| 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 RESISTANCEAlloy 2205 has excellent resistance to chloride-induced pitting and stress corrosion cracking.
ELEVATED TEMPERATURE RESISTANCEThe ASME Boiler and Pressure Vessel Code places an upper-temperature limit of 600°F (315°C). Exposure to temperatures above this for extended periods results in embrittlement.
MECHANICAL PROPERTIESAlloy 2205 has more than twice the strength of conventional austenitic stainless steels in the annealed condition. It can also be provided in the cold-worked condition with yield strength exceeding 160 ksi. It maintains good toughness at temperatures down to -50°F (-10°C).
WORKABILITYAlloy 2205 can be cold formed. However, it has a high work-hardening rate, so intermediate anneals may be required. Annealing is also recommended subsequent to hot forming or cold forming in order to achieve optimal stress corrosion resistance.
Our forming capabilities are second to none, 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. Whether it's managing an entire project or handling specific machining jobs, our capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
With vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun possesses the industry's most comprehensive pipe extrusion capabilities. This allows us to manufacture the longest lengths and largest diameter pipes available.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe SuppliersAlloy 2205 is a duplex stainless steel with nitrogen added to improve corrosion resistance, particularly in welding applications. In annealed condition, Alloy 2205 is more than twice as strong as ordinary austenitic stainless steels and has greater corrosion resistance than Alloy 316 in many conditions. It's the most often used duplex stainless steel. Alloy 2205 is also known as UNS N31803 and 22-Chromium. Duplex 2205 is a popular duplex ferritic stainless steel that has 22% chromium, 3% molybdenum, and 5-6% nickel alloy. Duplex 2205 has good fatigue strength and is very resistant to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in harsh situations.
At Daxun Alloys, we produce stainless steel alloy 2205 tubing in a variety of forms and sizes, such as seamless, welded, precision and capillary tubing. Like all the products we sell, our alloy 2205 complies with various industrial standards from organizations such as ASTM, ASME, ISO, UNS and EN.
Dah Hsun Alloys is a reliable supplier of Duplex 2205 Stainless Steel Pipes. As a reputable stockist, we stock 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 at our facility in China. We are a Duplex 2205 Stainless Steel Pipe Manufacturer in China. We have been manufacturing Duplex 2205 Seamless Pipe and Duplex 2205 Welded Pipe since 1999. We are ISO 9001 certified. We export ASTM A789 UNS S31803 Seamless Pipe in China. We stock over 25000 tonnes of Duplex 2205 Stainless Steel Pipe in various shapes, sizes, and coatings, making us one of the largest astm a789 uns s32205 pipe stockists in China. We were founded as 2205 Duplex Stainless Steel Pipe Trader and then became a stocking distributor of Duplex SS 2205 Seamless Pipe. We are recognised as the leading Duplex 2205 Duplex Steel Pipe Manufacturer in China. We began stocking ASTM A790 uns s31803 Duplex Steel Pipe from other 2205 pipe manufacturers in the United States and Europe. Today, we are the leading stockholder of Duplex S 2205 Seamless Pipes in India and China. We are China's only provider of Duplex 2205 Pipes in 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. Purchase 2205 Duplex Stainless Steel Pipes at the cheapest price 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 duplex ferritic austenitic stainless steel containing 22% chromium, 3% molybdenum and 5-6% nickel. It is the most commonly used duplex stainless steel grade and has a yield strength twice that of regular austenitic grades. It also has excellent fatigue strength and has excellent resistance to stress corrosion cracking, crevice, pitting, erosion and general corrosion in severe conditions.
Most duplex 2205 steel pipe 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 much cooler than the bulk, and there is a risk of cracking in the cooler area.
Duplex 2205 Stainless Steel Tube exhibits good formability in a variety of manufacturing processes. The high strength of Duplex 2205 can be problematic. Even if the equipment is powerful enough, the higher springback caused by the high strength of this grade must be taken into account.
Duplex 2205 is slightly more difficult to machine than 300 series austenitic stainless steels. Higher cutting forces are required, so the tool wears more quickly. Here are some machining guidelines: A) Use a powerful, rigid machine with very strong tool and workpiece mounts; B) Keep tool extensions short to minimize vibration; C) Do not make the tool nose radius longer than necessary so that the carbide has a sharp edge while still providing adequate strength; D) Design the machining sequence so that the depth of cut is always below the work-hardened layer from the previous operation.
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