| 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 possesses remarkable resistance to chloride-induced pitting and stress corrosion cracking, making it highly reliable.
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 result in embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels in the annealed condition. It can also be supplied in the cold-worked condition with yield strength surpassing 160 ksi, maintaining good toughness at temperatures down to -50°F (-10°C).
WORKABILITY Alloy 2205 is highly adaptable to cold forming. Due to its high work-hardening rate, intermediate anneals may be necessary. Annealing is also recommended post hot forming or cold forming to achieve optimal stress corrosion resistance.
Our forming capabilities are unmatched, featuring cutting-edge extrusion and cold-working technology for tube and pipe manufacturing. We pride ourselves on having one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a vertically integrated powerhouse, Jiangsu Daxun Alloy Co., Ltd. offers a seamless, one-stop solution for all your project needs. From full-scale project management to specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a range of specialized services designed to meet your exacting standards.
Boasting vertical and horizontal presses with capacities ranging from 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. holds the industry's most extensive pipe extrusion capabilities. This enables us to produce pipes of the longest lengths and largest diameters, setting new industry benchmarks.
Suppliers of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Alloy 2205, renowned for its duplex nature, is fortified with nitrogen to boost corrosion resistance, especially in welding contexts. In its annealed form, Alloy 2205 exhibits more than double the strength of typical austenitic stainless steels and surpasses Alloy 316 in corrosion resistance across many environments. Widely recognized as the most frequently utilized duplex stainless steel, Alloy 2205, also termed UNS N31803 and 22-Chromium, comprises 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This composition endows Duplex 2205 with remarkable fatigue strength and robust resistance against stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion under severe conditions.
At Daxun Alloys, we specialize in manufacturing a diverse array of stainless steel Alloy 2205 tubing, including seamless, welded, precision, and capillary forms. Adhering to stringent industrial standards from organizations such as ASTM, ASME, ISO, UNS, and EN, our Alloy 2205 products epitomize quality and reliability across all applications.
Dah Hsun Alloys stands as a trustworthy supplier and stockist of Duplex 2205 Stainless Steel Pipes. As an esteemed stockholder, we offer an extensive inventory of Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, as well as Cold Drawn Stainless Steel Pipes. Our comprehensive facility in China supports the manufacturing of Duplex 2205 Seamless and Welded Pipes, maintaining our ISO 9001 certification since our establishment in 1999. We boast a substantial stockpile exceeding 25000 tonnes, making us one of China's largest stockists for ASTM A789 UNS S32205 pipes. Initially founded as a trader, we have evolved to be the foremost stocking distributor and manufacturer of Duplex 2205 Stainless Steel Pipes in China. Furthermore, we import high-quality Duplex Steel Pipes from leading manufacturers in the USA and Europe. Today, our extensive reach positions us as the premier stockholder of Duplex S 2205 Seamless Pipes in both India and China. We are distinctively the sole provider in China offering a comprehensive range of Duplex 2205 Pipes, including variations such as SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS LSAW pipes. Purchase top-tier 2205 Duplex Stainless Steel Pipes at the best prices with us 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 featuring 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned for its exceptional yield strength, which is double that of standard austenitic grades, Duplex 2205 also boasts outstanding fatigue strength. It excels in resisting stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even under the most severe conditions.
For optimal results, manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). Ensuring the workpiece is compact is crucial to avoid cracking in cooler areas.
Our Duplex 2205 Stainless Steel Tube is renowned for its exceptional formability across numerous manufacturing processes. However, its impressive high strength can present challenges. Even with powerful equipment, the increased springback inherent to this grade must be carefully managed to ensure optimal results.
Machining Duplex 2205 is somewhat more complex compared to 300 series austenitic stainless steels. It demands higher cutting forces, leading to faster tool wear. To achieve the best results, adhere to the following guidelines: A) Utilize a powerful, rigid machine equipped with robust tool and workpiece mounts; B) Keep tool extensions minimal to reduce vibration; C) Ensure the tool nose radius is no longer than necessary, maintaining a sharp carbide edge while providing enough strength; D) Sequence machining operations to keep the depth of cut always below the previously work-hardened layer.
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