LIGHTWEIGHT, HEAT INSULATING REFRACTORY AND HIGH REFRACTORY PRODUCTS ACCORDING TO DSTU 2342-94 (GOST 5040-96)

MLL-1.3

Are used as effective heat insulating refractory. Reduced refractory weight gives the possibility to reduce heat accumulation inside the heat aggregates walls that positively reflects on mechanics of heat and linear extensions at cyclic usage of heat aggregates, as well as on their durability. Low thermal conduction gives the possibility to considerably save the resources and leads to general cost reduction.
The products are delivered on wooden pallets, laid with cardboard, protected with angles, wrapped with stretch-film and bundled with polypropylene or polyester strip.
Parameter descriptionValue
Typealuminosilicate
Groupmullite (Al2O3 62-72%)
Refractoriness valuefire resistance (1580 to 1770°С)
Porosity degreehighly-porous (Ptot 45-75%)
Heat treatment methodburnt
Molding processsemidry forming
Binding type 1with inorganic binders
Binding type 2ceramic
Intended purposerepair/construction
scope of applicationin working (not protected) lining of furnaces, not subject to exposure to melted iron, abrasion force and mechanical shocks, or in intermediate (protected insulation)
Reference document for product propertiesLightweight, heat insulating refractory and high refractory products according to DSTU 2342-94 (GOST 5040-96)
Reference documents for product dimensionsRefractories of general purpose according to DSTU GOST 8691:2009 (ISO 5019-1-84) (with amendments No.1,2,3,4)
Parameter descriptionValue
Additional linear growth (shrinkage) at holding within 2 hours and temperature °С, %
Al2O3, %≥63
Apparent specific gravity, g/сm3≤1,3
Compression ultimate strength, N/mm2, not less than3,0
Fe2O3, %≤1,4
Heat conductivity, W/(mK), at average temperature (350±25)°С0,5
Heat conductivity, W/(mK), at average temperature (650±25)°С0,6
FormArticle No.Additional informationPhoto
edge feather-edged brick (double-sided or one-sided)No.42No.42mark-165-conf-255-small.jpg
No.43No.43
No.44No.44
No.45No.45
No.47No.47
No.48No.48
front feather-edged brick (double-sided or one-sided)No.22No.22mark-165-conf-258-small.jpg
No.23No.23
No.25No.25
No.26No.26
No.27No.27
No.28No.28
straight brickNo.10No.10mark-165-conf-261-small.jpg
No.3No.3
No.4No.4
No.5No.5
No.6No.6
No.7No.7
No.8No.8
No.9No.9
one-and-a-half straight brickNo.11No.11mark-165-conf-262-small.jpg
No.12No.12
three-quarter straight brickNo.17No.17mark-165-conf-263-small.jpg
trapezoidal brick (double-sided and one-sided)No.49No.49mark-165-conf-269-small.jpg
No.50No.50
No.51No.51
front one-and-a-half feather-edged brick (double-sided and one-sided)No.35No.35mark-165-conf-287-small.jpg
No.36No.36
customer drawingcustomer drawing
FormArticle No.Dimension, mmDrawing
edge feather-edged brick (double-sided or one-sided)No.42UNDEFedge feather-edged brick (double-sided or one-sided)
No.43UNDEF
No.44UNDEF
No.45UNDEF
No.47UNDEF
No.48UNDEF
front feather-edged brick (double-sided or one-sided)No.22UNDEF
No.23UNDEF
No.25UNDEF
No.26UNDEF
No.27UNDEF
No.28UNDEF
straight brickNo.10UNDEFstraight brick
No.3UNDEF
No.4UNDEF
No.5UNDEF
No.6UNDEF
No.7UNDEF
No.8UNDEF
No.9UNDEF
one-and-a-half straight brickNo.11UNDEFone-and-a-half straight brick
No.12UNDEF
three-quarter straight brickNo.17UNDEFthree-quarter straight brick
trapezoidal brick (double-sided and one-sided)No.49UNDEFtrapezoidal brick (double-sided and one-sided)
No.50UNDEF
No.51UNDEF
front one-and-a-half feather-edged brick (double-sided and one-sided)No.35UNDEFfront one-and-a-half feather-edged brick (double-sided and one-sided)
No.36UNDEF
customer drawing