SS 420 Flanges

The SS 420 Flange is a critical forging component used to connect pipe sections, valves, pumps, and other equipment, creating a rigid and easily detachable joint. Manufactured from Martensitic Grade 420 Stainless Steel, these flanges are heat-treatable and selected for applications where superior hardness and wear resistance are required, often surpassing the capabilities of common austenitic stainless steels. Common types include Weld Neck Flanges, Slip-On Flanges, and Blind Flanges. Zeron Fasteners produces these components using advanced forging techniques, ensuring the dense material structure and excellent grain flow necessary to withstand high pressure and thermal cycling. SS 420 Flanges are highly reliable in demanding environments such as oil and gas processing, power generation, and chemical plants where robust, high-integrity connections are paramount.

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SS 420 Flanges Manufacturer in India

SS 420 Flanges Chemical Composition

Element Composition (%)
Carbon (C) 0.15 min
Chromium (Cr) 12.00 – 14.00
Manganese (Mn) 1.00 max
Silicon (Si) 1.00 max
Phosphorus (P) 0.040 max
Sulphur (S) 0.030 max
Iron (Fe) Balance

SS 420 Flanges Mechanical Properties

Property Value (Heat-Treated)
Tensile Strength 655 MPa min
Yield Strength, 0.2% Proof 450 MPa min
Hardness (Brinell) 207 HBW min
Elongation After Fracture 18 % min
Reduction of Area 30 % min

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