Silicon manganese in SiMn 6517 and 6014 grades at 60–65% manganese and 14–18% silicon, sized 10–80mm for direct furnace charging. Priced on manganese content basis with SGS chemistry and screen analysis at load port.
Silicon manganese grades are named by their two key numbers: the first pair is manganese percentage, the second is silicon. SiMn 6517 means nominally 65% Mn and 17% Si. Once you know that, the grade table reads itself.
Higher silicon means stronger deoxidising power and lower carbon contribution to the melt. 6517 is the international standard grade for most steelmaking; 6014 is more economical where the additional silicon is not needed and slightly higher carbon is acceptable.
SiMn delivers manganese and silicon together in one addition. That is not just convenience — it changes the economics and the metallurgy of the ladle.
The practical decision is between SiMn and a combination of ferro manganese plus ferro silicon. Where your grade tolerates the silicon, SiMn usually wins on recovery and handling cost.
As with all ferro alloys, size affects furnace behaviour and how much you lose. State a size range and a maximum fines percentage in the contract.
Screen analysis by SGS or Bureau Veritas at load port is standard practice and is how a fines dispute is avoided rather than argued about after arrival.
On specifications: the figures above reflect standard industry specifications for this product. Your actual batch values are confirmed on the Mill Test Certificate or Certificate of Analysis issued against your specific lot — provided with every shipment, and with sample orders before you commit to bulk. We do not ask buyers to take a specification on trust.
Ferro alloys are bulk commodities where independent load-port verification is standard practice.
HS Code 7202.30. Packing in 1 MT jumbo bags or bulk as ordered.
MOQ is discussed at order stage. Pricing normally on a manganese content basis with adjustment clauses. Payment by advance TT, LC at sight, or DP/DA case by case.
The numbers are the nominal chemistry: 65 percent manganese and 17 percent silicon. SiMn 6014 is nominally 60 percent manganese and 14 percent silicon. 6517 is the international standard grade for most steelmaking; 6014 is more economical where the extra silicon is not needed and slightly higher carbon is acceptable.
SiMn delivers both elements in a single charge, which reduces handling steps, and the silicon scavenges oxygen before manganese is lost to oxidation, improving manganese recovery. It also carries far less carbon than high carbon ferro manganese, at a maximum of 2 percent against 6 to 8 percent. Where your grade tolerates the silicon, SiMn usually wins on recovery and cost per unit of manganese.
Standard SiMn 6517 holds carbon to a maximum of 2 percent, and 6014 to 2.5 percent. A low carbon variant at maximum 1 percent is available where your steel grade requires tighter control. This is substantially lower than high carbon ferro manganese, which is one of the reasons SiMn is preferred in many grades.
Size affects furnace behaviour and recovery. The commercial default is 10 to 80mm for standard charging. Undersize generates dust and blows out of the charge; oversize dissolves slowly. Always state a maximum permissible fines percentage below 10mm in the contract, and have screen analysis done at load port.
Normally on a manganese content basis with adjustment clauses, rather than a flat rate per tonne. Agree the base manganese percentage, the adjustment mechanism, the silicon range and the maximum fines before the order is confirmed.
Ferro-silico-manganese is exported under HS Code 7202.30. We declare the correct code on all shipping documents and prepare the Customs declaration accordingly.
Technical drawings welcome. FOB or CIF pricing within 24 hours. Third-party inspection available.
Technical drawings welcome. FOB or CIF pricing, samples available.
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