SS 316 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 316 stainless steel (UNS S31600), they contain 2–3% molybdenum, improving resistance to pitting and crevice corrosion in many chloride-containing environments.
Metalloy Steel supplies SS 316 Slip-On Raised Face Flanges for industrial piping systems. Buyers can specify the required size, pressure class, flange standard, facing and material documentation. Contact us with your requirements to enquire about availability and pricing from an SS 316 SORF Flanges Supplier in India.
| Parameter | Specifications |
|---|---|
| Product Name | SS 316 SORF Flanges |
| Flange Type | Slip-On Raised Face |
| Material Grade | Stainless Steel 316 |
| UNS Designation | S31600 |
| Forging Material Specification | ASTM A182 / ASME SA182 |
| Common Dimensional Standards | ASME B16.5; ASME B16.47 |
| Other Standards | EN 1092-1, DIN, BS 10 and other specified standards, subject to design compatibility |
| Nominal Size | ½ inch (15 NB) to 48 inches (1200 NB) |
| Pressure Class | ASME Class 150, 300, 600, 900, 1500 and 2500, where applicable; PN ratings depend on the specified standard |
| Facing | Raised Face (RF) for the specified SORF configuration |
| Material Identification | Type 316 stainless steel, UNS S31600 |
| Standard | UNS | Werkstoff Nr. | JIS | BS | EN | AFNOR |
|---|---|---|---|---|---|---|
| Equivalent Designation | S31600 | 1.4401 | SUS 316 | 316S31 | X5CrNiMo17-12-2 | Z7CND17-11-02 |
| Element | Composition (% by Weight) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.045 max |
| Sulphur (S) | 0.030 max |
| Chromium (Cr) | 16.00–18.00 |
| Nickel (Ni) | 10.00–14.00 |
| Molybdenum (Mo) | 2.00–3.00 |
| Iron (Fe) | Balance |
| Property | Typical Reference Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Range | Approx. 1370–1400°C |
| Tensile Strength | Approx. 515 MPa (75,000 psi) |
| Yield Strength (0.2% Offset) | Approx. 205 MPa (30,000 psi) |
The slip-on bore allows the pipe to enter the flange before welding, helping fabricators align components during piping assembly.
The raised face provides a designated gasket seating area when matched with compatible gasket materials, bolting and flange specifications.
SS 316 can be welded using suitable procedures and filler materials. Post-weld cleaning and appropriate procedures help preserve corrosion performance.
Its alloy composition makes it a common material choice for selected chemical, water-treatment, marine and process-piping systems where the service conditions are compatible.
Buyers can define the material grade, dimensional standard, nominal size, pressure class and inspection requirements to align procurement with the piping design.
| Industry | Applications |
|---|---|
| Chemical Processing | Compatible chemical-transfer lines, process piping and equipment connections |
| Marine & Coastal Facilities | Selected seawater-adjacent utility lines and coastal process systems, subject to chloride exposure assessment |
| Pharmaceutical Manufacturing | Utility piping and compatible process-equipment connections |
| Food & Beverage Processing | Product-transfer lines, washdown systems and process utilities where the material and finish meet hygiene requirements |
| Water Treatment | Selected treatment-system piping and equipment connections |
| Oil & Gas | Compatible utility and process lines where the design specification permits SS 316 |
| Pulp & Paper | Selected chemical-handling and process-water connections |
| Industrial Manufacturing | Pump connections, tanks, skids and general process-piping assemblies |
Metalloy Steel can discuss documentation and inspection requirements for SS 316 SORF Flanges, subject to availability and the agreed purchase specification.
EN 10204 Type 3.1 documentation, where available and agreed.
Review of the material certificate or testing as specified in the purchase order.
Applicable tensile and other mechanical tests according to the governing material specification.
Verification of flange dimensions, thickness, bore, bolt-hole arrangement and facing against the specified standard.
Assessment of visible surface condition and workmanship against agreed requirements.
Can be discussed when requested and confirmed before supply.
Can be arranged for discussion where specified and confirmed before the order is finalised.
SS 316 SORF Flanges are Slip-On Raised Face flanges made from Type 316 stainless steel. The pipe fits inside the flange bore and is typically secured using fillet welds.
ASTM A182/ASME SA182 is commonly specified for forged stainless steel flanges. Dimensional requirements depend on the selected standard, such as ASME B16.5.
Sizes and pressure classes depend on the applicable standard and product availability. Share your required dimensions, pressure class and operating conditions when enquiring.
SS 316 offers better pitting resistance than SS 304 in many chloride environments but can still experience localized corrosion in seawater. Confirm suitability against actual service conditions.
Share your required size, pressure class, flange standard, facing, quantity and documentation requirements. Metalloy Steel can discuss availability and pricing based on your specifications.
Metalloy Steel serves buyers looking for an SS 316 SORF Flanges Supplier and Stockist in India. Send your required dimensions, pressure class, applicable standard, quantity and documentation requirements to enquire about product availability and obtain a quotation.
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