| 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 exceptional resistance to chloride-induced pitting and stress corrosion cracking, ensuring reliability.
RESILIENCE AT ELEVATED TEMPERATURES The ASME Boiler and Pressure Vessel Code sets a maximum temperature limit of 600°F (315°C) for Alloy 2205. Prolonged exposure to higher temperatures can lead to embrittlement.
SUPERIOR MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels when annealed. In the cold-worked state, its yield strength can exceed 160 ksi, maintaining impressive toughness at temperatures as low as -50°F (-10°C).
EXCELLENT WORKABILITY Alloy 2205 can be proficiently cold-formed. Due to its high work-hardening rate, intermediate annealing may be necessary. Post hot or cold forming, annealing is advised to achieve optimal stress corrosion resistance.
Our forming capabilities are truly unparalleled, showcasing state-of-the-art extrusion and cold working assets that set the gold standard in tube and pipe manufacturing. We proudly operate one of the world's largest pilger mills and employ a unique hydroforming process, ensuring unmatched precision in fittings.
As a fully integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a comprehensive, one-stop-shop solution. Whether overseeing an entire project or handling specific machining tasks, our extensive capabilities encompass straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a range of specialized services.
Equipped with 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 expertise allows us to manufacture pipes in the longest lengths and largest diameters available in the market.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a highly advanced duplex stainless steel, meticulously engineered with added nitrogen to enhance its corrosion resistance, especially for welding applications. In its annealed state, Alloy 2205 boasts more than double the strength of conventional austenitic stainless steels and surpasses Alloy 316 in corrosion resistance across many environments. Renowned as the most frequently utilized duplex stainless steel, Alloy 2205, also identified as UNS N31803 and 22-Chromium, integrates 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This composition grants Duplex 2205 exceptional fatigue strength and robust resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion, even in the most severe conditions.
At Daxun Alloys, we excel in producing the versatile Alloy 2205 stainless steel tubing, available in a comprehensive range of styles and dimensions, such as seamless, welded, precision, and capillary tubing. Upholding our commitment to quality, our Alloy 2205 products adhere to stringent industrial standards set by leading organizations including ASTM, ASME, ISO, UNS, and EN.
Dah Hsun Alloys stands out as a dependable supplier of Duplex 2205 Stainless Steel Pipes. Renowned for our extensive inventory, we offer Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, and Cold Drawn Stainless Steel Pipes, all meticulously stored at our state-of-the-art facility in China. As a pioneering Duplex 2205 Stainless Steel Pipe Manufacturer since 1999, we pride ourselves on our ISO 9001 certification. Our vast stock, exceeding 25000 tonnes in various shapes, sizes, and coatings, solidifies our position as one of China's largest ASTM A789 UNS S32205 pipe stockists. Initially a trader, we have grown into the leading manufacturer and distributor of Duplex 2205 pipes. Our portfolio includes ASTM A790 UNS S31803 Duplex Steel Pipe sourced from premier manufacturers in the US and Europe. Today, we are the foremost stockholder of Duplex S 2205 Seamless Pipes in India and China, offering an extensive range of specifications such as SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS Duplex 2205 pipes. Acquire top-quality 2205 Duplex Stainless Steel Pipes 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 a high-performance duplex ferritic-austenitic stainless steel, meticulously crafted with 22% chromium, 3% molybdenum, and 5-6% nickel content. Renowned as the most commonly utilized duplex stainless steel grade, it boasts a yield strength that is twice that of regular austenitic grades. Distinguished by its superior fatigue strength, Duplex 2205 excels in resisting stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion, even under the most severe conditions.
Manufacturers typically recommend a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). If the workpiece isn't compact, cooler edges might risk cracking compared to the bulk.
The Duplex 2205 Stainless Steel Tube is renowned for its excellent formability across various manufacturing processes. This high-strength material can pose certain challenges, such as increased springback, which must be considered even when using powerful equipment.
Machining Duplex 2205 can be somewhat more challenging compared to the 300 series austenitic stainless steels. The higher cutting forces required lead to quicker tool wear. Here are some essential machining guidelines: A) Utilize a powerful, rigid machine with robust tool and workpiece mounts; B) Minimize tool extensions to reduce vibration; C) Avoid excessive tool nose radius to maintain a sharp carbide edge without compromising strength; D) Plan the machining sequence to ensure the cutting depth remains beneath the work-hardened layer from the previous operation.
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