| 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 excels in resisting chloride-induced pitting and stress corrosion cracking, ensuring longevity and reliability.
ELEVATED TEMPERATURE RESISTANCE According to the ASME Boiler and Pressure Vessel Code, Alloy 2205 can be used up to 600°F (315°C). Prolonged exposure to higher temperatures, however, may result in embrittlement.
MECHANICAL PROPERTIES Alloy 2205 is renowned for its strength, boasting more than twice the strength of conventional austenitic stainless steels in the annealed condition. It is available in a cold-worked condition with yield strength exceeding 160 ksi and maintains good toughness even at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 can be cold-formed but has a high work-hardening rate, necessitating intermediate anneals. Post-forming annealing is recommended to achieve optimal stress corrosion resistance.
Our forming capabilities are unrivaled, featuring advanced extrusion and cold working technologies 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, Daxun seamlessly delivers a full-spectrum, one-stop-shop solution for all your manufacturing needs. From managing entire projects to executing specific machining jobs, our extensive capabilities encompass straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a suite of specialized services crafted to perfection.
Equipped with vertical and horizontal presses ranging from an impressive 12,000 to a formidable 35,000 tons, Daxun stands at the forefront of the industry with the most comprehensive pipe extrusion capabilities. This empowers us to produce pipes of unprecedented lengths and diameters.
Suppliers of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipes and 2205 (S31803) Duplex Stainless Steel Welded Pipes, expertly crafted to meet the highest standards. Alloy 2205 is a duplex stainless steel enhanced with nitrogen to elevate corrosion resistance, especially in welding applications. In its annealed state, it boasts more than double the strength of standard austenitic stainless steels and offers superior corrosion resistance compared to Alloy 316 in numerous conditions. This widely utilized duplex stainless steel, also known as UNS N31803 and 22-Chromium, contains 22% chromium, 3% molybdenum, and 5-6% nickel alloy, ensuring excellent fatigue strength and exceptional resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in rigorous environments.
At Daxun Alloys, we manufacture stainless steel Alloy 2205 tubing in various forms and sizes, including seamless, welded, precision, and capillary tubing. Adhering to numerous industrial standards such as ASTM, ASME, ISO, UNS, and EN, our Alloy 2205 products guarantee unparalleled quality and reliability.
Daxun Alloys is a distinguished supplier of Duplex 2205 Stainless Steel Pipes. As a trusted stockist, we offer Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, as well as Cold Drawn Stainless Steel Pipes at our facility in China. Since 1999, we have been manufacturing both seamless and welded Duplex 2205 pipes, and our ISO 9001 certification attests to our commitment to excellence. We export ASTM A789 UNS S31803 Seamless Pipes and maintain an extensive inventory of over 25,000 tonnes of Duplex 2205 Stainless Steel Pipes in various forms, making us one of the largest stockists in China. Originally established as a 2205 Duplex Stainless Steel Pipe Trader, we evolved into a leading Duplex SS 2205 Seamless Pipe Manufacturer and prominent stockholder in India and China. Our comprehensive range includes SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS Duplex 2205 Pipes. Enjoy the most competitive prices for 2205 Duplex Stainless Steel Pipes 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 an impressive composition of 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned as the most commonly utilized duplex stainless steel grade, it boasts a yield strength twice that of standard austenitic grades. Its exceptional fatigue strength, coupled with outstanding resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion, makes it ideal for the harshest environments.
Most duplex 2205 steel pipe manufacturers recommend maintaining a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). If the workpiece is not uniformly compact, the edges may cool faster than the bulk, increasing the risk of cracking in these cooler areas.
The Duplex 2205 Stainless Steel Tube is renowned for its excellent formability across diverse manufacturing processes. Despite its remarkable strength posing some challenges, even powerful equipment can manage it effectively by accounting for the higher springback attributed to this grade. The resilience and robustness of Duplex 2205 demand mindful handling in production.
Machining Duplex 2205 requires more effort compared to the 300 series austenitic stainless steels due to its formidable composition. Elevated cutting forces and accelerated tool wear are common, but these guidelines can optimize the process: A) Utilize a robust, rigid machine with firmly mounted tools and workpieces; B) Keep tool extensions minimal to reduce vibration; C) Ensure the tool nose radius is just sufficient for a sharp carbide edge without compromising strength; D) Sequence operations so that each cut penetrates beneath the work-hardened surface from prior operations.
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