Slip-On Flanges
What are Slip-On Flanges?
Slip-On Flanges are flat, round discs that are slipped over the end of a pipe and then welded in place from both inside and outside, offering enhanced strength and leak resistance. These flanges are widely used in low-pressure, non-critical systems where quick assembly and alignment are essential.
Asiad Steel Industries is a leading manufacturer and exporter of high-quality Slip-On Flanges designed for durability and reliability in a wide range of industrial applications.
Key Features
- Easy Installation – Slips over the pipe, making alignment simple before welding.
- Double Welded – Welded both inside and outside for improved strength.
- Versatile Usage – Compatible with different pipe sizes and pressure classes.
- Corrosion-Resistant – Available in stainless, carbon, and alloy steels with protective finishes.
- Industry Compliant – Manufactured as per ASME, ANSI, DIN, and EN standards.
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Sizes | ½” to 48” (DN15–DN1200) |
| Pressure Ratings | Class 150, 300, 600, PN10, PN16 |
| Material Grades | SS 304, 316, 321, 347, CS A105, Alloy Steel |
| Face Type | RF, FF, RTJ |
| Standards | ASME B16.5, BS 4504, EN 1092-1, DIN 2576 |
| Manufacturing Type | Forged, Machined |
| Property | Value |
|---|---|
| Tensile Strength | 485 – 700 MPa |
| Yield Strength | 250 – 450 MPa |
| Elongation | 20% – 30% |
| Hardness | 120 – 250 HB |
| Temperature Range | -50°C to +600°C |
| Element | Composition (%) |
|---|---|
| Carbon | 0.08 – 0.30 |
| Manganese | 0.50 – 1.50 |
| Silicon | 0.15 – 0.75 |
| Chromium | 17.0 – 20.0 (SS) |
| Nickel | 8.0 – 12.0 (SS) |
| Molybdenum | 2.0 – 3.0 (for 316) |
| Sulfur | ≤ 0.030 |
| Phosphorus | ≤ 0.040 |
| Iron | Balance |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A105, A182 F304/F316 |
| ASME | B16.5 |
| DIN | 1.4301 / 1.4401 / 1.5415 |
| EN | X5CrNi18-10 / X5CrNiMo17-12-2 |
| JIS | SUS 304 / SUS 316 |
| Flange Size (inches) | Pressure Class | Approx. Weight (kg/pc) |
|---|---|---|
| 2” | 150# | 3.10 |
| 4” | 150# | 6.90 |
| 6” | 300# | 19.60 |
| 8” | 300# | 28.20 |
| 12” | 600# | 65.00 |
Applications of Slip-On Flanges
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
Where are slip-on flanges commonly used?
Slip-on flanges are used in systems that require frequent inspection and maintenance, including low-pressure pipelines and cooling water systems.
Are slip-on flanges suitable for high-pressure applications?
They are generally used for low to medium-pressure systems; for higher pressures, welded neck flanges are preferred.
Do slip-on flanges support both flat and raised face designs?
Yes, they are available with flat face (FF) and raised face (RF) configurations based on application.
Can slip-on flanges be customized?
Absolutely. Asiad Steel Industries offers slip-on flanges with custom drilling, dimensions, and coatings as required.
