SS 430 Weld Neck Flanges

The SS 430 Weld Neck Flange (WNRF) is a specialized forging component characterized by its long tapered hub that is butt-welded to the pipe . This design provides superior structural integrity and smooth stress transition, making it the preferred choice for high-integrity, high-temperature, and moderate-pressure applications. Manufactured from Ferritic Grade 430 Stainless Steel (UNS S43000), these flanges are selected for their excellent oxidation resistance and good general corrosion resistance in less aggressive environments. Importantly, Grade 430 is magnetic. Zeron Fasteners produces these critical components using advanced forging techniques, ensuring a dense material structure and excellent grain flow along the hub. SS 430 Weld Neck Flanges are widely trusted in sectors like exhaust systems, furnace construction, and general plant utilities where heat resistance and a cost-effective stainless solution are key requirements.

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SS 430 Weld Neck Flanges Manufacturer in India

SS 430 Weld Neck Flanges Chemical Composition

SS 430 Weld Neck Flanges Chemical Composition & Table in html

Element Composition (%)
Carbon (C) ≤ 0.12
Chromium (Cr) 16.00 - 18.00
Manganese (Mn) ≤ 1.00
Silicon (Si) ≤ 1.00
Phosphorus (P) ≤ 0.040
Sulphur (S) ≤ 0.030
Iron (Fe) Balance

SS 430 Weld Neck Flanges Mechanical Properties

SS 430 Weld Neck Flanges Mechanical Properties & Table in html

Property Minimum Value (Annealed) Unit
Tensile Strength ($R_m$) 450 MPa
Yield Strength ($R_{p0.2}$) 205 MPa
Hardness (Brinell, HB) ≤ 217 HBW
Elongation After Fracture ($A$) 22 %
Reduction of Area ($Z$) 45 %

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