... and according to customers' use experience, Duratight Carbon additive has gained the features of high carbon, low sulfur, low nitrogen and less ... increasing and the application scope is expanding.Specification: Item No.Fixed Carbon (min)Sulfur (max)Ash (max)V.MMoistureGrain size(90%) ... 10 for you, Fixed carbon(max):95%,sulfur(max):0.3%2/ for low Nitrogen steel, Steel cord ,high strength wire-steel,we ...