根据GOST 21631-76标准,无缝铝管应采用6061和6063等铝合金材料。这些合金具有良好的可加工性、耐腐蚀性和机械性能,广泛应用于各种工业领域。标准还详细规定了这些合金的化学成分、物理性能和机械性能等指标要求,以确保材料质量。 三、...
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GOST 21631-76: Sheets of aluminium and aluminium alloys. Specifications GOST 2170-73: Strips of nickel and nickel low alloys. Specifications GOST 21744-83: Multilayer metal bellows. General specifications GOST 21945-76: Seamless hot-rolled pipes from titanium-based alloys ...
GOST 21631-76: Sheets of aluminium and aluminium alloys. Specifications GOST 2246-70: Welding steel wire. Specifications GOST 25347-82: Basic norms of interchangeability. Unified system of tolerances and fits. Tolerance zones and recommendable fits ...
GOST 21631-76: Sheets of aluminium and aluminium alloys. Specifications GOST 21646-2003: Copper and brass tubes for heat-exchange apparatus. Specifications GOST 21650-76: Means of fastening tared and break bulk cargoes in the loads units. General requirements ...
GOST 21631-76: Sheets of aluminium and aluminium alloys. Specifications GOST 21880-2011: Thermoinsulating mineral wool broached mats. Specifications GOST 2228-81: Paper for bags GOST 27751-2014: Reliability for constructions and foundations. General principles ...
GOST 21631-76: Sheets of aluminium and aluminium alloys. SpecificationsGOST 2824-86: Electric insulating cardboardGOST 3056-74: Casein glue powder. SpecificationsGOST 3916-69: Plywood. SpecificationGOST 4598-86: Fibre boards. SpecificationsGOST 6034-74: Dextrins. Specifications...
GOST 21631-76: Sheets of aluminium and aluminium alloys. SpecificationsGOST 21646-76: Brass tubes for heat exchange apparatusGOST 2168-83: Technical dimethylaniline. SpecificationsGOST 2169-69: Silicon technical. SpecificationsGOST 2170-2016: Strips of nickel and nickel low alloys. Specifications...