Flange Technical Guides & Industry News

Compare Hastelloy B2 and C276 flanges for hydrochloric acid service, including alloy differences, oxidizing contaminants, specifications and RFQ checks.

Compare Alloy 20 and 316L flanges for sulfuric acid service, including material differences, corrosion limits, specifications and RFQ checks.

Learn what ISO 14726 pipe colours identify, how to verify C70600 and C71500 copper-nickel, and what markings, MTC and PMI checks buyers need.

Learn how ASTM A182 F630 identifies forged 17-4 PH flanges, how H900, H1150 and H1150M differ, and what buyers should state in an RFQ.

Compare ASTM F1554 Grades 36, 55 and 105, including yield strength, S1 weldability, galvanizing and the RFQ details buyers should specify.

Learn when ASTM B446 or F468 applies to Inconel 625 threaded rod, how Grade 1 differs from Grade 2, and what buyers should state in an RFQ.

Buying 2507 pipe fittings? Clarify ASTM A923 methods, sample traceability and acceptance requirements before approving a quotation or test report.

Understand 904L, UNS N08904 and EN 1.4539 designations, typical chemistry and the documents buyers should check before ordering pipe fittings.

Learn when carbon and stainless steel flanges can mate, how galvanic corrosion changes the decision, and what buyers should specify in an RFQ.