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Chromax Plates

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Chromax Plates

CHROMAX wear plate by DEMECH is a composite plate, manufactured by a unique process in which a uniform layer of highly wear resistant carbides is deposited on a carbon steel base. Very hard carbides are suspended in a tough wear resistant matrix. It is the concentration and uniform distribution of carbide structure that gives CHROMAX wear plate its unique wear resistant and life prolonging characteristics.

The process involves applying specially and accurately blended powders to the area to be overlaid by forming an arc, and covering the arc by flux which avoids the oxidation of the deposits.

The bond between the mild steel base and the overlay is of very high strength and resists repeated and prolonged impact loads and the overlaid deposit offers inequable resistance to low and high stress abrasion.

CHROMAX wear plate is very cost effective giving extremely long life reducing maintenance, downtime, increasing productivity and efficiency, hence extensively used for sinter screens, chute liners, hoppers, mill liners etc.

  • CHROMAX  PLATE has hardness range of 55 to 65 HRC (Rockwell C Scale) depending on grade. Hardness is uniform throughout the overlay thickness.
  • CHROMAX PLATE consists of up to 60% by volume of Chromium rich carbides in an Iron matrix.
  • CHROMAX PLATE offers unparalleled resistance to high stress abrasion and prolonged impact loading at a high temperature up to 700ºC.
  • Cold abrasion tests have shown an improvement in wear resistance at 30 times that of mild steel. 3 to 1 improvement over traditional wear resistant materials such as Ni-Hard. Normal conditions show 12 to 1 improvement over heat treated Manganese Steel Hot abrasion tests have shown 20 to 1 improvement over mild steel.

WEAR RESIST PLATE SIZE

Standard sheet size: 1170 x 3000, 1400 x 3000, 1900 x 3000 mm

Base Plate Thickness in mm Overlay Thickness in mm
6 4 & 6
8,10,12,14,16,20 & Above 4, 6 & 8

 

Other sizes, thickness and shapes made to order as per your drawing ready for installation.

RANGE OF PRODUCTS.

Grade Hardness in Rc Alloying Elements Properties Suitable for
Chromax 2457 53-57 C, Cr, Mn, Si Hyper eutectic carbides in the matrix of Austenite and Martensite (Optimized Grade). Moderate Impact and Abrasion.
Chromax 2458 55-59 C, Cr, Mn, Si Hyper eutectic carbides in the matrix of Austenite and Martensite. Moderate Impact and Abrasion.
Chromax 2660 58-62 C, Cr, Mn, B. Hyper eutectic carbides in the matrix of Martensite. Severe Abrasion and mild Impact.
Chromax 2661 60-63 C, Cr, Mo, V, B. Chromium carbides and borides closely packed to give a very fine macrostructure with a very hard martensitic matrix. Severe Abrasion and Erosion.
Chromax 2662 62-65 C, Cr, Mo, V, W, Nb Hard Austenitic matrix with Complex Carbides of Chromium, Molybdenum, Niobium, Tungsten, Vanadium. Severe Abrasion at Elevated Temperature.

Note: Custom made product can be supplied as per customer requirement and application

 CHROMAX wear plates are successfully used in the core sector industries like Power, Steel, Cement,  Mines & collieries. They are also used in Earth Moving Equipments, Chemical process plants & Pneumatic conveying systems. Some of the key applications are:

  1. Thermal Power Stations:  Vibratory feeders, Coal Feeder Plates, Coal Handling plant Chutes, Feeder Breaker and Crusher liner Plates, Surge hoppers, Scroll liners, Liner for Fly ash hopper, Liner for Transition plate.
  2. Cement Plants:  Clinker dust /Raw mill cyclone liners, Raw Mill body liners, Ducts and chutes, Flap and Valve Body, Crusher liners, Coal Mill Fan Blades, Cement Mill Impeller, Ventilators, Sepex Air Separator Vanes / Louvre's, Fan casing liners, Chutes and skirt liners, Breaker plates, Hammer Mill liners, Guide Vanes/classifier Static vanes, Hoppers, Feed Pipes/ Chutes, Roller cover Ring, Raw Mill Wear Guard, Nozzle segment for Raw Mill, Rotary/Apron Feeder liners, Atox Mill body liners, Polycom Hydraulic Gate liner, Armour Ring for Raw mill, Bucket wheel chute
  3. Mines/ Collieries:  Transfer Chutes, Conveyor chute chutes and liner, Hopper liner, Coal crusher liner, Skirt and chute liner, Pathways, Vibratory feeder liner, Reject Bin liner, Slurry pipes, Deck and skirting plates, Apron Feeders, Dump Truck Body, Mines and quarry skips, Ore scarpers, Grizzly Bars and side plates, Reclaimer liner, Ore cars, Drag line Buckets
  4. Steel Plants:   Screen Plates, Scroll casing liners, Sinter Fan Blades, Crusher liners, Transfer chutes, Coke Guide plates, Bunker liners, Cyclones, Chain Guides, Raw Mill bins, Vibratory Feeder liners, Storage hoppers, Scrubber Discharge chute, Shell liner for Dryer, Pipe for Coal Mill of Blast Furnace, Product feed feeding chute, Liner for DP Flap, Liners for Feeder of Sinter plant.
  5. Earth Moving Equipments:  Bull Dozer Blades, Scrapers, Compact Rolls, Loader Buckets.
  6. Chemical Process Plant and Pneumatic Conveying:  Mixer paddles, Concrete Mixers, Clinker chutes, Suction sweeper blades, Spouts and Troughs.