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

DL-1.2

DL-1.2

Lightweight silica refractories of DL-1.2 found their use in metallurgical, glass industry, machine-building industry, and are used both in working lining of the furnaces not subject to exposure to molten metal and mechanical shocks, and in intermediate (protective) insulation. 

Maximum temperature of their application is 1550°С.


The products are supplied on wooden pallets interlaid with cardboard, with protected corners, wrapped with stretch film and bundled with plastic strip.
Parameter descriptionValue
Typesiliciferous
Groupsilica with additions (SiO2 - 80-93%)
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 dimensionsaccording to DSTU GOST 6024:2009 (ISO 5019-3-84) (with amendments No.1,2,3),Specification of Ukraine 23.2-00190503-432:2018, according to DSTU GOST 8691:2009
Parameter descriptionValue
Additional linear growth (shrinkage) at holding within 2 hours and temperature °С, %1,0 (1550°C)
Apparent specific gravity, g/сm31,2
Compression ultimate strength, N/mm2, not less than4,5
Density, g/сm32,39
Heat conductivity, W/(mK), at average temperature (350±25)°С0,60
Heat conductivity, W/(mK), at average temperature (650±25)°С0,70
SiO2, %≥91
FormArticle No.Additional informationPhoto
edge feather-edged brick (double-sided or one-sided)No.42mark-7-conf-255-small.jpg
No.43
No.44
No.45
No.47
No.48
front feather-edged brick (double-sided or one-sided)No.22mark-7-conf-258-small.jpg
No.23
No.25
No.26
No.27
No.28
No.29
straight brickNo.10Lightweight products of grade DL1,2 No.10 are produced in two types of dimensions: - according to GOST 20901 - tapered, symmetrical wall brick, - according to DSTU GOST 8691 - straight brick.mark-7-conf-261-small.jpg
No.3
No.4Lightweight products of grade DL1,2 No.4 are produced in two types of dimensions: - according to DSTU GOST 6024 - straight brick, - according to DSTU GOST 8691 - straight brick.
No.5Lightweight products of grade DL1,2 No.5 are produced in two types of dimensions: - according to DSTU GOST 6024 - straight brick, - according to DSTU GOST 8691 - straight brick.
No.8Lightweight products of grade DL1,2 No.8 are produced in two types of dimensions: - according to GOST 20901 - tapered, symmetrical wall brick, - according to DSTU GOST 8691 - straight brick.
No.9
one-and-a-half straight brickNo.11mark-7-conf-262-small.jpg
three-quarter straight brickNo.17mark-7-conf-263-small.jpg
trapezoidal brick (double-sided and one-sided)No.49mark-7-conf-269-small.jpg
No.50
No.51
front one-and-a-half feather-edged brick (double-sided and one-sided)No.35mark-7-conf-287-small.jpg
No.36
customer drawing
No.12Lightweight products of grade DL1,2 No.12 are produced in two types of dimensions: - according to DSTU GOST 6024 - straight brick, - according to DSTU GOST 8691 - one-and-a-half straight brick.
No.6
No.7Lightweight products of grade DL1,2 No.7 are produced in two types of dimensions: - according to GOST 20901 - tapered, symmetrical wall brick, - according to DSTU GOST 8691 - straight brick.
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
No.29UNDEF
straight brickNo.10UNDEFstraight brick
No.3UNDEF
No.4UNDEF
No.5UNDEF
No.8UNDEF
No.9UNDEF
one-and-a-half straight brickNo.11UNDEFone-and-a-half straight brick
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
No.12
No.6
No.7