Slip-on Flanges have bored with a diameter slightly larger than the pipe; this helps it to slide\slip over the pipe. This ANSI B16.5 SORF Flange is then welded inside and outside too, with fillet welding. Alloy Steel Slip On Plate Flanges are thinner compared to other ranges, cost-effective and are easy to use in fabricated applications. We supply Carbon Steel Slip-on Raised Face Flanges in both raised face and at faced designs, to industries like agricultural, fertilizers, pharmaceutical, textile and for general engineering purposes
| Material Category | Available Grades |
|---|---|
| Stainless Steel Flanges | ASTM A182 / A240 F304, F304L, F304H, F316, F316L, F316Ti, F310, F310S, F321, F321H, F317, F347, F347H, F904L. |
| Duplex & Super Duplex Steel Flanges | ASTM/ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61. |
| Carbon Steel Flanges | ASTM/ASME A/SA 105, ASTM/ASME A350, ASTM A181 LF2, ASTM A516 Gr.70, ASTM A36, ASTM A694 F42, F46, F52, F60, F65, F70. |
| Low Temperature Carbon Steel Flanges | ASTM A350 LF2, LF3. |
| Alloy Steel Flanges | ASTM/ASME A/SA 182 & A387 F1, F5, F9, F11, F12, F22, F91. |
| Copper Alloy Flanges | ASTM SB61, SB62, SB151, SB152, UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30), C10100, C10200, C10300, C10800, C12000, C12200. |
| Nickel Alloy Flanges | ASTM SB564, SB160, SB472, SB162, Nickel 200 (UNS N02200), Nickel 201 (UNS N02201), Monel 400 (UNS N04400), Monel K500 (UNS N05500), Inconel 800 (UNS N08800), Inconel 825 (UNS N08825), Inconel 600 (UNS N06600), Inconel 625 (UNS N06625), Inconel 601 (UNS N06601), Hastelloy C276 (UNS N10276), Alloy 20 (UNS N08020). |
Our Slip On Flanges are used for cost-effective piping joints in low to medium pressure lines. We maintain focus on standards compliance, dimensional accuracy, and material traceability to support project and replacement requirements.
Industries Served: oil & gas, petrochemical, refineries, power generation, EPC projects, marine, water treatment, and general engineering.
Supply Regions: India, GCC/Gulf markets, and global export projects with commercial support for manufacturer, supplier, stockist, and exporter requirements.
Request a Quote: Share your size, pressure class, material grade, and quantity for faster offer turnaround.
Explore More: Flanges | Forged Fittings | Buttweld Fittings | Olets
Certified stainless steel billets are selected according to ASTM, ASME, and EN standards.
Billets are heated and forged into the required flange shape for maximum strength.
Precision machining creates the bore, facing, bolt holes, and required dimensions.
Stress relieving and solution annealing are performed whenever required.
PMI, dimensional inspection, hydrostatic testing, and NDT ensure product quality.
Flanges are cleaned, pickled, passivated, and finished as per customer requirements.
Each flange receives grade, size, heat number, and standard identification markings.
Products are packed securely with flange protectors, wooden pallets, and export-ready crates.
Are Slip-On flanges weaker than Weld Neck Flanges?
Yes, Slip-On flanges are generally calculated to have about two-thirds of the strength of Weld Neck flanges under internal pressure, and their life under fatigue is roughly one-third. Therefore, Slip-On flanges are favored for lower pressure applications and situations where precise alignment during installation is critical, as they can be easily slipped over the pipe and adjusted before welding.
What are the primary advantages of Slip-On Flanges?
Slip-On Flanges (SORF) are slid over the pipe before welding both inside and outside. They are lower in initial material cost than Weld Neck Flanges and require less precision when cutting the pipe, making them ideal for low-pressure systems and cooling water lines.
What pressure classes do you manufacture for Slip-On Flanges?
We manufacture and stock ASME B16.5 Slip-On Flanges predominantly in 150# and 300# pressure classes, as they are not typically recommended for high-pressure or highly hazardous environments.
Can I get Stainless Steel 316L Slip-On Flanges for chemical pipelines?
Yes! Gandhi Metal India supplies Stainless Steel grade 316L Slip-On Flanges specifically for petrochemical and chemical pipeline systems requiring enhanced corrosion resistance.