| 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 extraordinary 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 temperatures above this threshold can cause embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than double the strength of conventional austenitic stainless steels in the annealed condition. Cold-worked variants can achieve yield strengths exceeding 160 ksi. The alloy retains impressive toughness even at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 can be cold-formed, though its high work-hardening rate may necessitate intermediate annealing. Post-forming annealing is also recommended to maximize stress corrosion resistance.
Our forming capabilities are second to none, featuring advanced extrusion and cold working assets for tube and pipe manufacturing. We proudly host one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a premier vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers an all-encompassing, one-stop-shop solution for all your pipe processing needs. Our robust capabilities span every aspect of your project or specific machining tasks, including expert straightening, precise drilling, meticulous honing, efficient trepanning, accurate cutting, rigorous testing, advanced boring, precision machining, state-of-the-art laser welding, immaculate polishing, flawless turning, and specialized bespoke services tailored to your exact requirements.
Equipped with vertical and horizontal presses ranging from a powerful 12,000 to a staggering 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. boasts the industry's most extensive pipe extrusion capabilities. This unmatched strength allows us to manufacture pipes of exceptional lengths and the largest diameters available on the market today.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a premium duplex stainless steel, enhanced with nitrogen to significantly boost corrosion resistance, especially in welding applications. In its annealed state, Alloy 2205 exhibits more than double the strength of typical austenitic stainless steels and surpasses Alloy 316 in corrosion resistance under numerous conditions. Renowned as the most widely utilized duplex stainless steel, Alloy 2205, also identified as UNS N31803 and 22-Chromium, consists of 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This alloy boasts superior fatigue strength and excellent resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in challenging environments.
At Jiangsu Daxun Alloy Co., Ltd., we specialize in the production of stainless steel Alloy 2205 tubing, available in various forms and sizes, including seamless, welded, precision, and capillary tubing. True to our commitment to quality, our Alloy 2205 products adhere to numerous industrial standards from esteemed organizations like ASTM, ASME, ISO, UNS, and EN.
At Daxun Alloys, we take pride in being a trusted supplier of Duplex 2205 Stainless Steel Pipes. As a well-established stockist, our inventory includes Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, and Cold Drawn Stainless Steel Pipes. Since 1999, we have been manufacturing both Duplex 2205 Seamless and Welded Pipes. Certified with ISO 9001, we export ASTM A789 UNS S31803 Seamless Pipes throughout China. With over 25,000 tonnes of Duplex 2205 Stainless Steel Pipes in diverse shapes, sizes, and coatings, we are one of the largest ASTM A789 UNS S32205 pipe stockists in China. From our beginnings as traders, we have grown into the leading manufacturer and stocking distributor of Duplex SS 2205 Seamless Pipes. We also source ASTM A790 UNS S31803 Duplex Steel Pipes from notable manufacturers in the United States and Europe. Today, we stand as the foremost stockholder of Duplex S 2205 Seamless Pipes in both India and China, offering a comprehensive range of specifications including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS. Secure the best prices for 2205 Duplex Stainless Steel Pipes right here 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 unique alloy combining the best of ferritic and austenitic stainless steels. Enriched with 22% chromium, 3% molybdenum, and 5-6% nickel, it stands out as the most widely utilized duplex grade. Boasting double the yield strength of regular austenitic grades, it offers unparalleled fatigue strength and exceptional resistance to stress corrosion cracking, crevice and pitting corrosion, erosion, and general corrosion under severe conditions.
Max hot forming temperatures recommended are between 2010 and 2100°F (1100 and 1150°C). Beware of cooler edges on non-compact workpieces which may lead to cracking.
Duplex 2205 Stainless Steel Tube boasts exceptional formability across various manufacturing processes, though its superior strength can pose challenges. Despite the power of your equipment, the increased springback due to this grade's high strength should always be considered.
Machining Duplex 2205 presents a slight challenge compared to 300 series austenitic stainless steels. It demands higher cutting forces, resulting in quicker tool wear. Here are essential machining guidelines: A) Utilize a powerful, rigid machine with robust tool and workpiece mounts; B) Minimize tool extensions to reduce vibration; C) Keep the tool nose radius as short as necessary for a sharp carbide edge that still provides sufficient strength; D) Plan the machining sequence to ensure the depth of each cut remains below the work-hardened layer from the previous process.
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