| 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 exceptional resistance to chloride-induced pitting and stress corrosion cracking, making it ideal for harsh environments.
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 can lead to embrittlement.
MECHANICAL PROPERTIES Alloy 2205 offers more than double the strength of conventional austenitic stainless steels in its annealed condition. It can also be supplied in a cold-worked condition with a yield strength exceeding 160 ksi. It maintains excellent toughness at temperatures down to -50°F (-10°C).
WORKABILITY Alloy 2205 can be cold formed. However, due to its high work-hardening rate, intermediate anneals may be necessary. 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 for tube and pipe manufacturing. We boast one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a vertically integrated manufacturer, Daxun offers a comprehensive one-stop-shop solution for all your project needs. Whether you require complete project management or specialized machining tasks, we excel in straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and more. Experience unmatched efficiency and quality with Daxun's versatile capabilities.
With vertical and horizontal presses ranging from 12,000 to an impressive 35,000 tons, Daxun boasts the industry's most extensive pipe extrusion capabilities. This exceptional capacity allows us to manufacture pipes in the longest lengths and largest diameters, setting new benchmarks in the industry.
Your Premier Source for ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe & 2205 (S31803) Duplex Stainless Steel Welded Pipe Alloy 2205 stands out as a duplex stainless steel enhanced with nitrogen to significantly elevate corrosion resistance, especially in welding applications. When annealed, Alloy 2205 boasts more than double the strength of standard austenitic stainless steels while offering superior corrosion resistance compared to Alloy 316 across many scenarios. Recognized as the most widely utilized duplex stainless steel, Alloy 2205 is also termed UNS N31803 and 22-Chromium. Characterized by its composition of 22% chromium, 3% molybdenum, and 5-6% nickel alloy, Duplex 2205 provides outstanding fatigue strength and exceptional resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion even in the harshest environments.
At Daxun Alloys, we specialize in producing stainless steel alloy 2205 tubing available in a myriad of forms and sizes, including seamless, welded, precision, and capillary tubing. Consistent with our unwavering commitment to quality, our alloy 2205 products adhere to various esteemed industrial standards from globally recognized organizations like ASTM, ASME, ISO, UNS, and EN.
Daxun Alloys is renowned for its reliability as a supplier of Duplex 2205 Stainless Steel Pipes. Our extensive inventory includes Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, as well as Cold Drawn Stainless Steel Pipes. Established in 1999, we have cultivated a reputation as a premier manufacturer of Duplex 2205 Seamless and Welded Pipes. Certified to ISO 9001 standards, we export ASTM A789 UNS S31803 Seamless Pipes from our vast stockpile of over 25,000 tonnes, positioning us as one of China's largest stockists. Initially founded as a 2205 Duplex Stainless Steel Pipe trader, we evolved into a leading distributor and stockholder, sourcing ASTM A790 UNS S31803 Duplex Steel Pipes from manufacturers across the USA and Europe. Today, we proudly hold the title of the foremost stockholder of Duplex S 2205 Seamless Pipes in both India and China. Offering all specifications, including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS, our extensive range ensures you find the perfect solution. Purchase your 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 an exceptional duplex ferritic-austenitic stainless steel featuring 22% chromium, 3% molybdenum, and 5-6% nickel. Esteemed as the most widely utilized duplex stainless steel grade, it boasts a yield strength that is double that of standard austenitic grades. Additionally, it excels in fatigue strength and demonstrates remarkable resistance to stress corrosion cracking, crevice, pitting, erosion, and overall corrosion under harsh conditions.
Manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). If the workpiece is not uniformly heated, cooler edges may risk cracking.
Duplex 2205 Stainless Steel Tube showcases exceptional formability across various manufacturing methods. However, due to its high strength, challenges may arise. Even with sufficiently powerful equipment, one must account for the increased springback associated with this grade's robust nature.
Machining Duplex 2205 is slightly more challenging compared to 300 series austenitic stainless steels. It demands higher cutting forces, leading to quicker tool wear. Here are some essential guidelines: A) Utilize a powerful, rigid machine with robust tool and workpiece mounts; B) Keep tool extensions minimal to reduce vibration; C) Avoid excessive tool nose radius to ensure the carbide maintains a sharp edge while providing adequate strength; D) Plan the machining sequence to ensure each cut stays below the work-hardened layer from previous operations.
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