Alloy 20 weld neck flanges are engineered for leak-proof connections and smooth transitions from flange to pipe, ensuring reduced stress concentrations in high-pressure and high-temperature environments. At Tesco Steel & Engineering, we manufacture Alloy 20 weld neck flanges with precise machining and excellent surface finish, making them ideal for critical piping systems across pharmaceutical, chemical, and petrochemical industries. Our flanges are available in equivalent grades such as UNS N08020, 2.4660, WP20CB, AFNOR Z2NCUD31-20AZ, and EN NiCr20CuMo, aligning with global standards and supporting your international project requirements.
Tesco Steel & Engineering ensures that each Alloy 20 weld neck flange undergoes strict quality inspections, maintaining consistent reliability, corrosion resistance, and high mechanical strength in challenging service environments. The chemical composition of Alloy 20 consists of 32-38% nickel, 19-21% chromium, 3-4% copper, and 2-3% molybdenum, along with iron, niobium, and manganese, providing exceptional resistance against sulfuric acid, chloride pitting, and general corrosion. These properties make Alloy 20 weld neck flanges an excellent choice for acid processing, offshore applications, and high-purity systems requiring durable, corrosion-resistant connections.
Tesco Steel & Engineering proudly exports Alloy 20 weld neck flanges to the USA, Germany, the UK, Saudi Arabia, the UAE, and Qatar, serving a wide client base across Western and Middle Eastern markets. As a trusted manufacturer, we prioritize competitive pricing, rigorous quality control, and timely delivery, ensuring your projects receive high-quality flanges that enhance operational efficiency and system safety. By partnering with Tesco Steel & Engineering, you secure corrosion-resistant, long-lasting Alloy 20 weld neck flanges that support the reliable and seamless functioning of your industrial and chemical processing pipelines.
| C | Mn | Si | P | S | Cu | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|---|
| 0.070 max | 2.00 max | 1.00 max | 0.045 max | 0.035 max | 3.00-4.00 | 19.00-21.00 | 2.00-3.00 | 32.00-38.00 |
| Tensile Strength, MPa | Yield Strength, Min, Mpa | Elongation % min. |
|---|---|---|
| 551 | 241 | 30 |
| Standard | Werkstoff Nr. | UNS | AFNOR | EN |
|---|---|---|---|---|
| Alloy 20 | 2.4660 | N08020 | Z2NCUD31-20AZ | NiCr20CuMo |
| Alloy 20 Weld Neck Flanges are available in the following specifications: | |
|---|---|
| Size | 1/2"NB to 56"NB |
| Class | 150#, 300#, 3000#, 6000#, 9000# |
| Sch (Schedule) | XS, XXS, STD & Schedule 20, 40, 80, 160 |
| Pressure Ratings | PN 1 - PN 400 |
| Other Services | Hot Dip Galvanized (GI) Alloy 20 Weld Neck Flanges Sand Blasting on Alloy 20 Weld Neck Flanges Shot Peening on Alloy 20 Weld Neck Flanges Epoxy Coating on Alloy 20 Weld Neck Flanges FBE Coating on Alloy 20 Weld Neck Flanges |
Countries we export to: Alloy 20 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.
Major Exporting Areas: Alloy 20 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, Alloy 20 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.