Weld Neck Flanges
Butt welded flange for demanding service. Confirm the exact material, dimensions, pressure class, schedule and documentation against your project requirement.
Specification framework
The values above are industry-standard reference points. Availability, exact dimensions, grade, standard edition, testing and documentation are confirmed per RFQ.
What is a Weld Neck Flange?
A weld neck flange has a tapered hub that is butt welded to the pipe, transferring stress into the pipe wall. It is the usual choice for higher pressure, cyclic or elevated-temperature service.
Applications
- — Flanged process connections
- — Piping maintenance and shutdown work
- — Pressure equipment and utility systems
How supply is handled
Omegha Steel is a Kolkata-based manufacturing firm. For each enquiry the requirement is reviewed against the stated standard, grade, size and application, and the documentation available for that supply — including mill test certification and any inspection requirement — is confirmed in writing before order. Nothing is claimed here that is not agreed for your specific order.
To quote accurately we need
- — Size / NPS or NB, and schedule or thickness
- — Material grade and applicable standard
- — Pressure class or rating, where applicable
- — Quantity and required delivery date
- — Documentation and inspection requirement
Weld Neck Flanges — common questions
What is a weld neck flange used for?
A weld neck flange has a tapered hub that is butt welded to the pipe, transferring stress into the pipe wall. It is the usual choice for higher pressure, cyclic or elevated-temperature service.
Which standards apply to this product?
ASME B16.5 — pipe flanges and flanged fittings, NPS 1/2–24; ASME B16.47 — large-diameter flanges, NPS 26–60. The applicable standard and its edition are confirmed for each enquiry.
Which materials and grades are available?
ASTM A105 — carbon steel forgings; ASTM A182 F304 / F304L / F316 / F316L — stainless steel; ASTM A350 LF2 — low-temperature carbon steel. Availability of a specific grade is confirmed against your requirement.
What size range can be supplied?
Including sizes up to 8000 NB through our supplier network; exact standard, pressure class, facing and dimensions to be confirmed per enquiry.
Can mill test certificates be provided?
The documentation available for a given supply — including mill test certification and any third-party inspection requirement — is confirmed in writing at quotation stage.
Do you supply outside Kolkata?
Enquiries from across West Bengal and India are welcome. Delivery timelines and freight are quoted against the destination and quantity.
How do I request a quotation?
Send the size, material, standard, quantity and delivery requirement through the RFQ form or on WhatsApp, and the enquiry will be reviewed and quoted.
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