ASME B16.5 Socket Weld Flange is supplied for pressure piping projects where compliance with the requested standard, pressure class, facing type, and drilling pattern is essential. Although the finished flange may look simple, real purchasing decisions are usually controlled by dimensional compliance, traceability, heat-treatment status, NDT scope, and reliable machining accuracy.
Socket weld flanges are usually applied in small-bore and higher-pressure piping systems. Buyers commonly focus on socket dimensions, facing accuracy, standard compliance, and material certification because the flange must match both the design code and the customer’s welding procedure.
Product Code | 16006 |
Typical Materials | A105, A350 LF2, A182 F304/F316/F51/F11/F22 and other flange grades to applicable standard |
Typical Size Range | Size, pressure class, facing, drilling, standard system, and project dimensions arranged to specification |
Supply Condition | As forged / heat treated / machined according to standard and project scope |
Machining Scope | Facing, bore, drilling, beveling, serration, tapping, and project-specific flange machining |
Inspection Options | UT/MT/PT, PMI, hardness, dimensional checks, hydro test if applicable, and third-party witness |
Documentation | EN 10204 3.1, heat-treatment record, dimensional report, NDT report, marking list, and project-specific dossier |
Typical Applications | Small-bore high-pressure service; Compact piping systems; Instrument or auxiliary lines; Socket-type pressure connections |
Commercial Note | Dimensions, heat treatment, machining allowance, and inspection scope can be arranged according to drawing and project specification. |
Standard Compliance — Dimensions, facing, drilling, and pressure class can be supplied according to the requested flange system and project standard.
Reliable Forged Base Material — Forged flange production improves material consistency compared with low-control alternatives and supports pressure-service confidence.
Machining Accuracy — Bore, facing, serration, bevels, and drilling can be machined to suit the intended application and inspection scope.
Wide Material and Standard Range — ASME, EN, DIN, JIS, and project-specific supply can be supported with suitable materials and pressure classes.
Project Documentation — EN 10204 3.1, marking, NDT reports, and third-party witness support can be arranged where required.
• Small-bore high-pressure service
• Compact piping systems
• Instrument or auxiliary lines
• Socket-type pressure connections
ASME B16.5 Socket Weld Flange can be supplied as a forging blank, heat-treated forging, rough-machined forging, or semi-finished part according to the customer’s process route. Where the project requires closer dimensional control, additional OD/ID/facing, journal, bore, or drilling work can be incorporated before shipment.



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