StandardsASME B16.5 vs B16.47 Series A vs Series B Large Flanges
Procurement guide comparing ASME B16.5, B16.47 Series A (ex-MSS SP-44) and Series B (ex-API 605) large diameter flanges with size and pressure ranges.
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StandardsProcurement guide comparing ASME B16.5, B16.47 Series A (ex-MSS SP-44) and Series B (ex-API 605) large diameter flanges with size and pressure ranges.
StandardsWet H₂S environments demand specific material chemistry, hardness limits, and heat treatment. Here is what NACE MR0175 actually requires for buttweld fittings and forged flanges.
StandardsEN 10253 and ASME B16.9 cover the same product family but diverge on a few sizes, on PED conformity, and on allowable stresses. Buyers shipping into the EU need to read the small print.
StandardsASME B16.9 covers everyday carbon and alloy steel fittings. MSS SP-75 is for high-yield, high-pressure pipeline service. Here is when each one applies — and why mixing them is a costly mistake.