High Carbon Ferro Manganese HC FeMn As Deoxidizer In Steel Making
Ferro Manganese Description:
In steelmaking, Ferro manganese used as deoxidizer and alloy
additives, is the largest amount of ferroalloy.
The manganese ore used for smelting ferromanganese is generally
required to contain 40 ~ 50% manganese, ferromanganese ratio is
greater than 7, phosphorus and manganese ratio is less than 0.003.
Before smelting, the manganese carbonate ore must be roasted first,
and the powder ore must be sintered to form blocks. The ore with
high iron and phosphorus content can only be used in combination,
or the manganese rich slag with low iron and phosphorus can be
obtained through selective reduction. Smelting with coke as
reducing agent, some plants also with lean coal or anthracite. The
auxiliary raw material is mainly lime, and silicon ore is generally
added when smelting manganese silicon alloy.
Ferro Manganese Applications:
Manganese is intentionally present in most grades of steel and is a
residual constituent of virtually all others. Aside from its
historic importance as a desulfurizer and deoxidizer, manganese is
undoubtedly the most prevalent alloying agent in steels, after
carbon. Understandably, therefore, ferromanganese is the most
widely used ferroalloy.
Of the 15 steelmaking manganese products recognized in ASTM
standards, the most important is high carbon (standard)
ferromanganese. It is generally sold in two manganese
concentrations: 74-76% and 78-82%, with the latter predominating.
Carbon content will not exceed 7.5%, silicon will be less than 1.5%
and sulfur and phosphorus, 0.03 and 0.3 %, respectively. A low
phosphorus variety is available as well.
Manganese addition agents are generally chosen on the basis of
carbon content. Inexpensive standard ferromanganese is used when
the steel is well oxidized (low in carbon) or when higher residual
carbon contents are allowable. As maximum steel carbons become more
restricted it is necessary to switch to the more costly low-or
medium carbon ferroalloys. The final aim chemistry will determine
which addition agents can or cannot be used. Silicon content is
often a second deciding factor.
F & Q:
1. What is our MOQ?
Basically, Our MOQ is 20 tons. There is no specific limit to order,
we can give the best offer according to your situation.
2. How do you control quality ?
Mill Test Certification is supplied with shipment, Third Party
Inspections are all available.
3. Do you provide samples?
Yes, We do. Samples are always available and they can be sent to
4. How long does the delivery time take?
Our normal delivery time takes about 3 weeks once the contract
singed, but it also depends on the quantity of the order.
5. Can we visit your plant?
Of course, we will be always looking for you.