| 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 showcases excellent 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). Prolonged exposure to temperatures above this threshold can lead to embrittlement.
MECHANICAL PROPERTIES Alloy 2205 offers more than double the strength of standard austenitic stainless steels in the annealed state. It can also be provided in a cold-worked condition, with yield strength surpassing 160 ksi. The alloy maintains excellent toughness at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 is highly amenable to cold forming, though its high work-hardening rate may necessitate intermediate anneals. Annealing is also recommended post hot forming or cold forming to achieve optimal stress corrosion resistance.
Our forming capabilities are unparalleled, featuring advanced extrusion and cold-working assets for tube and pipe manufacturing. We pride ourselves on housing one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a fully integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. provides a comprehensive and seamless one-stop-shop solution. From overseeing entire projects to executing specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and bespoke services.
Equipped with vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the industry's most extensive pipe extrusion capabilities. This enables us to produce pipes of extraordinary lengths and the largest diameters available on the market.
Leading Suppliers of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipes and 2205 (S31803) Duplex Stainless Steel Welded Pipes Alloy 2205: The Premier Choice in Duplex Stainless Steel! Enhanced with nitrogen, Alloy 2205 offers unparalleled corrosion resistance, especially in welding. In its annealed state, it boasts more than double the strength of standard austenitic stainless steels and surpasses Alloy 316 in corrosion resistance under many conditions. Recognized as the most widely utilized duplex stainless steel, Alloy 2205, also known as UNS N31803 or 22-Chromium, contains 22% chromium, 3% molybdenum, and 5-6% nickel. This composition ensures superior fatigue strength and extensive 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 in a plethora of forms and sizes, including seamless, welded, precision, and capillary tubing. Adhering to stringent industrial standards, our products are certified by ASTM, ASME, ISO, UNS, and EN, ensuring top-notch quality and reliability.
Daxun Alloys: Your Trusted Supplier for Premium Duplex 2205 Stainless Steel Pipes. As a renowned stockist, we offer a comprehensive range of Duplex 2205 Round, Square, Polished, Electro Polished, Rectangular, and Cold Drawn Stainless Steel Pipes from our facility in China. Proudly manufacturing Duplex 2205 Seamless and Welded Pipes since 1999, we hold ISO 9001 certification. With a vast inventory exceeding 25,000 tonnes, we are one of China's largest stockists of ASTM A789 UNS S31803 pipes. From our humble beginnings as a 2205 Duplex Stainless Steel Pipe Trader, we have evolved into a leading stocking distributor and manufacturer in China. We also stock ASTM A790 UNS S31803 pipes from top manufacturers in the United States and Europe. Today, we are recognized as the leading stockholder of Duplex S 2205 Seamless Pipes in both India and China, offering a full range of specifications including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS Duplex 2205 pipes. Get the best deals on 2205 Duplex Stainless Steel Pipes in China with us.
Comprehensive 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, a duplex ferritic-austenitic stainless steel, contains 22% chromium, 3% molybdenum, and 5-6% nickel. It stands as the most widely utilized duplex stainless steel grade, boasting twice the yield strength of conventional austenitic grades. With unparalleled fatigue strength, it also offers exceptional resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion under harsh 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 edges may be significantly cooler than the bulk, risking cracking in the cooler areas.
The Duplex 2205 Stainless Steel Tube showcases exceptional formability across a myriad of manufacturing processes. However, its formidable strength can pose challenges. Even with sufficiently powerful equipment, the increased springback due to the robust nature of this grade must be meticulously considered.
Machining Duplex 2205 requires a nuanced approach, as it demands more effort than machining the 300 series austenitic stainless steels. The process necessitates higher cutting forces, resulting in quicker tool wear. Below are essential machining guidelines: A) Utilize a robust, rigid machine with strong tool and workpiece mounts; B) Keep tool extensions minimal to reduce vibration; C) Maintain a minimal tool nose radius for a sharp carbide edge, yet ensure adequate strength; D) Sequence the machining operations so the depth of cut remains beneath the work-hardened layer from prior procedures.
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