| 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 offers outstanding resistance to chloride-induced pitting and stress corrosion cracking.
ELEVATED TEMPERATURE RESISTANCE The ASME Boiler and Pressure Vessel Code sets an upper-temperature limit of 600°F (315°C). Prolonged exposure to higher temperatures can cause embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than double the strength of conventional austenitic stainless steels in the annealed condition. Also available in cold-worked condition with yield strength exceeding 160 ksi, it maintains excellent toughness even at temperatures down to -50°F (-10°C).
WORKABILITY Alloy 2205 is suitable for cold forming but has a high work-hardening rate, requiring intermediate anneals. Post hot or cold forming, annealing is recommended to achieve optimal stress corrosion resistance.
Our forming capabilities are second to none, featuring advanced extrusion and cold-working assets for tube and pipe manufacturing. We pride ourselves on owning 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. offers a comprehensive one-stop-shop solution. Whether it's overseeing an entire project or executing specific machining jobs, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and an array of specialized services. Trust us to handle every detail with expertise and efficiency.
With vertical and horizontal presses ranging from 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. possesses the industry's most comprehensive pipe extrusion capabilities. This advanced technology empowers us to manufacture the longest lengths and largest diameter pipes available, setting new standards in the industry.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a premier duplex stainless steel, enhanced with nitrogen to elevate its corrosion resistance, especially in welding applications. In its annealed state, Alloy 2205 boasts more than double the strength of regular austenitic stainless steels and surpasses Alloy 316 in numerous corrosive environments. Renowned as the most widely used duplex stainless steel, Alloy 2205, also known as UNS N31803 and 22-Chromium, contains 22% chromium, 3% molybdenum, and 5-6% nickel. This exceptional alloy exhibits superior fatigue strength and robust resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion, making it ideal for harsh conditions.
At Daxun Alloys, we specialize in producing stainless steel Alloy 2205 tubing in diverse forms and sizes, including seamless, welded, precision, and capillary tubing. Upholding our commitment to quality, our Alloy 2205 products adhere to a range of industrial standards set by organizations such as ASTM, ASME, ISO, UNS, and EN.
Dah Hsun Alloys stands as a dependable supplier and stockist of Duplex 2205 Stainless Steel Pipes. Our extensive inventory in China encompasses Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, as well as Cold Drawn Stainless Steel Pipes. Since our inception in 1999, we have been manufacturing both Duplex 2205 Seamless and Welded Pipes, earning ISO 9001 certification along the way. We proudly export ASTM A789 UNS S31803 Seamless Pipes and maintain over 25,000 tonnes of Duplex 2205 Stainless Steel Pipes in various configurations. Recognized as the leading Duplex 2205 Stainless Steel Pipe Manufacturer in China, we have evolved from a 2205 Duplex Stainless Steel Pipe Trader to a prominent stocking distributor. Our inventory includes pipes from global manufacturers, making us the top stockholder of Duplex S 2205 Seamless Pipes in India and China. We offer a comprehensive range of specifications, including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS, ensuring we meet all your requirements at the most competitive prices 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 an exceptional duplex ferritic-austenitic stainless steel containing 22% chromium, 3% molybdenum, and 5-6% nickel. It stands as the most widely utilized duplex stainless steel grade, boasting yield strength that is twice that of typical austenitic grades. This steel also delivers outstanding fatigue strength and resists stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even under the harshest conditions.
Most manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). If the workpiece is not compact, the edge may cool much faster than the bulk, risking cracks in the cooler areas.
The Duplex 2205 Stainless Steel Tube showcases exceptional formability across various manufacturing processes. However, its high strength can pose challenges. Even with powerful equipment, the significant springback due to this grade's high strength must be carefully considered.
Duplex 2205 presents a slightly greater challenge in machining compared to the 300 series austenitic stainless steels. It demands higher cutting forces, leading to quicker tool wear. Here are key machining guidelines: A) Utilize a robust and rigid machine with strong tool and workpiece mounts; B) Minimize tool extensions to reduce vibration; C) Avoid longer than necessary tool nose radii to maintain a sharp edge while ensuring adequate strength; D) Sequence machining operations so that each cut remains below the previously work-hardened layer.
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