| 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 |
UNMATCHED CORROSION RESISTANCE Alloy 2205 offers extraordinary resistance to chloride-induced pitting and stress corrosion cracking.
SUPERIOR ELEVATED TEMPERATURE RESISTANCE According to the ASME Boiler and Pressure Vessel Code, the upper-temperature limit is 600°F (315°C). Prolonged exposure above this temperature leads to embrittlement.
EXCEPTIONAL MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of traditional austenitic stainless steels in the annealed state. It can also be supplied cold-worked, with yield strength surpassing 160 ksi. It retains good toughness down to -50°F (-10°C).
VERSATILE WORKABILITY Alloy 2205 is amenable to cold forming but has a high work-hardening rate, potentially necessitating intermediate anneals. Post-forming annealing is ideal for achieving optimal stress corrosion resistance.
Our forming capabilities are unparalleled, featuring state-of-the-art extrusion and cold working assets for tube and pipe manufacturing. We take pride in housing one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. brings you an all-encompassing one-stop-shop experience. From overseeing entire projects to executing precise machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and other specialized services.
With an impressive array of vertical and horizontal presses ranging from 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. boasts the industry's most comprehensive pipe extrusion capabilities. This empowers us to fabricate pipes with the longest lengths and largest diameters available.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a duplex stainless steel enriched with nitrogen to enhance its corrosion resistance, especially in welding applications. When in its annealed state, Alloy 2205 boasts over twice the strength of conventional austenitic stainless steels and offers superior resistance to corrosion compared to Alloy 316 under many conditions. As the most widely utilized duplex stainless steel, Alloy 2205-also known as UNS N31803 and 22-Chromium-contains 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This composition gives it excellent fatigue strength and remarkable resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion, even in the harshest environments.
At Daxun Alloys, we specialize in manufacturing stainless steel Alloy 2205 tubing in various forms and sizes, including seamless, welded, precision, and capillary tubing. Committed to quality, our Alloy 2205 products rigorously adhere to numerous industrial standards from prestigious organizations such as ASTM, ASME, ISO, UNS, and EN.
Dah Hsun Alloys stands as a trustworthy supplier of Duplex 2205 Stainless Steel Pipes. As a reputable stockist, we maintain a comprehensive inventory 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 at our facility in China. Established in 1999, we have been crafting Duplex 2205 Seamless Pipe and Duplex 2205 Welded Pipe for decades. As an ISO 9001 certified company, we export ASTM A789 UNS S31803 Seamless Pipe across China. With over 25,000 tonnes of Duplex 2205 Stainless Steel Pipe in myriad shapes, sizes, and coatings, we are one of China's largest stockists of ASTM A789 UNS S32205 pipes. From our inception as 2205 Duplex Stainless Steel Pipe Traders, we have evolved into the leading stocking distributor and manufacturer of Duplex SS 2205 Seamless Pipes. Initially, we began stocking ASTM A790 UNS S31803 Duplex Steel Pipes from other prominent manufacturers in the United States and Europe. Today, we are recognized as the foremost stockholder of Duplex S 2205 Seamless Pipes in both India and China. Notably, we are China's sole provider of Duplex 2205 Pipes in all specifications including SCH 40 Stainless Steel Pipe, SCH 80 Duplex SS 2205 Seamless Pipe, SCH 160 Duplex 2205 Welded Pipe, SCH 10 Duplex SS 2205 Pipe, SCH XS Duplex 2205 Fabricated Pipe, and SCH XXS Duplex 2205 LSAW Pipe. Enjoy 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 composed of 22% chromium, 3% molybdenum, and 5-6% nickel. This highly sought-after grade boasts twice the yield strength of standard austenitic grades, along with exceptional fatigue strength. Its robust design ensures remarkable resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even under severe conditions.
Manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). Uneven cooling can lead to cracking, so maintaining consistent temperatures is crucial.
The Duplex 2205 Stainless Steel Tube offers exceptional formability across numerous manufacturing processes. However, its high strength can be challenging. Even with powerful equipment, the increased springback inherent to this grade must be meticulously considered.
Machining Duplex 2205 is somewhat more demanding than machining 300 series austenitic stainless steels, necessitating higher cutting forces and resulting in quicker tool wear. Below are essential machining guidelines: A) Employ a powerful, rigid machine with robust tool and workpiece mounts; B) Maintain short tool extensions to reduce vibration; C) Limit the tool nose radius to ensure a sharp edge on the carbide, while preserving adequate strength; D) Strategically plan the machining sequence to keep the depth of cut beneath the work-hardened layer from the prior operation.
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