SS 304 SORF Flanges (Slip-On Raised Face Flanges) are forged stainless steel flanges that fit over pipes and are typically secured with fillet welds. Made from Type 304 stainless steel (UNS S30400), they contain 18–20% chromium and 8–10.5% nickel, offering good weldability, formability and resistance to many industrial environments.
Metalloy Steel supplies SS 304 Slip-On Raised Face Flanges for piping contractors, equipment manufacturers and industrial buyers. Available specifications depend on size, pressure class, facing and dimensional standard. Contact us with your drawings or requirements to enquire about availability and pricing from an SS 304 SORF Flanges Supplier in India.
| Parameter | Specifications |
|---|---|
| Product Name | SS 304 SORF Flanges |
| Flange Type | Slip-On Raised Face |
| Material Grade | Stainless Steel 304 |
| UNS Designation | S30400 |
| Forging Material Specification | ASTM A182 / ASME SA182 |
| Common Flange Standard | ASME B16.5; ASME B16.47 |
| Nominal Size | 1/2" (15 NB) to 48" (1200 NB) |
| Pressure Class | Class 150, 300, 600, 900, 1500 and 2500 |
| Facing | Raised Face (RF) |
| Standard | UNS | Werkstoff Nr. | JIS | EN | BS | AFNOR | GOST |
|---|---|---|---|---|---|---|---|
| Equivalent Designation | S30400 | 1.4301 | SUS 304 | X5CrNi18-10 | 304S31 | Z7CN18-09 | 08Х18Н10 |
| Element | Composition (% by weight) |
|---|---|
| Carbon (C) | 0.08 max. |
| Manganese (Mn) | 2.00 max. |
| Silicon (Si) | 0.75 max. |
| Phosphorus (P) | 0.045 max. |
| Sulphur (S) | 0.030 max. |
| Chromium (Cr) | 18.0–20.0 |
| Nickel (Ni) | 8.0–10.5 |
| Property | Value |
|---|---|
| Density | 7.93 g/cm³ |
| Melting Range | Approx. 1400–1450°C |
| Tensile Strength | Approx. 515 MPa (75,000 psi) min. |
| Yield Strength (0.2% offset) | Approx. 205 MPa (30,000 psi) min. |
The slip-on design allows the pipe to fit inside the flange bore, helping with positioning before welding.
The connection design suits many general-purpose piping assemblies where the specified pressure and service conditions permit its use.
The raised face provides a defined contact area for the gasket when matched with compatible flange facing, bolting and gasket specifications.
Its chromium-rich composition provides resistance to atmospheric corrosion and many mildly corrosive media.
The accessible flange joint allows visual examination of the connection and gasket area during maintenance, subject to the installed configuration.
| Industry | Applications |
|---|---|
| Food Processing | Process-water lines, product-transfer piping and utility connections |
| Commercial Kitchens | Water supply lines, washdown systems and equipment connections |
| Pharmaceutical Manufacturing | Utility piping and compatible process-system connections |
| Chemical Processing | Piping for compatible chemicals and non-severe process environments |
| Water Treatment | Water distribution, filtration and treatment-system piping |
| Oil & Gas Facilities | Utility lines and selected non-severe service connections, subject to design requirements |
| HVAC & Building Services | Chilled-water lines, utility piping and equipment connections |
| General Manufacturing | Pump connections, tanks, pipe assemblies and industrial utility systems |
Metalloy Steel can discuss documentation and inspection requirements for SS 304 SORF Flanges, subject to availability and the agreed purchase specification.
EN 10204 Type 3.1 documentation, where available and agreed for the supply.
Review of the material certificate or testing as specified.
Tensile and other applicable mechanical tests according to the governing material specification.
Verification of flange dimensions, bore, thickness, bolt-hole arrangement and facing against the specified standard.
Assessment of visible surface condition and workmanship against the agreed requirements.
Where requested and available.
Can be discussed when specified in the purchase order and confirmed before supply.
SS 304 SORF Flanges are Slip-On Raised Face flanges made from Type 304 stainless steel. They fit over the pipe and are typically secured using fillet welds.
ASTM A182/ASME SA182 is commonly specified for forged stainless steel flanges. Dimensional requirements depend on the applicable flange standard, such as ASME B16.5.
SORF flanges fit over the pipe and are typically attached using fillet welds. WNRF flanges feature a tapered hub and are generally joined to the pipe using a butt weld.
Metalloy Steel serves buyers looking for an SS 304 SORF Flanges Supplier and Stockist in India. Share your required size, pressure class, facing, material standard and quantity to enquire about availability and obtain a quotation.
Enquire Now