| 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 delivers exceptional resistance to chloride-induced pitting and stress corrosion cracking.
ELEVATED TEMPERATURE RESISTANCE According to the ASME Boiler and Pressure Vessel Code, the upper-temperature limit is set at 600°F (315°C). Prolonged exposure to temperatures beyond this threshold can lead to embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels in the annealed state. Additionally, it can be supplied in the cold-worked condition with yield strengths exceeding 160 ksi, maintaining excellent toughness even at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 can be efficiently cold formed. Due to its high work-hardening rate, intermediate anneals may be necessary. Annealing is also recommended after hot forming or cold forming to achieve optimal stress corrosion resistance.
Our forming capabilities are unmatched, featuring state-of-the-art extrusion and cold working assets for tube and pipe manufacturing. We are proud to house one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As an all-encompassing manufacturer, Jiangsu Daxun Alloy Co., Ltd. delivers an extensive one-stop-shop solution. From overseeing entire projects to executing specific machining tasks, our advanced capabilities encompass 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, Daxun boasts the industry's most extensive pipe extrusion capabilities. This enables us to produce the longest and largest diameter pipes available on the market.
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205 is a premium duplex stainless steel, specially enhanced with nitrogen to boost corrosion resistance, particularly for welding applications. In its annealed condition, Alloy 2205 boasts more than double the strength of conventional austenitic stainless steels and surpasses Alloy 316 in corrosion resistance across numerous conditions. Widely acclaimed as the most frequently utilized duplex stainless steel, Alloy 2205, also recognized as UNS N31803 and 22-Chromium, comprises 22% chromium, 3% molybdenum, and 5-6% nickel. It offers remarkable fatigue strength and outstanding resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in severe environments.
At Daxun Alloys, we excel in producing stainless steel alloy 2205 tubing available in a diverse range of forms and sizes, including seamless, welded, precision, and capillary tubing. Upholding the highest standards, our alloy 2205 adheres to various industrial specifications set by organizations such as ASTM, ASME, ISO, UNS, and EN.
Dah Hsun Alloys stands as a dependable supplier of Duplex 2205 Stainless Steel Pipes. As a trusted stockist, we maintain a comprehensive inventory of Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, Square and Rectangular Pipes, and Cold Drawn Stainless Steel Pipes at our facility in China. Since our inception in 1999, we have been a prominent manufacturer of Duplex 2205 Seamless and Welded Pipes. Certified with ISO 9001, we specialize in exporting ASTM A789 UNS S31803 Seamless Pipes within China. With a robust stock of over 25000 tonnes of Duplex 2205 Stainless Steel Pipes in varying shapes, sizes, and coatings, we are one of the foremost ASTM A789 UNS S32205 pipe stockists in China. We originated as traders of 2205 Duplex Stainless Steel Pipes and transitioned into a leading stocking distributor of Duplex SS 2205 Seamless Pipes. Currently, we are acknowledged as the premier Duplex 2205 Duplex Steel Pipe Manufacturer in China. Our extensive inventory includes SCH 40 Stainless Steel Pipes, SCH 80 Duplex SS 2205 Seamless Pipes, SCH 160 Duplex 2205 Welded Pipes, SCH 10 Duplex SS 2205 Pipes, SCH XS Duplex 2205 Fabricated Pipes, and SCH XXS Duplex 2205 LSAW Pipes. Secure the finest quality 2205 Duplex Stainless Steel Pipes at the most competitive prices 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 sophisticated duplex ferritic-austenitic alloy comprising 22% chromium, 3% molybdenum, and 5-6% nickel. This grade is the most extensively utilized duplex stainless steel, offering double the yield strength of conventional austenitic grades. It boasts exceptional fatigue strength and outstanding resistance to stress corrosion cracking, crevice and pitting corrosion, erosion, and general corrosion in harsh environments.
Manufacturers recommend maintaining a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). If the workpiece is not properly compact, the edges may cool much faster than the bulk, risking cracks in the cooler regions.
The Duplex 2205 Stainless Steel Tube showcases remarkable formability across a multitude of manufacturing processes. However, its exceptional high strength can pose challenges. Even with robust equipment, it's crucial to consider the increased springback characteristic of this high-strength grade.
Duplex 2205 presents a slightly higher challenge to machine compared to the 300 series austenitic stainless steels. The increased cutting forces lead to quicker tool wear. Here are some machining best practices: A) Utilize a powerful, rigid machine with strong tool and workpiece mounts; B) Maintain short tool extensions to reduce vibration; C) Opt for a minimal tool nose radius to ensure a sharp edge while retaining carbide strength; D) Design machining sequences to ensure the depth of cut remains below the work-hardened layer from previous operations.
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