Stainless Steel Expander Flanges – Manufacturer & Supplier in India
A Long Weld Neck Flange (LWN Flange) is an extended version of a weld neck flange, designed for high-pressure and high-temperature applications. It features a longer tapered hub, which provides extra reinforcement to the pipeline, reducing stress concentration. These flanges are commonly used in boilers, heat exchangers, pressure vessels, and industrial piping systems.
Long weld neck flanges are available in various types based on industry requirements:
We are a leading Long Weld Neck Flange manufacturer in India, offering:
| Specification | Details |
|---|---|
| Material Grade | Stainless Steel, Carbon Steel, Alloy Steel |
| 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 | Welded |
| Application | High-pressure and high-temperature piping systems |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.03 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.00 – 3.00 |
| Property | Value |
|---|---|
| Tensile Strength | 485 MPa (min) |
| Yield Strength | 170 MPa (min) |
| Elongation | 40% (min) |
| Hardness (Brinell) | 217 max |
| Hardness (Rockwell B) | 95 max |
| Region | Countries |
|---|---|
| Middle East | UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain |
| Asia | Japan, South Korea, Singapore, Malaysia, Thailand, Vietnam |
| North America | USA, Canada, Mexico |
| Europe | Germany, UK, France, Italy, Spain, Russia |
| South America | Brazil, Argentina, Chile, Colombia, Peru |
| Africa | South Africa, Egypt, Nigeria, Kenya, Algeria |
| Australia & Oceania | Australia, New Zealand |
| State | Major Cities |
|---|---|
| Maharashtra | Mumbai, Pune, Nagpur, Nashik, Aurangabad |
| Gujarat | Ahmedabad, Surat, Vadodara, Rajkot, Bhavnagar |
| Tamil Nadu | Chennai, Coimbatore, Madurai, Tiruchirappalli |
| Karnataka | Bengaluru, Mangalore, Mysuru, Hubli-Dharwad |
| Delhi NCR | New Delhi, Noida, Gurugram, Faridabad, Ghaziabad |
| West Bengal | Kolkata, Howrah, Durgapur, Asansol, Siliguri |
| Uttar Pradesh | Kanpur, Lucknow, Agra, Varanasi, Meerut |
| Telangana | Hyderabad, Warangal, Karimnagar, Nizamabad |
| Andhra Pradesh | Visakhapatnam, Vijayawada, Guntur, Tirupati |
| Rajasthan | Jaipur, Jodhpur, Udaipur, Kota, Ajmer |
Looking for premium Stainless Steel Long Weld Neck Flanges? Contact us today for competitive prices, bulk orders, and customized solutions!