First, a good silicon metal 553 in the content of the characteristics: the formal national standard silicon metal 553 requirements content of iron content accounted for 0.5% of the aluminum element accounted for 0.5% of the calcium content accounted for 0.3% in the content of silicon metal in the silicon content should be as high as 98.5% in the steel deoxidization has a good effect, in the purchase of silicon metal 553 can also be asked to the silicon metal manufacturers to request a sample of the assay analysis! Good silicon metal 553 should have the content requirements standard.
Second, the good metal silicon 553 in the price characteristics: metal silicon 553 in the product can be divided into oxygen metal silicon 553 and non-oxygenated metal silicon 553 both in the price is also different, in general, the oxygenated metal silicon 553 price is generally in the 12,000 yuan / ton or so, while the non-oxygenated metal silicon 553 price is generally in the 11,000 yuan / ton or so, if the metal silicon 553 If the manufacturer's offer is too far from the standard price, you should pay attention to the reliability of the manufacturer's silicon metal 553 products.
