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Technical articles, standards comparisons, project case studies and buyer guides on pressure piping components, flanges and forged fittings.
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Buyer guideA 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.
StandardsASTM 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.
TechnicalDuplex fittings require two distinct metallurgical checks: ferrite volume fraction by ASTM E562 and detrimental intermetallic phase detection by ASTM A923. Procurement buyers need to understand the difference before specifying.
Buyer guideChoosing between metallic and nonmetallic flange gaskets requires more than a quick comparison. This guide explains the ASME standards that govern each family, the critical factors to evaluate, and the procurement checks that prevent costly joint failures.
StandardsUnderstand 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.
TechnicalMacroetch per ASTM E340 helps reveal weld penetration, cracks, and HAZ features. Learn how it fits into ASME Section IX qualification, what to verify, and RFQ inputs for buyers.
Buyer guideA practical checklist for EPC engineers and procurement managers to verify ASME PCC-1 compliance in bolted flange joint assembly, covering procedures, training, and documentation.
StandardsUnderstand ASTM A403/A403M for wrought austenitic stainless steel fittings: WP/CR grades, classes, heat treatment, and procurement checks for EPC buyers.
TechnicalLearn how ASTM E1077 and A960/A960M apply to decarburization depth on heat-treated fittings, and what to specify in your RFQ to avoid disputes.
