SS 304 Slip-On Flanges

SS 304 Slip-On Flanges (SO Flanges) are among the most popular and easiest-to-install flange types. They are designed to simply slip over the end of the pipe, allowing the user to easily align the bolt holes before welding. This feature makes them highly advantageous in applications where precise field alignment is difficult. The flange is secured to the pipe by two fillet welds—one on the inside and one on the outside—providing adequate strength for low to medium-pressure services. Manufactured via forging, the SS 304 material ensures excellent general corrosion resistance against water, mild chemicals, and atmospheric conditions. Key applications include general water service, cooling water lines, low-pressure gas, and distribution systems. Zeron Fasteners manufactures and supplies high-quality SS 304 slip-on flanges, ensuring dimensional accuracy and compliance with ASME B16.5 standards for reliable and cost-effective pipeline connections.

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SS 304 Slip-On Flanges Manufacturer in India

SS 304 Slip-On Flange Chemical Composition

Element Composition (%)
Carbon (C) Max 0.08
Chromium (Cr) 18.00 to 20.00
Nickel (Ni) 8.00 to 10.50
Manganese (Mn) Max 2.00
Silicon (Si) Max 1.00
Phosphorus (P) Max 0.045
Sulfur (S) Max 0.030

SS 304 Slip-On Flange Standards & Pressure Classes

Specification Details
Design Standard ASME B16.5
Material Spec ASTM A182 F304
Pressure Classes 150#, 300#, 600#
Joint Type Double Fillet Welds (Internal and External)

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