A182 F5 Alloy Spectacle Blind & ATK 24.200.02-90 Blind Flange Shipped to Russia

This shipment prepared for our Russian client covers two isolation fittings made from A182 F5 alloy steel with chromium content above 4.50%. This A182 F5 spectacle blind and blind flange package is made to local Russian technical documentation, built for reliable isolation duties on high-temperature process lines, where stable oxidation resistance is essential.

The smaller unit is a DN50 Class 300 spectacle blind marked LM/LF, manufactured to ТМ-06-ДТА-018. This A182 F5 spectacle blind offers a convenient toggle isolation solution, letting site crews switch between open and closed status without fully removing the flange joint. For Russian refinery and steam piping layouts, spectacle blinds are widely specified for sections that require periodic lock-off for maintenance or hydrotesting.

A182 F5 alloy spectacle blind for Russian process piping isolation

Paired with it is a DN400 PN16 type 2 flange plug, following АТК 24.200.02-90, a common Russian standard for flange closure components. This A182 F5 blind flange is sized for larger header lines, providing permanent or temporary blank-off at flanged connections. Though the two fittings follow separate drawing standards, they share the same A182 F5 alloy grade, so the material’s thermal expansion and corrosion behaviour match the adjacent alloy piping circuit.

A182 F5 is a chromium-molybdenum alloy grade selected for sustained high-temperature service. The minimum 4.50% chromium forms a protective oxide layer, slowing scaling and metal degradation under heat cycling. Many Russian design offices prefer this grade over standard carbon steel for heater runs, steam manifolds and hydrocarbon process lines, where ordinary carbon steel would degrade quickly. Every piece is clearly marked with standard designation, size, pressure rating and heat number for site inspection tracking.

Our QC team checks face flatness, thickness, hole pitch and surface finish for each fitting before packing. All inspection records and material certificates are organised separately for the ТМ-06-ДТА-018 spectacle blind and АТК 24.200.02-90 blind flange, matching the document format familiar to Russian third-party inspectors. Sealing surfaces are protected against scratches during transit, a critical detail for isolation fittings that directly contact gaskets.

Haihao Group regularly supplies isolation blanks, spectacle blinds and blind flanges made to Russian TU and ATK standards for energy and chemical projects. If you need A182 F5 or other alloy isolation fittings with custom Russian drawing specifications, send your size, pressure class and technical sheet to our engineering team for a quotation.