Project snapshot

Delivery highlights

Manufacturing and machining scope

The F22 forgings were processed under the ordered material and heat-treatment requirements before final machining. Hub profiles, bolt drilling, gasket faces and weld ends were produced to the applicable ASME B16.5 dimensional envelope. The ordered pipe schedule was treated as a controlled input because a correct Class 600 flange can still create a field mismatch if the bore or weld preparation is wrong.

During production, heat identity followed the parts through machining and inspection. Permanent marking was applied in a location that remained legible after coating and packing without affecting the sealing surface or weld end.

Release inspection before shipment

PMI confirmed the chrome-moly alloy family, while hardness readings and material records addressed the delivered condition. Dimensional checks covered outside diameter, thickness, hub geometry, bolt-hole pattern, bore, weld end and raised-face condition. These checks perform different functions and were reviewed together rather than using PMI as a substitute for mechanical or dimensional acceptance.

Following release, sealing faces received rigid protection and the flanges were separated inside the export package to prevent metal-to-metal impact.

Information needed for a comparable RFQ

A comparable inquiry should identify the exact material specification and grade, governing standard and edition, NPS, pressure class, flange type, facing, bore or matching pipe schedule, quantity and destination. For this project-news scope, the key reference points were ASTM A182 F22 forged alloy steel, Weld neck, raised face (WNRF), Class 600 and NPS 2–12; bores matched to ordered pipe schedules.

State the required EN 10204 certificate type, heat-number traceability, PMI extent, hardness limits, dimensional report, NDE method and acceptance standard, third-party witness points, packing method and required delivery date at quotation stage. Early definition allows manufacturing, inspection and document schedules to be reviewed together.

Production, inspection and packing photos

Images show the relevant SASA FLANGE production, quality-control and shipment stages used for this project-news report.

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