| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI, GB, JIS, EN |
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| Stainless Steel S32205/S31803 Tube Standards | SA 789 alloy 2205, astm a790 duplex 2205, a790 gr 2205ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156 |
| S32205/S31803 SEAMLESS Stainless Steel Aerospace Tubing | AMS 5557, AMS 5897 (Canceled & non-current specs include MIL-T-8808, MIL-T-8973) |
| S32205/S31803 WELDED & DRAWN Stainless Steel Aerospace Tubing | AMS 5556, AMS 5575 (Canceled & non-current specs include MIL-T-6737, MIL-T-8606, MIL-T-8808) |
| Stainless Steel S32205/S31803 Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| Stainless Steel S32205/S31803 Welded Tube Size | 6.35 mm OD To 152 mm OD |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Stainless Steel S32205/S31803 tubing wall thickness | 0.020″ -0.220″, (special wall thicknesses available) |
| SS S32205/S31803 tube Length | Single Random, Double Random, Standard & Cut length |
| S32205/S31803 Stainless Steel Tube Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Stainless Steel S32205/S31803 tube Form | Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or 'U' bent Tubes, Hollow, LSAW Tubes Etc. |
| Stainless Steel S32205/S31803 Tube Type | Seamless, ERW, EFW, Welded, Fabricated |
| Electropolished | (EP) Electropolished for Ultra High Purity Systems |
| Non-Electropolished | (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems |
| I.D. Surface Finish Options | 5, 7 & 10 µin. Ra |
| JIS | 8A to 250A |
| Tolerances | In accordance with: ASTM: A269 & A632, JIS: G 3459 |
| S32205/S31803 stainless steel tubing End | Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
| Marking | All S32205/S31803 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| S32205/S31803 stainless steel tubing Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | Stainless Steel S32205/S31803 Capillary Tube & Other Odd Size |
| Stainless Steel S32205/S31803 Heat Exchanger & Condenser Tubes | |
| Stainless Steel S32205/S31803 Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition | |
| Stainless Steel S32205/S31803 hydraulic tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition | |
| Marking & Traceability | Each Stainless Steel S32205/S31803 Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| S32205/S31803 stainless steel tubing Test Certificate | Manufacturer Test Certificate according to EN 10204 3.1 B |
| Laboratory Test Certificate from Govt. Approved Lab. | |
| Under Third Party Inspection | |
| S32205/S31803 stainless steel tubing Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
CORROSION RESISTANCE Alloy 2205 exhibits superior resistance to chloride-induced pitting and stress corrosion cracking, ensuring longevity in corrosive environments.
ELEVATED TEMPERATURE RESISTANCE According to the ASME Boiler and Pressure Vessel Code, the upper-temperature limit for Alloy 2205 is 600°F (315°C). Prolonged exposure to temperatures above this can cause embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels in the annealed condition. It can also be provided in the cold-worked condition with a yield strength exceeding 160 ksi, maintaining good toughness at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 is amenable to cold forming, though its high work-hardening rate may necessitate intermediate anneals. Annealing is also recommended after hot or cold forming to achieve optimal stress corrosion resistance.
Our forming capabilities are unmatched, featuring advanced extrusion and cold working assets crucial for tube and pipe manufacturing. We proudly boast one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a vertically integrated powerhouse, Jiangsu Daxun Alloy Co., Ltd. offers a holistic one-stop-shop solution. Be it overseeing an entire project or executing specific machining tasks, our extensive capabilities span straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a suite of specialized services.
Equipped with vertical and horizontal presses ranging from an astounding 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. boasts the industry's most versatile pipe extrusion capabilities. This empowers us to produce the longest lengths and largest diameter pipes on the market.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a cutting-edge duplex stainless steel with enhanced nitrogen content for superior corrosion resistance, especially in welding applications. In its annealed condition, Alloy 2205 is more than twice as strong as conventional austenitic stainless steels and boasts significantly higher corrosion resistance than Alloy 316 under many conditions. Frequently chosen due to its superior properties, Alloy 2205 is also known by its designations UNS N31803 and 22-Chromium. This popular duplex ferritic stainless steel is composed of 22% chromium, 3% molybdenum, and 5-6% nickel alloy. Renowned for its impressive fatigue strength, Duplex 2205 offers exceptional resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in extreme environments.
At Daxun Alloys, we specialize in producing a diverse range of stainless steel Alloy 2205 tubing, including seamless, welded, precision, and capillary tubing. Our Alloy 2205 adheres to stringent industrial standards set by organizations such as ASTM, ASME, ISO, UNS, and EN, ensuring top-notch quality and reliability.
Dah Hsun Alloys stands as a trusted supplier of Duplex 2205 Stainless Steel Pipes. As a distinguished stockist, we offer a wide variety of Duplex 2205 Round Pipes, Duplex 2205 Square Pipes, Duplex SS 2205 Polished Pipes, Duplex 2205 Electro Polished Pipes, Duplex SS 2205 Square and Rectangular Pipes, and Duplex 2205 Cold Drawn Stainless Steel Pipes, all available at our facility in China. Established in 1999, we have been manufacturing and exporting ASTM A789 UNS S31803 Seamless and Welded Pipes, holding an ISO 9001 certification. With over 25,000 tonnes of inventory, we are one of the largest stockists of Duplex 2205 Stainless Steel Pipes in various shapes, sizes, and coatings in China. Initially founded as a trader, we evolved into a leading stockholder and distributor, recognized globally. Our extensive inventory includes specifications such as SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS across different pipe types, including LSAW Pipe. We offer the most competitive pricing for 2205 Duplex Stainless Steel Pipes in China.
Chemical Composition of 2205/S32205/S31803 Stainless Steel Pipe
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 2205 | 0.03 | 2 | 1 | 0.03 | 0.02 | min: 21.0 | min: 2.5 | min: 4.5 | min: 0.08 |
| (S31803) | max | max | max | max | max | max: 23.0 | max: 3.5 | max: 6.5 | max: 0.20 |
| 2205 | 0.03 | 2 | 1 | 0.03 | 0.02 | min: 22.0 | min: 3.0 | min: 4.5 | min: 0.14 |
| (S32205) | max | max | max | max | max | max: 23.0 | max: 3.5 | max: 6.5 | max: 0.20 |
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness | |
| (MPa) min | 0.2% Proof | (% in 50mm) min | |||
| (MPa) min | Rockwell C (HR C) | Brinell (HB) | |||
| UNS S31803 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
| UNS S32205 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
| Grade 2205 | Density | Elastic | Mean Co-eff of Thermal | Thermal | Specific | Electrical | |||
| (kg/m3) | Modulus(GPa) | Expansion (μm/m/°C) | Conductivity (W/m.K) | Heat | Resistivity | ||||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | 0-100°C( J/kg.K) | (nΩ.m) | |||
| UNS S32205 / UNS S31803 | 782 | 190 | 13.7 | 14.2 | - | 19 | - | 418 | 850 |
Duplex 2205 stainless steel pipe is a superior duplex ferritic-austenitic stainless steel, enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned as the most widely utilized duplex stainless steel grade, its yield strength is double that of standard austenitic grades. This material exhibits unparalleled fatigue strength and boasts exceptional resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion under the most demanding conditions.
Most manufacturers recommend a maximum hot forming temperature for Duplex 2205 between 2010 and 2100°F (1100 and 1150°C). If the workpiece is not compact, cooler edges may risk cracking due to temperature disparities.
Duplex 2205 Stainless Steel Tube showcases excellent formability across various manufacturing processes. However, the high strength of Duplex 2205 can pose challenges. Even with powerful equipment, the increased springback due to this grade's robust strength must be considered.
Duplex 2205 is somewhat more challenging to machine compared to 300 series austenitic stainless steels. It requires higher cutting forces, leading to quicker tool wear. Here are some essential machining guidelines: A) Utilize a powerful, rigid machine with robust tool and workpiece mounts; B) Keep tool extensions minimal to reduce vibration; C) Ensure the tool nose radius is as short as possible to maintain a sharp edge while providing sufficient strength; D) Plan the machining sequence so the depth of cut consistently remains below the work-hardened layer from previous operations.
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