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اطلب عرض339 مقالات
تقنيASTM G48 ferric chloride tests and ASTM A923 phase detection are complementary, not interchangeable. Learn what to specify, inspect, and verify when buying duplex fittings.
دليل المشتريSpecifying duplex stainless fittings requires more than grade and size. This guide explains ASTM A815 fitting classes, ASTM A923 intermetallic phase testing, and the RFQ details EPC buyers must define to avoid costly mismatches.
المعاييرUnderstand the role of ISO 15614-1 in qualifying welding procedures for steel and nickel alloys, and learn what buyers must verify before accepting a WPS/PQR.
تقنيASTM A262 and ASTM A763 detect intergranular attack in austenitic and ferritic stainless steels respectively. Learn which practice to specify, how to write RFQs, and what to check on test reports.
دليل المشتريVerifying NDT personnel certificates is more than checking a name and expiry date. This guide explains the key elements—method, level, sector, and scope—and highlights the differences between ISO 9712, ASNT 9712, ASNT NDT, and employer-based SNT-TC-1A certifications.
المعاييرISO 7005-1:2011 is a base specification for steel flanges in industrial and general service piping. It covers chemical, power, oil & gas applications, but leaves flange series selection to the purchaser. This guide explains the standard's scope, key differences from ASME B16.5, and procurement checks.
تقنيSelecting between ASTM A1084 and A923 for lean duplex fittings requires matching the standard to the alloy. Learn what to specify in your RFQ, how to verify test reports, and how to avoid common acceptance mistakes.
دليل المشتريA practical guide for EPC engineers and procurement managers on reviewing welding procedure specifications (WPS), procedure qualification records (PQR), and welder certificates, with key checks and common pitfalls.
المعاييرASTM A860 covers high-strength ferritic steel butt-welding fittings for high-pressure gas and oil pipelines. This guide explains scope, key requirements, and procurement checks, including the fact that hydrostatic testing is not mandatory under this specification.
