| 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 boasts excellent resistance to chloride-induced pitting and stress corrosion cracking.
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 offers more than twice the strength of conventional austenitic stainless steels when annealed. It can also be supplied in a cold-worked condition with yield strength surpassing 160 ksi, maintaining good toughness even at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 is amenable to cold forming but has a high work-hardening rate, necessitating intermediate anneals. Post-forming annealing is also recommended for optimal stress corrosion resistance.
Our forming capabilities are world-class, featuring advanced extrusion and cold working assets for tube and pipe manufacturing. We proudly house 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 an all-encompassing one-stop-shop experience. From managing entire projects to executing specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Equipped with vertical and horizontal presses ranging from 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. boasts the industry's most extensive pipe extrusion capabilities. This enables us to produce the longest lengths and largest diameter pipes available.
We specialize in ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe, serving diverse industries with top-tier materials. Alloy 2205 is a superior duplex stainless steel, enhanced with nitrogen to boost its corrosion resistance, especially in welding applications. In its annealed condition, Alloy 2205 exhibits more than double the strength of standard austenitic stainless steels and surpasses Alloy 316 in various corrosive environments. Recognized as the most widely used duplex stainless steel, Alloy 2205, also known as UNS N31803 and 22-Chromium, comprises 22% chromium, 3% molybdenum, and 5-6% nickel alloy. This composition endows Duplex 2205 with excellent fatigue strength and exceptional resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in demanding conditions.
At Jiangsu Daxun Alloys, we manufacture a wide array of stainless steel alloy 2205 tubing options, including seamless, welded, precision, and capillary tubing. Our Alloy 2205 products meet rigorous industrial standards from esteemed organizations such as ASTM, ASME, ISO, UNS, and EN, ensuring reliable performance and high quality.
Dah Hsun Alloys stands as a trusted supplier of Duplex 2205 Stainless Steel Pipes. As an esteemed stockist, we offer a diverse inventory, including Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, and Cold Drawn Stainless Steel Pipes, all housed at our China facility. Since 1999, we have excelled as a leading manufacturer and ISO 9001-certified provider of Duplex 2205 Seamless and Welded Pipes. With a massive stockpile of over 25,000 tonnes of Duplex 2205 Stainless Steel Pipe, we proudly rank among China's largest ASTM A789 UNS S32205 pipe stockists. Initially founded as a 2205 Duplex Stainless Steel Pipe Trader, we have evolved into a premier stocking distributor, sourcing ASTM A790 UNS S31803 Duplex Steel Pipe from esteemed manufacturers in the United States and Europe. Today, we are recognized as the foremost stockholder of Duplex S 2205 Seamless Pipes in China and India, offering an extensive range of specifications, including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS LSAW Duplex 2205 Pipes. Discover unbeatable 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 an exceptional duplex ferritic-austenitic stainless steel. Comprising 22% chromium, 3% molybdenum, and 5-6% nickel, it stands as the most prevalent duplex grade. This robust alloy offers a yield strength twice that of standard austenitics, along with outstanding fatigue strength. Additionally, it displays remarkable resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even under the most challenging conditions.
For hot forming, manufacturers typically recommend maintaining temperatures between 2010 and 2100°F (1100 and 1150°C). If the workpiece is not uniformly heated, cooler edges may ***.
The Duplex 2205 Stainless Steel Tube excels in formability across various manufacturing processes despite its high strength, which can present some challenges. The exceptional strength of Duplex 2205 necessitates consideration of higher springback. Even with powerful equipment, this increased springback must be managed for optimal outcomes.
Machining Duplex 2205 is slightly more challenging than working with 300 series austenitic stainless steels. It requires greater cutting forces, leading to quicker tool wear. Follow these machining guidelines for superior results: A) Utilize a robust, rigid machine with firm tool and workpiece mounts; B) Keep tool extensions short to reduce vibration; C) Maintain a minimal tool nose radius to ensure a sharp carbide edge while retaining necessary strength; D) Design the machining sequence to ensure the depth of cut consistently penetrates below the work-hardened layer from the prior operation.
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