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