Duplex stainless steel tubes alloy 2205 seamless tube
The properties of duplex pipes include durability and high strength as well as their resistance to stress related corrosion cracking.
ASTM A790 Gr UNS S32205 Welded Pipe and Tube manufacturers in China
Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel. The picture shows the yellow austenitic phase as “islands” surrounded by the blue ferritic phase. When duplex stainless steel is melted it solidifies from the liquid phase to a completely ferritic structure. As the material cools to room temperature, about half of the ferritic grains transform to austenitic grains (“islands”). The result is a microstructure of roughly 50% austenite and 50% ferrite.
ASTM A790 UNS S32205 is a duplex steel type that is a mixture of different elements. There are chromium, molybdenum and nitrogen in the composition of SA 790 UNS S32205 steel material. The composition calls for corrosion resistance and strength in the mid-range among the other duplex steel types. Therefore the UNS S32205 pipe has a medium range of mechanical properties. There are three different categories of duplex steel material. They are the duplex, super duplex and the lean duplex. The categories differ based on the chromium addition and the PREN numbers. The PREN number is an indication of pitting corrosion resistance. The Duplex S32205 Seamless Pipe belongs to the ordinary duplex steel. UNS S32205 pipe is cost effective compared to the other two types and is therefore the most used duplex steel type.
The ASTM A790 UNS S32205 Welded Pipe gets additional strength through the making procedure. The welded ones are hot rolled while the seamless pipes are cold drawn. They can both be strengthened further but to a limited extent with cold working. The SA 790 UNS S32205 Tube is used in application that performs under mildly high temperatures, pressures and mildly corrosive environments. The applications of Duplex S32205 UNS Seamless Pipe are seen in water purification and waste water management systems along with high precision. These UNS S32205 pipes are easy to install. In cases where special pipes are needed, special pipes such as the SA789 S32205 UNS Bush Hex Pipe are used. The electric resistant welded UNS S32205 Stainless Steel ERW Pipe is easy to weld upon. For this reason, the ERW pipe is used with applications that require much welding at installation. The Duplex ASTM A790 UNS S32205 Pipe usage is not limited to the industrial applications; they could also be seen in low cost, domestic applications as well.
ASTM A790 UNS S32205 Specifications
Specifications | ASTM A789 S31803/ ASTM A790 S31803 / cd4mcun s31803 |
Standard | AISI, DIN, EN, GB, JIS, ASTM, ASME UNS S32205 Pipe |
UNS S32205 Seamless Pipes Outer Diameter | 6.00 mm OD up to 250 mm OD, Sizes up to 12” NB |
UNS S32205 Welded Pipes size | 5.0 – 1219.2 mm |
UNS S32205 EFW Pipe size | 5.0 mm – 1219.2 mm |
UNS S32205 Seamless pipes Size | 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN |
UNS S32205 Welded pipes Size | 6.35 mm OD To 152 mm OD |
Thickness | 0.3mm – 50 mm |
Swg and Bwg | 10, 12, 14, 16, 18, 20 Swg |
ASTM A789 UNS S32205 pipe wall thickness | 0.020″ –0.220″ (special wall thicknesses available) |
UNS S32205 Pipes Schedule | Schedule 5, 10, 40, 80, 80S, 160, XXS, XS |
ASTM A790 UNS S32205 Pipe Finish | Annealed and Pickled, Polished, Bright and Annealed, BA, MF, NO.1, NO.4, 2B, HL, 8K, Mirror finish,etc |
Form | Rectangular, Square, Round, Hollow, Straight Pipes, Hydraulic, Coiled, U Shape, Pan Cake Coils etc. |
Length | Single Random, Double Random, Standard & Cut length |
End | Plain End, Beveled End, Treaded. |
Type | UNS S32205 Seamless, ERW, EFW, Welded, Fabricated, CDW, DOM and CEW Pipes |
Marking | All ASTM A790 UNS S32205 Pipe are marked as follows: Supplier / Manufacturer’s Name, Grade, Standard, OD, Thickness, Length, Heat No. |
Value Added Service provided by suppliers | Draw & Expansion as per required Size and Length, Polish (Electro and Commercial) Annealed and Pickled Bending, Machining Etc. |
Material Test Certificates (MTC) | Material Test Certificates (MTC) as per EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2, 100% Radiography Test Report, Raw Materials Certificate, Third Party Inspection Report, Fumigation Certificates, Heat Treatment Charts, ASTM A790 UNS S32205 Pipe HS Code Commercial Invoice, Form A for Generalized System of Preferences (GSP), Manufacturer Test Certificate , Laboratory Test Certificate from Govt. Approved Lab. |
We can also cut, thread, and groove UNS S32205 Pipes to meet your specifications. |