| 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 demonstrates exceptional resistance to chloride-induced pitting and stress corrosion cracking.
ELEVATED TEMPERATURE RESISTANCE According to the ASME Boiler and Pressure Vessel Code, Alloy 2205 has an upper-temperature limit of 600°F (315°C). Extended exposure to temperatures above this threshold may cause embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels in its annealed condition. It can also be provided in the cold-worked condition with a yield strength exceeding 160 ksi, maintaining good toughness at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 is capable of cold forming. Due to its high work-hardening rate, intermediate anneals may be required. Subsequent annealing is recommended after hot or cold forming to achieve optimal stress corrosion resistance.
Our forming capabilities are unrivaled, 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 powerhouse, Daxun provides a seamless, all-encompassing solution for your manufacturing needs. From overseeing entire projects to executing specialized machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a suite of specialized services.
Equipped with both vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the industry's most advanced pipe extrusion capabilities. This enables us to produce pipes of unprecedented lengths and diameters, meeting the most demanding specifications.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a duplex stainless steel enhanced with nitrogen to boost corrosion resistance, especially in welding applications. In its annealed state, Alloy 2205 boasts more than double the strength of traditional austenitic stainless steels and superior corrosion resistance compared to Alloy 316 in numerous environments. It stands as the most widely utilized duplex stainless steel. Also referred to as UNS N31803 and 22-Chromium, Duplex 2205 incorporates 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This composition ensures excellent fatigue strength and remarkable resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in severe conditions.
At Daxun Alloys, we meticulously produce stainless steel alloy 2205 tubing in a diverse array of forms and sizes, including seamless, welded, precision, and capillary tubing. Upholding the highest industry standards, our alloy 2205 products meet rigorous specifications outlined by ASTM, ASME, ISO, UNS, and EN.
Dah Hsun Alloys stands as a trusted supplier of Duplex 2205 Stainless Steel Pipes. Boasting a reputable stock, we offer Duplex 2205 Round Pipes, Duplex 2205 Square Pipes, Duplex SS 2205 Polished Pipes, Duplex 2205 Electro Polished Pipes, Duplex SS 2205 Square and Rectangular Pipes, and Duplex 2205 Cold Drawn Stainless Steel Pipes, all housed in our advanced China facility. As a premier Duplex 2205 Stainless Steel Pipe Manufacturer in China since 1999, our ISO 9001 certification underscores our commitment to quality. We proudly export ASTM A789 UNS S31803 Seamless Pipes within China and maintain over 25,000 tonnes of Duplex 2205 Stainless Steel Pipe in diverse shapes, sizes, and coatings. This makes us one of China's largest ASTM A789 UNS S32205 pipe stockists. Initially founded as a 2205 Duplex Stainless Steel Pipe Trader, we evolved into a leading stocking distributor of Duplex SS 2205 Seamless Pipes. Our reputation as the dominant Duplex 2205 Duplex Steel Pipe Manufacturer in China speaks to our enduring quality. By stocking ASTM A790 UNS S31803 Duplex Steel Pipes from other esteemed manufacturers in the US and Europe, we have secured our status as the top stockholder of Duplex S 2205 Seamless Pipes in both India and China. We remain the exclusive provider in China for Duplex 2205 Pipes across all specifications, including SCH 40 Stainless Steel Pipe, SCH 80 Duplex SS 2205 Seamless Pipe, SCH 160 Duplex 2205 Welded Pipe, SCH 10 Duplex SS 2205 Pipe, SCH XS Duplex 2205 Fabricated Pipe, and SCH XXS Duplex 2205 LSAW Pipe. Secure the best prices for 2205 Duplex Stainless Steel Pipes in China with us.
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 duplex ferritic-austenitic stainless steel that contains 22% chromium, 3% molybdenum, and 5-6% nickel. As the most commonly used duplex stainless steel grade, it boasts a yield strength twice that of regular austenitic grades. Duplex 2205 also offers outstanding fatigue strength and superior resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even under severe 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 be cooler than the bulk, increasing the risk of cracking in cooler areas.
The Duplex 2205 Stainless Steel Tube is renowned for its exceptional formability across various manufacturing processes. While its high strength can present challenges, it's crucial to consider the increased springback caused by this grade's robust nature, even when using powerful equipment.
Duplex 2205 is somewhat more challenging to machine compared to the 300 series austenitic stainless steels. It necessitates higher cutting forces, leading to quicker tool wear. Here are key 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 practical to maintain a sharp carbide edge without sacrificing strength; D) Design the machining sequence to ensure the depth of cut stays below the work-hardened layer from any prior operations.
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