc.
2. According to the cross-sectional shape (Figure 2), there are: round (a), rectangular (b), groove (c), irregular (d)
3. According to the production process, there are: cut steel fiber (cut with fine steel wire); shear steel fiber (cut with thin steel plate or strip steel);
milling steel fiber (cut with thick steel plate or steel ingot); melt-drawn steel fiber (drawn with molten steel). The most promising is melt-drawn steel fiber, which has the lowest price.
4. According to the material, there are:
Ordinary carbon steel fiber (tensile strength is generally 300~2500MPa);
Stainless steel fiber (materials include 304, 310, 330, 430, 446, etc.);
Other metal fibers (aluminum fiber, copper fiber, titanium fiber and alloy fiber). 5. According to the surface coating state, there are:
No coating layer, epoxy resin coated surface, galvanized, etc. Ordinary steel fiber without coating layer is widely used in industry.
6. According to the construction process, there are: injection and casting.
7. According to the diameter size, there are:
Ordinary steel fiber (diameter d＞0.08mm);
Ultrafine steel fiber (diameter d≤0.08mm);
Ultrafine steel fiber is mainly used to reinforce plastic and asbestos friction materials.