History
ELMET
Since 1979, ELMET started operations, using the latest development in production of Silicon Carbide around the world: Direct Current Electric Furnaces.
By 1981, the electrofused Aluminum Oxide process was added to the manufacturing facility in Jáltipan, Veracruz (México). Located 1600 Kms. from Monterrey City at Apodaca, N.L., where the company’s administrative headquarters are located.
Customer oriented products, were established to fulfill the national and export requirements. Supported by advanced technical strength and strict Quality Control, our products have been rated highly by a broad spectrum of users, international and local.
Continuously expanding, ELMET, has achieved the accumulated experience from the closest cooperation with leading industrial users, to perform the most modern production methods where the latest in accepted laboratory procedures are involved.
SILICON CARBIDE PROCESSING PLANT
Since 2000 we have the Silicon Carbide processing plant that is located on Antigua Carretera to Santa Rosa Km. 4 Apodaca, N.L., México, where the company’s administrative headquarters are located.
It has an installed capacity of 35,000 tons of Silicon Carbide briquettes for foundry industry. Its application is for cupola furnaces.
Additionally, we have a 12,000 tons of macrograin capacity for refractory and abrasive industry.
We have 8 trucks that help us deliver products directly to our customers nationwide.
ELMET will continue growing as a response to the industrial needs of its clients in México and throughout the world.
ArtÃculos Ferro Metales, S.A.
With the support of ArtÃculos Ferro Metales, S.A., we are able to satisfy the strong demand of the Ferro Alloy market in Mexico and the world. Please check our contact information for more details.
Here is some general information on the products that we handle, for more details please check our product catalog.
FERRO-ALLOYS
Application: Used to add points in Silicon, Titanium, Chrome, Phosphorous and Molybdenum.
Examples:
- Ferro Silicon 75%
- Ferro Chrome
- Ferro Titanium
- Ferro Phosporous
- Ferro Molybdenum
SILICON CARBIDE
Metallurgical Products
- Abrasive Products
- Refractory Products
From selected quality raw materials and the most developed technology, ELMET’s black Silicon Carbide is obtained from the furnace under strictly controlled conditions for desired purity and crystalline structure.
The high power used and the evaluated temperature reached, guarantees, the highest quality crude obtained from furnacing.
With an adequate separation process, a tight controlled sizing, and employing the finest analytical equipment to check the properties of every minerals batch made. ELMET assures you, delivery of only the finest products for the several applications in industry.
1. METALLURGICAL PRODUCTS
Silicon Carbide has been found to be an extraordinary powerful deoxidizer, as well as an economical and effective source of silicon and carbon. It has been employed for more than 50 years by the iron and steel industry.
When silicon carbide is added to the molten metal it decomposes, and both silicon and carbon combine with oxygen. Some of the silicon replaces the metal in metal oxides present in the melt, forming silicon dioxide, which is more stable than the replaced metal oxide. The reduced metal goes into the metal melt, the silica remains in slag, while the CO formed comes off as a gas. A certain amount of free silicon provided from silicon carbide goes into the melt, raising the silicon content.
Application: Desoxidizer, Silicon and Carbon provider for steel and furnacing industries.
TYPES:
A) FERROSIC: Ferrocarbo: Is an 88-92% content of silicon carbide loose grain, graded 3/8″ and finer. Normally presented in “easy to handle 25 Kg. bags” or one metric ton supersacks. FERROSIC is widely used in steel melting as a deoxidizer. It is added in ladle to rimmed, semi-killed and killed steel grades, used for slag deoxidization in arc melting, for acid electric melting process, or as fuel in the BOF (basic oxygen furnace).
The electrically melted iron, processed in coreless induction and channel induction furnaces, commonly have problems related with high level of steel scrap in the charge, in addition to extensive superheating and long holding times. These practices are reported to encourage undercooling, thicker chill layer and undesirable graphite distribution. All these problems are minimized and some other advantages can be obtained by using FERROSIC.
B) FERROSIC Briquettes: Briqueta Sic 56, Briqueta 36%
Bonded silicon carbide, molded as briquettes are provided for use in cupolas. For addition as 1% to 3% of the metallic charge. Cast iron thus treated is found to have a more uniform microstructure. It has improved fluidity, yields sounder castings, “chill” depth in thin casting sections is reduced and precipitation of graphite in the desired “type A” form is favored in thicker sections.
When iron is treated with silicon carbide it is known to exhibit better machine ability and enhanced mechanical properties due to the improved structure mentioned above.
2. ABRASIVE PRODUCTS
A) EV-6 Grain (Type C-6): Is a black, semi-friable, medium density, silicon carbide abrasive, with a blocky shape, magnetically treated. For use in vitrified wheels and also capable to be bonded organically. Available On grit sizes 10 through 220.
Application: Abrasive Wheels.
B) EV-21 Grain (Type G-21): Is a black, semi-friable, medium density, silicon carbide abrasive with a sharp grain shape, magnetically treated, specially designed to be used in the production of coated abrasives (paper, cloth and fibers). Available In, grit sizes 10 through 220.
Application: Sandpaper Elaboration.
C) EV-WSC Grain (Type WSC): Is a block, medium density, silicon carbide abrasive, with a blocky shape, magnetically treated. EV-WSC is used primarily for wire sawing in the granite, marble and building stone industry. Available in group-graded fractions such as, 16/30, 30/60, 46/70, 46/120, 60/90, 60/120 and 120/220.
Application: Cutting Product.
3. REFRACTORY PRODUCTS
SIC Ripf Application: Refractory product for steel industry.
A) EV-R1S Grain: High purity refractory grain magnetically treated, recommended for the manufacture of high performance refractory products requiring: high thermal conductivity, hot strength chemical stability, thermal shock and abrasion resistance properties. Available in several individual sized fractions (splits), such as: 6/10, 10/18, 18/34, 34/70 and various “and finer sizes”: 6F, 70F, 100F and 200F, products with a definite coarse control, with variation expected for run-of-mill products.
B) EV-R5S Grain: This is a 90% silicon carbide content grain, recommended for the use in refractory products, such as cements and crucibles, where tower percentages of silicon cartridge are permitted. Available in 200F.
RECARBURIZERS
Adjust
- Foaming Slag
- Charge
Application: Used to add carbon points in the Furnace and Steel Industry.
TYPES:
Adjust Coke 4/35 Mallas
Application: Used to provide carbon in the pot.
A)Calcined Petroleum Coke
B)Calcined Antracite
BROWN FUSEN ALUMINA
Abrasive
- Refractory
Only high quality bauxite is used, when producing ELMET’s Brown Fused Alumina. The homogenity of the raw materials mix added to the melt, and the strict control during furnacing, yields a tough, pure and crystalline controlled structure in the lump crude.
TYPES:
G-52 GRAIN 12-220.
Application: Abrasive Sandpaper elaboration.
R-47 GRAIN 10-54.
Application: Used in abrasive wheels and other products.
C-31 GRAIN 60-240.
Application: Used in abrasive wheels and polish products and pastes.
RIPF.
Application: Used in the elaboration of refractory products in Steel Industry.
Primary crushing and selected milling, with an accurate grading and screening, results in uniform quality shaped and sized products. Permanent control of all properties by means of the latest laboratory equipment and procedures, can assure that every single product is characterized by properties necessary for its specific applications.
