LONG WELD NECK FLANGES / LWNRF / RFLWN / LWNFF / FFLWN
Long Weld Neck (LWN) Flanges are an essential component in many piping systems. These flanges are designed to withstand high pressure, temperature, and stress, making them ideal for use in various industries such as oil and gas, chemical, and energy. If you're involved in any of these industries or a related field, it's crucial to understand the types, sizes, and materials of LWNRF flanges available in the market. We will provide you with a comprehensive overview of everything you need to know about RFLWN flanges. From their features and benefits to their applications, installation, and maintenance, this guide covers it all. Whether you're a beginner or an experienced professional, we will help you make informed decisions when selecting and using LWNFF flanges for your projects. So, let's dive in and explore the world of Long Weld Neck Flanges together!
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Long Weld Neck Flanges have a hub that extends from the flange's flat surface, which helps in accommodating the pipes more easily. FFLWN are a specialty flange which are extensively used in higher temperatures in oil and gas industry. They are also used in petroleum and chemical industries as they can operate under fluctuating temperature ranges. Tesco Steel & Engineering manufacture a wide range of high quality Long Weld Neck Flanges in India. We offer these flanges in ASME/ANSI/DIN standards.
DIMENSIONAL STANDARDS
Long Weld Neck Flanges are available in the following standards:​
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​1] ANSI / ASME B16.5 Long Weld Neck Flanges
1.1)ANSI / ASME Class 150 Long Weld Neck Flange
1.2)ANSI / ASME Class 300 Long Weld Neck Flange
1.3)ANSI / ASME Class 400 Long Weld Neck Flange
1.4)ANSI / ASME Class 600 Long Weld Neck Flange
1.5)ANSI / ASME Class 900 Long Weld Neck Flange
1.6)ANSI / ASME Class 1500 Long Weld Neck Flange
1.7)ANSI / ASME Class 2500 Long Weld Neck Flange
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AVAILABLE MATERIALS
Long Weld Neck Flanges are available in the following materials:​​
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Stainless Steel Grades:
304: ASTM A182 F 304 / SS304 / 1.4301 / S30400 Long Weld Neck / LWNRF / LWNFF Flanges ​
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316: ASTM A182 F 316 / SS316 / 1.4401 / S31600 Long Weld Neck / LWNRF / LWNFF Flanges
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309: ASTM A182 F 309 / SS309 / 1.4828 / S30900 Long Weld Neck / LWNRF / LWNFF Flanges
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310: ASTM A182 F 310 / SS310 / 1.4845 / S31000 Long Weld Neck / LWNRF / LWNFF Flanges
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317L: ASTM A182 F 317L / SS317L / 1.4438 / S31700 Long Weld Neck / LWNRF / LWNFF Flanges
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321: ASTM A182 F 321 / SS321 / 1.4878 / S32100 Long Weld Neck / LWNRF / LWNFF Flanges
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347: ASTM A182 F 347 / SS347 / 1.4961 / S34700 Long Weld Neck / LWNRF / LWNFF Flanges
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904L: ASTM A182 F 904L / SS904L / 1.4539 / N08904 Long Weld Neck / LWNRF / LWNFF Flanges
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Duplex Steel Grades:
F 51: ASTM A182 F51 / SAF 2205 Duplex / 1.4462 / S31803 Long Weld Neck / LWNRF / LWNFF Flanges
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F 53: ASTM A182 F53 / SAF 2507 Super Duplex / 1.4410 / S32750 Long Weld Neck / LWNRF / LWNFF Flanges
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F 55: ASTM A182 F55 / SAF 2507 Super Duplex / 1.4410 / S32760 Long Weld Neck / LWNRF / LWNFF Flanges
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F 60: ASTM A182 F60 / SAF 2205 Duplex / 1.4462 / S32205 Long Weld Neck / LWNRF / LWNFF Flanges
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Alloy Steel Grades:
F5: ASTM A182 F5 / Chrome Moly F5 / 1.7362 / K41545 Long Weld Neck / LWNRF / LWNFF Flanges
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F9: ASTM A182 F9 / Chrome Moly F9 / 1.7386 / K90941 Long Weld Neck / LWNRF / LWNFF Flanges
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F11: ASTM A182 F11 / Chrome Moly F11 / 1.7335 / K11597 Long Weld Neck / LWNRF / LWNFF Flanges
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F21: ASTM A182 F21 / Chrome Moly F21 / 10CRM0910 / K41545 Long Weld Neck / LWNRF / LWNFF Flanges
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F22: ASTM A182 F22 Long Weld Neck / LWNRF / LWNFF Flanges
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F91: ASTM A182 F91 / Chrome Moly F91 / 1.4903 / K21590 Long Weld Neck / LWNRF / LWNFF Flanges
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Carbon Steel Grades:
A105: ASTM A105 / Carbon Steel A105 / K03504 Long Weld Neck / LWNRF / LWNFF Flanges
LTCS Grades:
A350 LF2: A350 LF2 Long Weld Neck / LWNRF / LWNFF Flanges
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Copper Nickel Grades:
C70600(90/10): C70600 / Cu-Ni 90/10 / 2.0872 Long Weld Neck / LWNRF / LWNFF Flanges
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C71500(70/30): C71500 / Cu-Ni 70/30 / 2.0882 Long Weld Neck / LWNRF / LWNFF Flanges
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C71640: C71640 Long Weld Neck / LWNRF / LWNFF Flanges
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Nickel Grades:
UNS N02200: UNS N02200 / Nickel 200 / 2.4066 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N02201: UNS N02201 / Nickel 201 / 2.4068 Long Weld Neck / LWNRF / LWNFF Flanges
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Monel Grades:
UNS N04400: UNS N04400 / Monel 400 / 2.4360 / B564 N04400 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N05500: UNS N05500 / Monel K500 / 2.4375 / B564 N05500 Long Weld Neck / LWNRF / LWNFF Flanges
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Alloy 20: Alloy 20 / 2.4660 / B462 Alloy 20 Long Weld Neck / LWNRF / LWNFF Flanges
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Inconel Grades:
UNS N06600: UNS N06600 / 2.4816 / Inconel 600 / B564 N06600 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N06601: UNS N06601 / 2.4851 / Inconel 601 / B564 N06601 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N06625: UNS N06625 / 2.4856 / Inconel 625 / B564 N06625 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N08800: UNS N08800 / 1.4876 / Inconel 800 / B564 N08800 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N08810: UNS N08810 / 1.4876 / Inconel 810 / B564 N08810 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N08825: UNS N08825 / 2.4858 / Incoloy 825 / B564 N08825 Long Weld Neck / LWNRF / LWNFF Flanges
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Hastelloy Grades:
UNS N10276: UNS N10276 / 2.4819 / Hastelloy C276 / B564 N10276 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N06022: UNS N06022 / 2.4602 / Hastelloy C22 / B564 N06022 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N10665: UNS N10665 Long Weld Neck / LWNRF / LWNFF Flanges
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UNS N06455: UNS N06455 Long Weld Neck / LWNRF / LWNFF Flanges
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Titanium Grades:
Gr 1: Titanium Gr1 Long Weld Neck / LWNRF / LWNFF Flanges
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Gr 2: Titanium Gr2 / 3.7035 / R50400 / B381 Grade 2 Long Weld Neck / LWNRF / LWNFF Flanges
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Gr 3: Titanium Gr3 Long Weld Neck / LWNRF / LWNFF Flanges
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Gr 5: Titanium Gr5 / 3.7165 / R56400 / B381 Grade 5 Long Weld Neck / LWNRF / LWNFF Flanges
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Maraging 300 UNS K93120 Long Weld Neck / LWNRF / LWNFF Flanges
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Super Alloy 35N UNS R30035 2.4999 F688 R30035 Long Weld Neck / LWNRF / LWNFF Flanges
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Zirconium 702 Long Weld Neck / LWNRF / LWNFF Flanges
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Stellite Grade 6 Long Weld Neck / LWNRF / LWNFF Flanges
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Stellite Grade 19 Long Weld Neck / LWNRF / LWNFF Flanges
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Stellite Grade 25 Long Weld Neck / LWNRF / LWNFF Flanges
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Alloy A286 Long Weld Neck / LWNRF / LWNFF Flanges
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Alloy 28 Long Weld Neck / LWNRF / LWNFF Flanges
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Alloy 230 Long Weld Neck / LWNRF / LWNFF Flanges
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Invar 36 Long Weld Neck / LWNRF / LWNFF Flanges
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Invar 42 Long Weld Neck / LWNRF / LWNFF Flanges
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Tantalum R05200 Long Weld Neck / LWNRF / LWNFF Flanges
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Cobalt L-605 2.4964 Haynes 25 Long Weld Neck / LWNRF / LWNFF Flanges
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SS446 Long Weld Neck / LWNRF / LWNFF Flanges
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XM 19 Nitrinic 50 S20910 Long Weld Neck / LWNRF / LWNFF Flanges
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254 SMO Long Weld Neck / LWNRF / LWNFF Flanges
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Nimonic 75 N06075 2.4951 2.4630 Long Weld Neck / LWNRF / LWNFF Flanges
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RA 602CA 2.4633 N06025 Long Weld Neck / LWNRF / LWNFF Flanges
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Waspaloy N07001 AMS 5708 AMS 5544 Long Weld Neck / LWNRF / LWNFF Flanges
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Inconel X-750 2.4669 Long Weld Neck / LWNRF / LWNFF Flanges
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Ferralium 255 UNS S32550 Long Weld Neck / LWNRF / LWNFF Flanges
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Haynes 188 UNS R330188 Udimet 188 Cobalt Alloy 188 Long Weld Neck / LWNRF / LWNFF Flanges
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310 MoLN UNS S31050 1.4466 Long Weld Neck / LWNRF / LWNFF Flanges
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SS415 1.4313 S41500 Long Weld Neck / LWNRF / LWNFF Flanges
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Sanicro 28 Long Weld Neck / LWNRF / LWNFF Flanges
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Hastelloy G3 UNS N06985 Long Weld Neck / LWNRF / LWNFF Flanges
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AA2024 Long Weld Neck / LWNRF / LWNFF Flanges
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2014 Alloy UNS A92014 Long Weld Neck / LWNRF / LWNFF Flanges
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Alloy 5083 Long Weld Neck / LWNRF / LWNFF Flanges
FASTEST DELIVERY IN THE WORLD
Tesco Steel & Engineering is focused on creating the fastest seamless experience to buy premium quality long weld neck flanges. We export our products to more than 142 countries.
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We have most standard sizes in ready stock and ship them through air or sea depending on the size and weight of the products. In case of sizes which are not in stock, we can manufacture them in 3-4 days. For the most urgent orders, we are specialized in delivering the product to you within 7 days.
Countries we export to: Long Weld Neck Flanges Manufacturers / Suppliers / Stockist in Kuwait, UAE, Germany, Saudi Arabia, West Africa, Iraq, Congo, Mexico, Bahrain, Canada, Philippines, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Oman, Nigeria, Lithuania, Gabon, Russia, Vietnam, Angola, Bolivia, Indonesia, UK, Yemen, Italy, United States, Venezuela, Spain, Iran, Estonia, Kazakhstan, Algeria, Jordan, Ecuador, Portugal, Colombia, Libya, Chile, Peru, Iran, South Africa, Bangkok, Namibia, Jeddah, Afghanistan, Israel, Zambia, Macau, Morocco, Denmark, Taiwan, Norway, Belarus, North Macedonia, Lebanon, Sri Lanka, Bhutan, Bulgaria, Albania, Ukraine, Belgium, Finland, Slovokia, Tibet, Romania, France, Brazil, Trinidad & Tobago, Fiji, Tunisia, Gambia, Mexico, Hungary, Zimbabwe, Mongolia, Ghana, Egypt, Kazakhstan, Czech Republic, Azerbaijan, Poland, Greece, Costa Rica, Kosovo, New Zealand, Croatia, Puerto Rico, Tanzania, Somalia.
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Major Exporting Areas: Long Weld Neck Flanges Manufacturers / Suppliers / Stockist in Moscow, Port-Of-Spain, Seoul, Montreal, Dubai, Kuala Lumpur, Aberdeen, Tehran, Bogota, Petaling Jaya, Melbourne, Abu Dhabi, Courbevoie, Edmonton, Ho Chi Minh City, Bangkok, Toronto, Muscat, Milan, Busan, Mexico City, Perth, La Victoria, Santiago, Rio de Janeiro, London, Karachi, Los Angeles, Manama, Geoje-si, Atyrau, Sydney, Riyadh, New York, Jeddah, Houston, Granada, Jakarta, Brisbane, Algiers, Kuwait City, Dubai, Hanoi, Doha, Al Jubail, Chiyoda, Cairo, Gimhae-si, Caracas, Lagos, Al Khobar, Madrid, Singapore, Calgary, Colombo, Ulsan, Istanbul, Ahvaz, Dammam, Dallas, Texas, Ankara, Sharjah, Vung Tau, Angola, Benin, Burundi, Botswana, Burkina Faso, Cameroon, Douala, Central African Republic, Republic of Congo, Democratic Republic of Congo, Côte d'Ivoire, Djibouti, Eritrea, Ethiopia, Equatorial Guinea, Gabon, Guinea, Kenya, Liberia,Malawi, Mali, Mauritania, Mauritius, Casablanca-Settat, Tanger-Tetouan-Al Hoceima, Fès-Meknès, Marrakesh-Safi, Oriental, Béni Mellal-Khénifra, Souss-Massa, Laâyoune-Sakia El Hamra, Rabat-Salé-Kénitra region, Mozambique, Temara, Niger, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Bangkok, Bangchan, Khlong Sam Wa, Gemopolis, Lard Krabang, Pathumthani, Bangkadi, Navanakorn, Samut Prakarn, Bangplee, Bangpoo, Saraburi, Nongkhae, SIL I/Land, Chachoengsao, 304 I/P, Gateway City, Wellgrow, Rayong, Amata City, Eastern Seaboard, Hemaraj Eastern Seaboard, Rojana, Soam Eastern, Chonburi, Amata Nakorn, Hemaraj Chonburi, Pinthong, Ayutthaya, Bangpa-in, Saha Ratna Nakorn, Nakornratchasima, Kabinburi, Prachinburi, HCMC, Tan Thuan Export Processing Zone, Bien Hoa, Dong Nai Province, Amata City Bien Hoa Industrial Park, Long Binh Techno Park, Binh Duong Province, Vietnam Singapore Industrial Park, My Phuoc Industrial Park, Ho Nai Industrial Zone, Bau Xeo Industrial Park, Long Thanh Industrial Zone, Long Duc Industrial Park, Duc Hao I, Tan Huong, Long Jiang, Tra Noc I/II, Hung Phu I, Hiep Phuoc Industrial Park, Phuoc Dong Industrial Park, Dinh Vu – Cat Hai Economic Zone.