Stainless Steel Slip-On Flanges (SORF)
Raj Metals is a premier manufacturer and supplier of high-quality Stainless Steel Slip-On Flanges (SORF), engineered for optimal efficiency in piping assemblies. Our SS SORF flanges are precision-machined with a bore slightly larger than the pipe's outer diameter, facilitating a seamless slide-over installation that is reliably secured through fillet welds at both the hub and the face. By utilizing -grade stainless steel—such as 304, 304L, 316, and 316L—our flanges provide superior corrosion resistance, making them ideal for chemical processing, water treatment, and food-grade piping systems. Designed for cost-efficiency and reduced installation time, our forged stainless steel flanges ensure robust structural integrity and leak-proof performance even in challenging industrial environments.
Key Features of Our SS Slip-On Flanges
✓ Precise Bore for Easy Pipe Alignment & Rapid Installation
✓ Cost-Effective Design Reducing Fabrication & Welding Time
✓ Excellent Corrosion Resistance for Chemical & Process Piping
✓ High-Strength Forged SS Construction for Leak-Proof Reliability
Product Specifications
| Parameter |
Details |
| Product Type |
SS Slip-On Raised Face (SORF) / Flat Face (SOFF) |
| Size Range |
1/2" NB to 48" NB |
| Pressure Class |
150#, 300#, 600#, 900# (PN6 to PN64) |
| Face Type |
Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Manufacturing Type |
Precision Forged |
| Surface Finish |
Pickled, Bright Polished, or Standard Mill Finish |
| Standard Compliance |
ANSI/ASME B16.5, B16.47 Series A & B, DIN, EN 1092-1 |
| Testing |
PMI, Ultrasonic Test, Dye Penetrant (DP), Dimensional Check |
| Certification |
MTC as per EN 10204 3.1, NACE MR0175 Compliance |
SS Slip-On Flanges Size Chart
| Nominal Size |
Pressure Class |
Facing |
Recommended Use |
| 1/2" - 2" |
150# - 600# |
RF / FF / RTJ |
Instrumentation, small-bore process lines |
| 2-1/2" - 8" |
150# - 900# |
RF / FF / RTJ |
Utility lines, water treatment, general process |
| 10" - 24" |
150# - 600# |
RF / RTJ |
Main plant piping, refinery flow lines |
| Above 24" |
Class 150# / 300# |
Custom |
Heavy-duty infrastructure piping |
| Custom Requirement |
Custom sizes, special SS grades, and drawing-based fabrication available. |
Industry Applications
Water Filtration & Utility Lines
Chemical & Processing Plants
