Duplex Steel DIN 1.4462 Elbow, Duplex Steel UNS S31803 Reducers, Pipe Caps Manufacturer & Exporter
ANSI/ASME B16.9, B16.28, MSS-SP-43. Duplex Steel UNS S31803, S32205, S32550, S32750, S32760 Buttweld Pipe Fittings.
Valour Alloys Inc. we carry a full inventory and Supply UNS S31803 Buttweld Pipe Fittings products in a variety of sizes widely used for marine applications due to their excellent resistance to seawater corrosion, low macrofouling rates, and good fabricability.
The UNS S31803 fittings consist of duplex stainless steel, with equal portions of austenite and ferrite microstructure. The UNS S31803 Pipe Fittings has two phases and comprises ferritic, austenitic, 22 % chromium, 3 % molybdenum, 5 to 6 % nickel alloyed stainless steel.
UNS S31803 is a grade of stainless steel that is known for its excellent corrosion resistance and mechanical properties. Pipe fittings made from UNS S31803 stainless steel are widely used in various industrial applications, especially in environments where resistance to corrosion and high pressure is essential. These fittings are commonly used in the oil and gas, petrochemical, chemical processing, and maritime industries, among others.

UNS S31803 Pipe Fittings Manufacturer

UNS S31803 Pipe Fittings Exporter
Duplex Steel S31803 / S32205 Buttweld Pipe Fittings, 2205 Duplex Pipe Fittings, UNS S31803 / S32205 Fittings Suppliers, Duplex UNS S32205 Buttweld Fitting, Duplex Steel Elbow Dealer in India, Stockist of Duplex Stainless Buttweld Pipe Fittings, Global Supplier of 2205 Duplex Butt Weld Pipe Fittings, Ansi B16.9 Duplex Steel Reducer.
Material Composition: UNS S31803 is a duplex stainless steel, which means it consists of a combination of both austenitic and ferritic microstructures. The key elements in its composition include chromium, nickel, molybdenum, and nitrogen. This composition provides the alloy with excellent corrosion resistance, especially in aggressive and corrosive environments.
Corrosion Resistance: UNS S31803 exhibits exceptional resistance to various types of corrosion, including general corrosion, pitting, crevice corrosion, and stress corrosion cracking. This makes it a preferred material choice for pipe fittings that are exposed to harsh chemical and saline environments.
High Strength and Toughness: This grade of stainless steel offers a combination of high strength and toughness, making it suitable for applications that require both load-bearing capacity and durability. It can withstand elevated temperatures and pressure, making it a reliable choice for pipe fittings in critical industrial processes.
Weldability: UNS S31803 is known for its good weldability, which is essential for the fabrication of complex pipe fittings. Welded joints maintain the alloy's corrosion resistance and mechanical properties when proper welding procedures are followed.
Availability and Applications: UNS S31803 pipe fittings are available in various forms, including elbows, tees, reducers, flanges, and more. They are used in a wide range of applications, such as pipelines, heat exchangers, pressure vessels, and other equipment that require resistance to corrosion, high pressure, and temperature fluctuations.
Compliance with Standards: Manufacturers of UNS S31803 pipe fittings adhere to industry standards and specifications to ensure the quality and performance of the products. Common standards include ASTM A815 for wrought fittings and ASTM A182 for forged fittings.
UNS S31803 pipe fittings are a popular choice in industries where corrosion resistance, strength, and toughness are crucial. Their duplex stainless steel composition and excellent properties make them well-suited for demanding applications, ensuring the integrity and reliability of critical piping systems.
UNS S31803 Pipe Fittings Range
Butt Weld Fitting Specification | ASTM A403/ ASTM SA403, ASTM A815 / ASME SA815, ASTM A420 / ASME SA420, ASTM A234 / ASME SA234, ASTM A860 / ASME SA860, ASTM B366 / ASME SB366, DIN 2605 Part 1 / DIN 2605 Part 2, EN10253-2 / EN10253-4 TC1 and TC2 |
Butt Weld Fittings Manufacturing Process | Hot / Cold / Fabricate / Seamless / Welded / Induction |
Butt Weld Fittings Other Grades | Stainless Steel - 304, 304L, 304H, 310s, 316, 316L, 317L, 321, 347, 904L, 410, 446 etc. Carbon Steel - WPB, WPC, WPL6, WPHY42, WPHY46, WPHY52, WPHY56, WPHY60, WPHY65 etc. Alloy Steel - WP5, WP9, WP11, WP22, WP91, 4140, Class 1, 2, 3 etc. Duplex and Super Duplex - UNS N031803, UNS N032750, UNS N032760 etc. Inconel - 600, 601, 625, 718, UNS N06600, UNS N06601, UNS N06625, UNS N07718 etc. Incoloy - 800, 800H, 800HT, 825, UNS N08800, UNS N08810, UNS N08811, UNS N08825 etc. Monel - 400, UNS N04400 etc. Hastelloy - C276, C22, UNS N010276, UNS N06022 etc. Titanium - Grade 2, Grade 3, UNS R50400, UNS R56200 etc. Copper Nickel - 90/10, 70/30, UNS C71500, UNS C70600 etc. Other - Alloy 20, SMO 254, UNS N08020, UNS N031254 etc. EN / DIN P235GHTC1/2 (St 35.8 I/ III), P265GH, S355J2H 16Mo3 (15Mo3), 10CrMo9-10 (10CrMo910), 13CrMo4-5 (13CrMo44) X11CrMo5, X11CrMo9-1, X20CrMOV11-1, X10CrMoVNb9-1, X10CrWMoVNb9-2, 7CrMoVTiB10-10 P215NL (TTST35N/V), 12Ni14 (10Ni14) P355N (StE355), P355NH (WStE355), P355NL1 (TStE355), P355NL2, L290NB (STE 290.7), L360NB (STE 360.7) 1.4301, 1.4306, 1.4362(Lean Duplex), 1.4401, 1.4404, 1.4435, 1.4436, 1.4439, 1.4462(Duplex), 1.4466(Super Duplex), 1.4501, 1.4539, 1.4541, 1.4550, 1.4571 1.4841, 1.4878,, 1.4876, 1.4952, 1.4835, 1.4877, 1.4910 |
Butt Weld Fittings Outer Diameter | 1/2" NB TO 48" NB |
Butt Weld Fittings Wall Thickness or Schedule | Sch 10s to Sch XXS or As Per Custom Requirement |
Butt Weld Fittings Types | 45 Degree Elbow, 90 Degree Elbow, 180 Degree Elbow, LR Elbow (Long Radius Elbow), SR Elbow (Short Radius Elbow), Equal Tee, Reducing / Unequal Tee, Concentric Reducer, Eccentric Reducer, End Cap, Long Stub End, Short Stub End, Lap Joint Stub End, Equal Cross, Reducing / Unequal Cross, Seamless Fittings, Welded Fittings, 1.5D, 3D, 5D etc. |
Butt Weld Fittings Dimension | ASME 16.9 - Factory-Made Wrought Buttwelding Fittings ASME B16.28 - Wrought Steel Buttwelding Short Radius Elbows and Returns MSS SP-43 - Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
Butt Weld Fittings Other Testing | Tensile, Hardness Test, Chemical Analysis – Spectro Analysis, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test, NACE MR0175, Ultrasound Test, ASTM A262 Practice E, Charpy Impact Test, Grain Size, Dye Penetrant Test etc. |
Butt Weld Fittings Packaging | Carrate / Wooden Pallet / Wooden Box |
Butt Weld Fittings Shipment & Transportation | By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
Butt Weld Fittings Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC |
UNS S31803 Pipe Fittings
Seamless/ Welded 100% Radiography Tested
Products | Size | |
ASTM A815 Duplex Steel Elbow – Long Radius | ASTM A815 Duplex Steel Stub Ends | Sizes 1/2″ – 48″ |
ASTM A815 Duplex Steel Elbow – Short Radius | ASTM A815 Duplex Steel Cross | |
ASTM A815 Duplex Steel Reducing Elbow | ASTM A815 Duplex Steel Reducing Cross | |
ASTM A815 Duplex Steel 45° Elbow | ASTM A815 Duplex Steel Tees | |
ASTM A815 Duplex Steel Fabricated Tee | ASTM A815 Duplex Steel End Cap | |
ASTM A815 Duplex Steel Reducer | ASTM A815 Duplex Steel Coupling | |
ASTM A815 Duplex Steel Concentric Reducer | ASTM A815 Duplex Steel Pipe Nipple | |
ASTM A815 Duplex Steel Eccentric Reducer | ASTM A815 Duplex Steel 5D Elbow | |
ASTM A815 Duplex Steel 3D Elbow | ASTM A815 Duplex Steel Welded Pipe Fittings |
Types Of Grade UNS S31803 Pipe Fittings
Chemical Composition of UNS S31803 Pipe Fittings
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 - 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Mechanical Properties of UNS S31803 Pipe Fittings
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Equivalent Grade of UNS S31803 Pipe Fittings
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Other Available Products Of UNS S31803 Pipe Fittings

Duplex Steel Buttweld Fittings Manufacturer

Duplex Steel Buttweld Fittings Exporter
Other Available Products Of UNS S31803 Pipe Fittings
Duplex Steel Pipe Fittings | Duplex Steel 2205 Buttweld Pipe Fittings |
Duplex Steel S31803 Seamless Pipe Fittings | Duplex Steel S32205 Welded Pipe Fittings |
Duplex Steel UNS S31803 Pipe Elbow | Duplex Steel Buttweld Tee |
2205 Duplex Buttweld Reducer Suppliers | ANSI Duplex Steel Pipe Fittings |
Duplex Stainless Stubends Dealer | Ferritic / Austenitic Duplex Pipe Fittings Exporter |
Duplex Butt weld Fittings Stockholder | 2205 Duplex Steel Pipe End Cap Distributors |
Duplex Steel UNS S32205 45deg.Elbow | Duplex Steel 90deg. LR Elbow Manufacturer |
Duplex Steel DIN 1.4462 Pipe Tee | Duplex Steel 2205 Cross |
Duplex Steel 2205 Buttweld Reducing Nipple | Duplex Steel Short Radius Elbow |
ANSI B16.9 Duplex Buttweld Fitting | 2205 Duplex End Pipe Cap Stockist |
ASTM A815 Duplex Steel Welded Pipe Fittings | ASME SA815 Duplex Pipe Fittings |
UNS S31803 Pipe Fittings Application
- Oil and Gas equipments
- Offshore Technology
- Seawater Desalination Plants
- Chemical Industry
- Airport, Malls, Buildings
- Storage Tanks
- Medical Industry
- Civil Engineering
- Pressure vessels, Reactor tanks, and Heat exchangers
- Rotors, impellers and shafts
- Power Plants
- Petrochemical
- Shipbuilding Industry
- Mining Industry
- Food Equipments Industry
Test Certificates
We UNS S31803 Pipe Fittings with the following details Mill Test Certificate according to EN 10204 3.1, PMI Test, Test Report from NABL Approved Lab, 3.2 Certification by External Testing Authority third, ultrasonic test report, and X-ray report.
Quality Assurance
At UNS S31803 Pipe Fittings sall types of Such as UNS S31803 Pipe Fittings, UNS S32205 Pipe Fittings from raw material purchase to production and product shipping. They are visually inspected for compliance with ASTM, ASME, DIN, EN and JIS codes and standards. We can also designate certified official testing agencies upon customer request so that they can witness the product's material, size and quality compliance reports.
Marking & Packing
Our UNS S31803 Pipe Fittings is packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All UNS S31803 Pipe Fittings are marked with our grade, batch number, size and mark. We can also do custom branding on our products as per buyer's unique requirements
Supplying UNS S31803 Pipe Fittings to Countries -
We Export UNS S31803 Pipe Fittings to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East Etc.
Distributing UNS S31803 Pipe Fittings to Cities -
We Export UNS S31803 Pipe Fittings to Navi Mumbai, Indore, Baroda, Muscat, Secunderabad, Gimhae-si, Kanpur, Colombo, Kuala Lumpur, Bhopal, Pimpri-Chinchwad, Rajkot, Haryana, Hanoi, Ernakulam, Chandigarh, Surat, Los Angeles, Hong Kong, Ahmedabad, Perth, Petaling Jaya, Hyderabad, Mumbai, Algiers, Edmonton, Ludhiana, Ho Chi Minh City, Karachi, Bangkok, Dallas, Bengaluru, Jakarta, Granada, Seoul, Cairo, Geoje-si, Rio de Janeiro, Abu Dhabi, Port-of-Spain, Sydney, London, Courbevoie, Vung Tau, Sharjah, Jaipur, Lahore, Chennai, Istanbul, Lagos, Thane, Dubai, Coimbatore, La Victoria, Calgary, Jeddah, Busan, Mexico City, Al Khobar, Caracas, Singapore, Atyrau, Manama, Kolkata, Riyadh, Jamshedpur, Brisbane, Toronto, Noida, Ahvaz, Vadodara, Doha, Visakhapatnam, Ulsan, New Delhi, Gurgaon, Bogota, Howrah, Moscow, Nashik, Ranchi, Nagpur, Al Jubail, Houston, Milan, Chiyoda, Aberdeen, Melbourne, New York, Dammam, Montreal, Santiago, Kuwait City, Pune, Tehran, Thiruvananthapuram, Faridabad, Madrid, Ankara Etc.
Frequently Ask Questions (FAQ)
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