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What is a Slip-On Flange?
A Slip-On Flange (SO Flange) is a type of pipe flange that is slipped over the pipe and welded in place to create a strong and secure connection. These flanges are widely used in low-pressure applications due to their easy installation, cost-effectiveness, and versatility.
Slip-on flanges are commonly manufactured using stainless steel grades such as SS 304, SS 316, SS 321, SS 347, SS 310, and SS 904L, ensuring excellent corrosion resistance and durability in various industrial environments.
Why Choose Stainless Steel Slip-On Flanges?
Easy Installation & Cost-Effective
Slip-on flanges require less welding compared to other flange types, making them easy to install and cost-efficient for various piping systems.
Leak-Proof Connection
The double weld design (inside & outside) enhances the leak-proof integrity, making them ideal for fluid and gas pipelines.
Corrosion & Oxidation Resistance
Manufactured from high-quality stainless steel, slip-on flanges offer excellent resistance to rust, oxidation, and chemical exposure.
Versatile & Compatible
Suitable for a wide range of applications, including oil & gas, petrochemical, water treatment, and HVAC systems.
Available in Multiple Pressure Ratings
Slip-on flanges come in 150#, 300#, 600#, 900#, 1500#, and 2500# ratings, making them suitable for different pressure and temperature requirements.
Slip-On Flanges Manufacturer in India
As a trusted Slip-On Flanges Manufacturer in India, we provide:
High-quality SS Slip-On Flanges in various sizes & pressure ratings.
Customization options to meet industry-specific needs.
Third-party testing & certifications for quality assurance.
Global export and on-time delivery for bulk orders.
Applications of Slip-On Flanges
These flanges are widely used in industries requiring reliable and economical flange connections, including:
Oil & Gas Pipelines – Used in low-pressure flow lines.
Chemical Processing Plants – Resistant to corrosive chemicals.
Water Supply & Treatment Plants – Ideal for potable water and wastewater management.
HVAC & Fire Protection Systems – Common in industrial and commercial HVAC systems.
Food & Beverage Industry – Ensures hygienic processing in food-grade applications.
Key Features of Stainless Steel Slip-On Flanges
Lightweight & Easy to Weld – Simple to install, reducing labor costs.
Smooth Fluid Flow – Minimizes turbulence and ensures efficient flow.
Durable & Long-Lasting – Resistant to wear, corrosion, and chemical exposure.
Versatile Design – Compatible with various pipe materials and industrial systems.
Compliant with ASTM, ASME, and ANSI standards.
Specifications of Stainless Steel Slip-On Flanges
Specification | Details |
Material Grade | Stainless Steel 304, 316, 321, 347, 310, 904L |
Standard | ASTM A182 / ASME SA182 |
Size Range | ½” to 48” (DN15 to DN1200) |
Pressure Ratings | 150#, 300#, 600#, 900#, 1500#, 2500# |
Face Type | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
Connection Type | Slip-On (Inside & Outside Weld) |
Temperature Resistance | Suitable for moderate-temperature applications |
Corrosion Resistance | High resistance to oxidation, pitting, and chemical exposure |
Chemical Composition of Stainless Steel Slip-On Flanges
Element | Composition (%) |
Carbon (C) | 0.08 max (varies by grade) |
Manganese (Mn) | 2.00 max |
Phosphorus (P) | 0.045 max |
Sulfur (S) | 0.030 max |
Silicon (Si) | 1.00 max |
Chromium (Cr) | 16.0 – 21.0 |
Nickel (Ni) | 8.0 – 28.0 |
Molybdenum (Mo) | 2.00 – 5.00 (varies by grade) |
Copper (Cu) | 1.0 – 2.0 (in 904L) |
Mechanical Properties of Stainless Steel Slip-On Flanges
Property | Value |
Tensile Strength | 485 – 590 MPa (varies by grade) |
Yield Strength | 170 – 300 MPa |
Elongation | 30 – 40% |
Hardness (Brinell) | 217 max |
Hardness (Rockwell B) | 95 max |
Stainless Steel Slip-On Flanges Export Destinations
Region | Countries |
Middle East | UAE, Saudi Arabia, Qatar, Oman, Kuwait, Turkey |
Asia | India, Singapore, Malaysia, Thailand, Vietnam, South Korea, Japan |
South America | Argentina, Brazil, Chile, Colombia, Venezuela |
North America | USA, Canada, Mexico, Panama |
Europe | UK, Germany, France, Italy, Spain, Netherlands, Russia |
Africa | Nigeria, South Africa, Egypt, Algeria |
Stainless Steel Slip-On Flanges Supply in Indian States & Cities
State | Major Cities |
Maharashtra | Mumbai, Pune, Nashik, Nagpur |
Gujarat | Ahmedabad, Surat, Vadodara |
Tamil Nadu | Chennai |
Telangana | Hyderabad |
Karnataka | Bengaluru |
West Bengal | Kolkata |
Uttar Pradesh | Kanpur, Noida |
Andhra Pradesh | Vishakhapatnam, Vijayawada |
Union Territories | Delhi, Chandigarh |
Buy High-Quality Stainless Steel Slip-On Flanges in India
Looking for top-quality SS Slip-On Flanges? We offer a wide range of SO flanges with certified quality, corrosion resistance, and durability. Contact us today for competitive pricing and bulk orders!
1. Why are Slip-On Flanges preferred over Weld Neck Flanges?
Slip-On Flanges are more cost-effective and easier to install compared to Weld Neck Flanges. They require less welding, making them ideal for low-pressure applications where high strength is not a primary concern.
2. What are the key advantages of using Stainless Steel Slip-On Flanges?
- Lower installation cost due to simpler welding
- Easy alignment with pipes before welding
- Suitable for low- to medium-pressure applications
- Available in various sizes for versatile applications
3. What industries commonly use Stainless Steel Slip-On Flanges?
- Oil & Gas pipelines
- Water treatment plants
- Food & Beverage processing
- Petrochemical & chemical industries
- HVAC systems and fire protection piping
4. What are the differences between Slip-On Flanges and Socket Weld Flanges?
Slip-On Flanges allow the pipe to slide through before welding, making them easier to install, while Socket Weld Flanges have a recessed socket for the pipe, providing better strength and reduced leakage risk. Slip-On Flanges are used in low-pressure applications, whereas Socket Weld Flanges are preferred for high-pressure systems.
5. What are the common stainless steel grades used for Slip-On Flanges?
- SS 304 / 304L – General-purpose corrosion resistance
- SS 316 / 316L – Better resistance to chlorides and chemicals
- SS 321 – High-temperature applications
- SS 904L – Excellent corrosion resistance in acidic environments