This standard specifies the classification, requirements, test methods, inspection rules and marking, packaging, transportation and other requirements for right-angle elbows made of impermeable graphite (impregnated, pressed). This standard applies to right-angle elbows made of impermeable graphite materials (impregnated, pressed) used on pipelines for transporting corrosive media in the chemical, petroleum and other industries. It also applies to non-permeable elbows in pipelines for similar purposes in other industries. Permeable graphite right angle elbow.
HG/T 3192-2009 Referenced Document
GB/T 13465.1 Test method of impermeable graphite materials.Part 1:General of test method for mechanical properties*, 2014-09-03 Update
GB/T 13465.2 Test method of impermeable graphite materials.Part 2:Flexure strength*, 2014-09-03 Update
GB/T 13465.3 Test method of impermeable graphite materials.Part 3:Compress strength*, 2014-09-03 Update
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
HG/T 2059-2004 Technical regulations for imperious graphite tube
HG/T 2370-2005 Specification of graphite chemical process equipment
HG/T 2642 Test method for tensile strength of impermeable graphite materials