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Технические статьи, сравнение стандартов, кейсы проектов и руководства по выбору фитингов, фланцев и кованых элементов трубопроводов.
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Запросить ценуСтатей: 31· Стандарты
СтандартыUnderstand the WP and CR classes in ASTM A815 for duplex stainless fittings, including subclasses WP-S, WP-W, WP-WX, and WP-WU, and how they affect procurement and inspection.
СтандартыUnderstand ASTM A403/A403M for wrought austenitic stainless steel fittings: WP/CR grades, classes, heat treatment, and procurement checks for EPC buyers.
СтандартыASTM A694/A694M covers forged or rolled steel flanges, fittings, valves, and parts for high-strength transmission-service pipe. This guide explains grades, procurement checks, and inspection points for EPC buyers.
СтандартыASTM A182 covers forged low-alloy and stainless steel flanges, fittings, valves, and parts for high-temperature service. This guide explains what buyers must specify beyond the standard, including grade, heat treatment, and dimensional standards.
СтандартыASME B16.42 covers cast ductile iron flanges and flanged fittings in Classes 150 and 300. This guide explains scope, key requirements, and procurement checks for EPC engineers and buyers.
СтандартыASME B16.39 covers threaded malleable iron unions in Classes 150, 250, and 300, including design, ratings, materials, threads, and tests. This guide explains what EPC engineers and procurement managers must verify when specifying these unions.
СтандартыASME B16.3 covers malleable iron threaded fittings in Classes 150 and 300, including ratings, dimensions, threading, and coatings. This guide explains the standard's scope, key requirements, and procurement checks for EPC engineers and buyers.
СтандартыASME B16.14 covers ferrous pipe plugs, bushings, and locknuts with pipe threads, including ratings, dimensions, materials, and marking. This guide explains the standard's scope, key differences from ASME B1.20.1, and what buyers must verify to avoid specification errors.
СтандартыASME B16.1 covers gray iron flanges and flanged fittings in Classes 25, 125, and 250. This guide explains what the standard includes, how it differs from ductile iron (B16.42), and what buyers must verify when sourcing gray iron flanges.
