Ferrosilicon 75 & Silicomanganese

FeSi 75 by Si, Al and C; SiMn 65/17 by Mn, Si, C and P — deoxidisers in jumbo bags

Ferrosilicon and silicomanganese are the two alloys almost every steel mill buys every month, because they are how the melt is deoxidised and alloyed before casting, and they are bought on tight residuals rather than on headline metal content. Ferrosilicon 75 (FeSi 75) is 72–80% Si; the buyer's real numbers are aluminium (≤ 1.5% standard, ≤ 1.0% or ≤ 0.5% for low-Al grades used in wire-rod and tyre-cord steels, because Al forms alumina inclusions), carbon (≤ 0.1–0.2%), phosphorus (≤ 0.04%), sulphur (≤ 0.02%) and titanium and calcium for the cleanest grades; FeSi 65 and FeSi 45 are cheaper, lower-silicon alloys for foundries and less demanding steels. Silicomanganese 65/17 is 65–68% Mn with 16–18% Si and carries its own penalty elements — carbon (≤ 2.0%, or ≤ 1.5% for the low-carbon grade), phosphorus (≤ 0.20–0.35%, and every hundredth transfers to the steel) and sulphur (≤ 0.03%) — with the 60/14 grade a lower-priced alternative for rebar and structural mills. It is smelted from the manganese ore covered under our manganese ore page, blended to the 5:1 Mn/Fe ratio the alloy needs. Size for both is 10–50 or 10–100 mm lumps, with 3–10 mm and 0–3 mm fines and briquettes for ladle injection at a discount. On the trade, UN Comtrade 2025 export declarations under HS 7202 show India, the largest silicomanganese exporter, at 2.63 million MT of ferroalloys to 109 partners at an average USD 1,014/MT: Korea 241,000 MT at USD 1,107, the USA 224,000 MT at USD 1,091, Italy 201,000 MT, the UAE 193,000 MT at USD 1,021, Japan 183,000 MT, Turkiye 173,000 MT at USD 986, the Netherlands 151,000 MT, China 138,000 MT and Egypt 125,000 MT at USD 936, with Vietnam, Thailand, Indonesia, Brazil and Malaysia behind them.

The buyer is a steel mill's purchasing department working a monthly deoxidiser budget, or a foundry buying FeSi for inoculation and grey-iron chemistry, and the enquiry is a specification with ceilings, a monthly tonnage and a delivery port, not a one-off cargo. Gulf, Turkish and Egyptian mills — the UAE, Turkiye and Egypt are three of India's top nine destinations — buy container lots of jumbo bags on a rolling basis; Southeast Asian mills do the same out of Indian and Malaysian smelters. CBIL is a commodity brokerage company and brokers FeSi 75, FeSi 65 and silicomanganese 65/17 and 60/14 from Indian, Malaysian, Norwegian, Brazilian and Chinese smelter and trader allocations against SGS or Bureau Veritas certification of Si or Mn, Al, C, P, S and size distribution, on the mill's own ceiling sheet. Supply is structured in 1 MT jumbo bags in 20-foot containers for the standard 100–1,000 MT monthly lot, and in breakbulk for larger mills, on FOB, CFR and CIF terms into Jebel Ali, Iskenderun, Alexandria, Haiphong and Ho Chi Minh; because CBIL also runs a chartering desk (LaycanDesk), the freight leg on breakbulk lots is quoted alongside the alloy. Send your Si or Mn floor, aluminium and phosphorus ceilings, size band and monthly tonnage and we will work the smelter to it.

Need the ship as well? Our chartering desk prices bulk ore freight on LaycanDesk.