Product Introduction

Stainless Steel Weld Neck Flange is designed for project supply. Stainless steel welding neck flange with a forged tapered hub, high pressure strength, and corrosion resistance for demanding chemical, seawater, food, and energy pipelines.

Key Features

• Integral forged construction with a high tapered neck improves pressure resistance and bending strength.

• 304/316 stainless steel resists acids, alkalis, seawater, and chemical corrosion.

• Precision-machined sealing grooves work with gaskets for dependable high-pressure sealing.

• Butt-weld bevels distribute weld stress evenly and suit high-temperature or high-pressure pipelines.

Technical Specifications

• Material: 304, 316, and 316L stainless steel

• ASTM F304/F304L/F316/F316L/F321

• EN 1.4301/1.4307/1.4401/1.4404/1.4571

• JIS SUS304/SUS316 series

• Standards: GB/T 9113, GB/T 20592

• ASME B16.5/B16.47/ASTM A182

• EN 1092-1

• DIN 2630-2638

• JIS B2220

• GOST 12816/12820/33259

• Pressure Rating: PN16, PN25, PN40

• ASME Class 150 to Class 900

• Nominal Diameter: DN25-DN1200 with GB and ASME dimensions available

• Surface: Precision machining with pickling and passivation

Applications

• High-pressure chemical pipelines for acidic, alkaline, or corrosive media Seawater desalination, offshore platforms, and coastal water-transfer systems Food and pharmaceutical high-temperature sterile fluid piping Energy, thermal oil, and steam transmission pipelines.

Ordering & Quality Documentation

For quotation, specify the fitting type, steel grade, nominal size, wall thickness or schedule, end preparation or connection, applicable dimensional standard, quantity and destination. Confirm compatibility with the adjoining pipework and project specification.

For project procurement, specify any required material test certificate (MTC), inspection report, certificate of origin or other shipment documentation in your inquiry. Document type, availability and applicability must be confirmed for the exact material grade, shipment and order; no blanket certification is implied.

Product FAQ

Q: How should I specify a compatible fitting?

A: Provide the nominal size, material grade, wall thickness or schedule, connection and applicable fitting standard.

Q: How are fitting documents confirmed?

A: State the required material and inspection documentation when requesting a quotation; confirm availability before ordering.

Request a Quote

Send MGTSP the required product specification, quantity and destination for a quotation. Any listed grades, processing options, inspection documents and delivery terms remain subject to order confirmation.