Repute Steel & Engineering Co. is a trusted manufacturer, stockist, and exporter of high-quality stainless steel long weld neck flanges, serving industries across the globe. Known for their exceptional durability, strength, and corrosion resistance, long weld neck flanges are integral components used in demanding industrial applications, including in piping systems for petrochemical, oil and gas, power generation, and chemical industries. Repute Steel & Engineering Co. specializes in providing a diverse range of long weld neck flanges that meet international quality standards and cater to the specific needs of clients across regions such as Oman, Saudi Arabia, Qatar, the United Arab Emirates (UAE), and the USA.
The long weld neck flange is designed to ensure superior strength and stability in the pipeline connection, making it a preferred choice for high-pressure and high-temperature applications. These flanges have a long tapered neck that helps in distributing the stresses evenly, minimizing the risk of joint failure and enhancing the overall safety of the piping system. Repute Steel & Engineering Co. manufactures these flanges in various grades, including 304, 316, 316L, Duplex, and Super Duplex stainless steel, all known for their outstanding resistance to corrosion, oxidation, and rust, even in extreme environments.
Repute Steel & Engineering Co. prides itself on its ability to provide custom-made stainless steel long weld neck flanges to suit specific customer requirements. The company offers a wide variety of sizes, pressure classes, and end types, allowing clients to choose the ideal product that fits their piping systems. Whether it’s custom dimensions, unique pressure ratings, or material grades, the company ensures that each flange is precisely manufactured according to customer specifications, ensuring a perfect fit and optimum performance in all applications.
Specification of Stainless steel flat flanges
| Specification | Description |
|---|---|
| Material Grades | 304, 304L, 316, 316L, 310, 321, 347, Duplex, Super Duplex Stainless Steel |
| Standard | ANSI, ASME, DIN, JIS, BS, EN, IS, AWWA |
| Size Range | 1/2" to 36" (DN 15 to DN 900) |
| Thickness | 10mm to 50mm (custom thickness available as per requirements) |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Male/Female |
| Surface Finish | Mirror Finish, Matte Finish, Polish Finish, Pickled, or as per customer request |
| Temperature Range | -200°C to 800°C (depending on material grade) |
| End Type | Flat (FF), Raised Face (RF), Tongue and Groove, Butt Weld, Threaded, etc. |
| Application | Piping systems, pressure vessels, chemical and petrochemical industries, water treatment, food processing, oil and gas industries |
| Certifications | ISO 9001:2015, PED, CE, AD2000, IBR, NACE, API |
| Finish Options | Plain, Polished, Shot Blasted, Satin |
| Packing | Wooden boxes, Pallets, as per export standards |
| Tolerance | As per ASTM A182, ANSI B16.5, or customized to client needs |
As an exporter, Repute Steel & Engineering Co. serves a global clientele, including key markets in Oman, Saudi Arabia, Qatar, the UAE, and the USA. The company has built a strong reputation for its on-time delivery and efficient logistics, which are backed by a state-of-the-art manufacturing facility and a skilled workforce. Whether customers require bulk orders or specific flanges for specialized applications, Repute Steel & Engineering Co. ensures timely shipments and rigorous quality control checks to meet the highest industry standards.
Repute Steel & Engineering Co.’s commitment to innovation, quality, and customer satisfaction continues to make it a leading choice for stainless steel long weld neck flanges. By constantly improving its processes and incorporating the latest technological advancements, the company remains at the forefront of the flange manufacturing industry, delivering high-quality, reliable products to customers worldwide. With a strong focus on building long-term relationships, Repute Steel & Engineering Co. is your trusted partner for stainless steel long weld neck flanges in global markets.
Chemical Composition of Stainless steel flat flanges
| Grade | C (Carbon) | Mn (Manganese) | Si (Silicon) | P (Phosphorus) | S (Sulfur) | Cr (Chromium) | Ni (Nickel) | Mo (Molybdenum) | Fe (Iron) |
|---|---|---|---|---|---|---|---|---|---|
| 304 | 0.08% max | 2.00% max | 0.75% max | 0.045% max | 0.030% max | 18.00–20.00% | 8.00–10.50% | - | Balance |
| 304L | 0.03% max | 2.00% max | 0.75% max | 0.045% max | 0.030% max | 18.00–20.00% | 8.00–12.00% | - | Balance |
| 316 | 0.08% max | 2.00% max | 0.75% max | 0.045% max | 0.030% max | 16.00–18.00% | 10.00–14.00% | 2.00–3.00% | Balance |
| 316L | 0.03% max | 2.00% max | 0.75% max | 0.045% max | 0.030% max | 16.00–18.00% | 10.00–14.00% | 2.00–3.00% | Balance |
| 310 | 0.25% max | 2.00% max | 1.00% max | 0.045% max | 0.030% max | 24.00–26.00% | 19.00–22.00% | - | Balance |
| 321 | 0.08% max | 2.00% max | 1.00% max | 0.045% max | 0.030% max | 17.00–19.00% | 9.00–12.00% | - | Balance |
| 347 | 0.08% max | 2.00% max | 1.00% max | 0.045% max | 0.030% max | 17.00–19.00% | 9.00–12.00% | 0.50% max | Balance |
| Duplex 2205 | 0.03% max | 2.00% max | 1.00% max | 0.03% max | 0.01% max | 21.00–23.00% | 4.50–6.50% | 3.00–5.00% | Balance |
| Super Duplex 2507 | 0.03% max | 1.20% max | 1.00% max | 0.03% max | 0.01% max | 24.00–26.00% | 6.00–8.00% | 3.00–5.00% | Balance |
Mechanical Properties of Stainless steel flat flanges
| Property | 304 Stainless Steel | 304L Stainless Steel | 316 Stainless Steel | 316L Stainless Steel | 310 Stainless Steel | 321 Stainless Steel | 347 Stainless Steel | Duplex 2205 | Super Duplex 2507 |
|---|---|---|---|---|---|---|---|---|---|
| Tensile Strength | 520-720 MPa | 520-720 MPa | 520-720 MPa | 520-720 MPa | 515-720 MPa | 515-720 MPa | 515-720 MPa | 620-850 MPa | 700-1000 MPa |
| Yield Strength | 205 MPa min | 170 MPa min | 205 MPa min | 170 MPa min | 205 MPa min | 205 MPa min | 205 MPa min | 450 MPa min | 550 MPa min |
| Elongation (in 50mm) | 40% min | 40% min | 40% min | 40% min | 40% min | 40% min | 40% min | 25-40% | 25-40% |
| Hardness (HB) | 201 max | 201 max | 201 max | 201 max | 201 max | 201 max | 201 max | 290-350 HB | 300-350 HB |
| Impact Toughness (Charpy) | 70 J min | 70 J min | 70 J min | 70 J min | 100 J min | 100 J min | 100 J min | 150 J min | 150 J min |
| Modulus of Elasticity | 193 GPa | 193 GPa | 193 GPa | 193 GPa | 200 GPa | 200 GPa | 200 GPa | 200 GPa | 200 GPa |
| Poisson's Ratio | 0.27-0.30 | 0.27-0.30 | 0.27-0.30 | 0.27-0.30 | 0.27-0.30 | 0.27-0.30 | 0.27-0.30 | 0.27-0.30 | 0.27-0.30 |
| Thermal Expansion | 16.0 × 10^-6 /°C | 16.0 × 10^-6 /°C | 16.0 × 10^-6 /°C | 16.0 × 10^-6 /°C | 17.0 × 10^-6 /°C | 17.0 × 10^-6 /°C | 17.0 × 10^-6 /°C | 17.0 × 10^-6 /°C | 16.0 × 10^-6 /°C |
| Thermal Conductivity | 16.2 W/m·K | 16.2 W/m·K | 16.2 W/m·K | 16.2 W/m·K | 14.2 W/m·K | 14.2 W/m·K | 14.2 W/m·K | 20.0 W/m·K | 20.0 W/m·K |
Countries we have exported our products to
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Countries we have exported our products to
Turkey, Thailand, Bulgaria, Serbia, Mexico, Estonia, Trinidad & Tobago,Tunisia, New Zealand, Indonesia, Puerto Rico, Ireland, India, Morocco, Brazil, Lebanon, Hong Kong, Jordan, Ukraine, Switzerland, Czech Republic, Lithuania, Sri Lanka, Greece, Taiwan, Zimbabwe, Algeria, Romania, Mexico, Ghana, Italy, Philippines, Spain, United Kingdom, Finland, Azerbaijan, Japan, Macau, Israel, Saudi Arabia, Kenya, Bhutan, Poland, Poland, Costa Rica, Kuwait, Singapore, Pakistan, France, Colombia, Tibet, Bolivia, Portugal, Iraq, Australia, Kazakhstan, Nepal, Mongolia, Gambia, Malaysia, Chile, Germany, Slovakia, China, Bahrain, Denmark, Angola, Afghanistan, Peru, Austria, Ecuador, Gabon, Croatia, South Africa, Sweden, Chile, Hungary, United Arab Emirates, Argentina, Bangladesh, Oman, Egypt, United States, Belgium, Canada, Namibia, Norway, Qatar, Belarus, Netherlands,manufacturer stockist and exporter of Stainless steel flat flanges in Bengaluru,manufacturer stockist and exporter of Stainless steel flat flanges in Chennai,manufacturer stockist and exporter of Stainless steel flat flanges in Hyderabad,manufacturer stockist and exporter of Stainless steel flat flanges in Gujarat,manufacturer stockist and exporter of Stainless steel flat flanges in Pune