Basic Info.
Model NO.
2205 Stainless Steel Tube
Type
Stainless Steel Pipes
Standard
ASTM, AISI, GB, JIS, EN
Certification
ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Surface Treatment
Pickling
Surface
Pickling, Polishing, Ba
Delivery State
Solution Annealing
Transport Package
Wooden Box + Strapping
Specification
OD 6.35mm-OD 1219mm
Product Description
| 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 |
Premium Stainless Steel Welded TubesOur stainless steel tubular products are meticulously crafted from high-quality stainless steel strips. They are roll-formed and expertly fusion-welded along the longitudinal seam without the use of any filler metal, showcasing the exemplary welding prowess of Daxun.
Rapid Response
- Exceptional resistance to stress corrosion cracking, fatigue, and erosion
- Superb thermal conductivity and lower thermal expansion compared to austenitic steels
- Outstanding and uniform resistance to pitting and crevice corrosion
- Superior resistance to sulfide stress corrosion cracking
- Operational up to 600°F
- Remarkable high yield strength
- Impressive fatigue strength
- Unmatched corrosion resistance
Stainless Steel Drawn TubeOur stainless steel tubular products undergo precise rolling and re-drawing to achieve the final size, making them ideal for thick-walled, large-diameter tubes. This process offers substantial cost benefits over seamless tubes, and all drawn tubes are bright annealed to ensure superior quality.
Daxun's Competitive Edge
CORROSION RESISTANCE Alloy 2205 boasts excellent resistance to chloride-induced pitting and stress corrosion cracking.
HIGH TEMPERATURE RESISTANCE According to the ASME Boiler and Pressure Vessel Code, the upper temperature limit is 600°F (315°C). Prolonged exposure to higher temperatures results in embrittlement.
MECHANICAL PROPERTIES Alloy 2205 delivers more than double the strength of conventional austenitic stainless steels in the annealed condition. It is also available in the cold-worked condition, with yield strength exceeding 160 ksi. It retains good toughness at temperatures down to -50°F (-10°C).
EXCEPTIONAL WORKABILITY Alloy 2205 can be effortlessly cold-formed. Due to its high work-hardening rate, intermediate anneals might be required. Post hot or cold forming, annealing is recommended to achieve optimal stress corrosion resistance.
Stainless Steel Seamless TubeOur superior stainless steel seamless tubes are crafted from hollow sections made via piercing or hot extrusion processes. These tubes are perfect for applications requiring large diameter-to-wall thickness ratios, offering excellent external dimensional tolerances.
Quality, Delivery & Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we uphold a commitment to excellence through rigorous quality assurance tests. These include flattening, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests. Each meticulous test guarantees our materials are perfectly suited for your most demanding applications.
- Throughout the production process, we precisely measure the diameter, thickness, and surface quality of our products. Our standard delivery timeline is between 7 to 15 days. For special-sized products, this timeline may extend up to 20 days, ensuring that every detail meets your exact specifications.
We strictly adhere to the delivery timelines as outlined in our contracts, ensuring punctual and reliable service. - We welcome and support inspections by customer-authorized third-party agencies at our factory.
- We offer complimentary samples to customers for rigorous testing, allowing you to experience our unparalleled quality firsthand.
- We provide on-site or video factory inspection options, ensuring transparency and trust in our manufacturing process.
Explore the unrivaled stainless steel pipe manufacturing expertise of Daxun.
Our forming capabilities are unparalleled, 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.
Unveiling Daxun's exceptional pipe processing capabilities, where precision meets innovation.
As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a comprehensive one-stop-shop solution. Whether managing an entire project or handling specific machining jobs, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and a suite of specialized services designed to meet all your needs.
Daxun: Your ultimate destination for Bigger, Better Pipe Solutions. Elevate your projects with our unmatched expertise.
With vertical and horizontal presses ranging from 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. boasts the industry's most comprehensive pipe extrusion capabilities. This allows us to manufacture pipes in the longest lengths and largest diameters available, setting new standards in the industry.
Daxun proudly supplies the power generation market with essential components including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our products are meticulously designed for nuclear, coal-fired, renewable energy, and combined cycle applications, ensuring optimal performance and reliability.
A Global Leader in Stainless Steel Tubing Fabrication Services
Reliable Suppliers of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipes and 2205 (S31803) Duplex Stainless Steel Welded Pipes Alloy 2205, also known as UNS N31803 and 22-Chromium, is a duplex stainless steel enhanced with nitrogen for superior corrosion resistance, especially in welding applications. In its annealed condition, Alloy 2205 offers more than double the strength of standard austenitic stainless steels and outperforms Alloy 316 in many corrosive environments. This exceptional alloy, comprising 22% chromium, 3% molybdenum, and 5-6% nickel, is the most widely used duplex stainless steel, renowned for its excellent fatigue strength and resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion under harsh conditions.
At Daxun Alloys, we specialize in manufacturing stainless steel Alloy 2205 tubing in diverse forms and sizes, including seamless, welded, precision, and capillary tubing. Each product meets stringent industrial standards set by ASTM, ASME, ISO, UNS, and EN, ensuring premium quality and reliability.
Daxun Alloys is a trusted name in Duplex 2205 Stainless Steel Pipes. Located in China, we stock an extensive range of products, including Round, Square, Polished, Electro Polished, Square and Rectangular, and Cold Drawn Duplex 2205 Stainless Steel Pipes. Since our establishment in 1999, we have been manufacturing Duplex 2205 Seamless and Welded Pipes to the highest standards and are ISO 9001 certified. With a stock of over 25,000 tonnes, we are one of the largest stockists of ASTM A789 UNS S32205 Pipes in China. Our inventory includes a variety of specifications like SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS. Initially founded as a trader of 2205 Duplex Stainless Steel Pipes, we have grown to become a leading manufacturer and stockholder of Duplex 2205 Pipes, exporting products globally and particularly leading in markets in India and 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 |
Mechanical Properties of 2205/S32205/S31803Stainless Steel Pipe
| 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 |
2205/S32205/S31803 Stainless Steel Pipe: PHYSICAL PROPERTIES
| 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 |
Leading Stainless Steel Tube and Pipe Suppliers in China
GENERAL PROPERTIES
Duplex 2205 stainless steel pipe is a high-performance duplex ferritic-austenitic stainless steel, uniquely formulated with 22% chromium, 3% molybdenum, and 5-6% nickel. Recognized as the most commonly used duplex stainless steel grade, it boasts a yield strength that is twice that of conventional austenitic grades. Its superior properties include exceptional fatigue strength and outstanding resistance to stress corrosion cracking, crevice, pitting, and general corrosion, even in the most severe conditions.
APPLICATIONS
- Chemical Processing, Transport, and Storage - Suitable for pressure vessels, tanks, piping, and heat exchangers
- Oil and Gas Exploration and Processing Equipment - Ideal for piping, tubing, and heat exchangers
- Marine and Other High Chloride Environments - Ensures long-lasting durability
- Effluent Scrubbing Systems - Reliable performance in harsh conditions
- Pulp and Paper Industry - Essential for digesters, bleaching equipment, and stock-handling systems
- Cargo Tanks for Ships and Trucks - Ensures the safe transport of cargo
- Food Processing Equipment - Maintains hygiene and performance
- Biofuels Plants - Supports sustainable energy production
STANDARDS
- ASTM/ASME: A240 UNS S32205/S31803
- EURONORM: 1.4462 X2CrNiMoN 22.5.3
- AFNOR: Z3 CrNi 22.05 AZ
- DIN: W.Nr 1.4462
CORROSION RESISTANCE
- Duplex 2205, with its high chromium, molybdenum, and nitrogen content, excels in corrosion resistance, surpassing 316 and 316L in most environments.
- The alloy's unique composition also provides exceptional resistance to pitting and crevice corrosion, even in oxidizing and acidic environments.
- It is also resistant to chloride stress corrosion cracking and can withstand temperatures up to approximately 302°F (150°C).
- The presence of ferrite enhances its performance in caustic environments.
HEAT RESISTANCE
- Like other duplex stainless steels, Duplex 2205 offers excellent oxidation resistance at high temperatures.
- However, it is prone to embrittlement at temperatures above 572°F (300°C), limiting its use in such conditions.
WELDING CHARACTERISTICS
- Duplex 2205 demonstrates good weldability.
- However, it should not generally be welded without filler metal, as this can lead to excessive ferrite formation.
HEAT TREATMENT
- The recommended annealing temperature range is between 1868 to 2012°F (1020 to 1100°C).
- While it cannot be hardened by heat treatment, Duplex 2205 does exhibit work-hardening properties.
- Special considerations should be taken to account for its higher coefficient of thermal expansion to prevent warping and distortion.
PROCESSING - HOT FORMING
Most manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 and 1150°C). Be cautious if the workpiece edges are cooler than the bulk, as this can lead to cracking.
PROCESSING - COLD FORMING
Duplex 2205 Stainless Steel Tube showcases exceptional formability across various manufacturing processes. However, its high strength can pose challenges. Even with powerful equipment, the springback effect due to the grade's high strength must be meticulously managed.
MACHINABILITY
Duplex 2205 proves slightly more challenging to machine compared to the 300 series austenitic stainless steels. Increased cutting forces are necessary, leading to quicker tool wear. Follow these machining guidelines for optimal results: A) Utilize a robust, rigid machine with strong tool and workpiece mounts; B) Minimize tool extensions to reduce vibration; C) Ensure the tool nose radius is only as long as needed for a sharp yet strong carbide edge; D) Plan the machining sequence to consistently cut below the work-hardened layer from prior operations.
2205/31803/S32205 grade stainless steel pipe
Diverse range of dimensions and precision cutting
- No matter your requirements, Daxun Alloys offers the perfect stainless steel tube. We provide lengths of 3m and 6m, with diameters ranging from 3mm to 2000mm (Grade 2205) and ¾" to 20" (Grade S31803).
- If specific lengths are needed, our complimentary precision cutting service is at your disposal. Utilizing state-of-the-art bandsaws, we can cut tubes to your exact specifications. Simply inform us when placing your order. This precision is another reason why we are a premier stainless steel tube supplier to both domestic and international clients.
Q1: What products can you offer?
A: We offer a variety of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, and 300 series.
Additionally, we provide 400 series stainless steels and duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products tailored to your drawings to ensure optimal satisfaction.
Q3. How does your factory address quality control?
Quality is our top priority. We maintain stringent quality control measures from the beginning of production to the end.
Q4. Can I request changes to the form of packaging and transportation?
Yes, we can modify packaging and transportation methods as per your request,
but please note that any additional costs incurred during this period will be your responsibility.
Q5. How does your factory address quality control?
Quality is our top priority. We uphold rigorous quality control standards from start to finish.
Q6. How long is the delivery time?
A: Delivery time ranges from 7 to 20 working days after payment confirmation.
For urgent orders, we will expedite production to meet your timeline.
Q7. What are your payment terms?
A: 100% T/T advance, Western Union (for small orders)
B: 30% T/T in advance and the remaining 70% before shipment
C: 100% Irrevocable LC at sight (for large orders)
Q8: Can you provide DDQ (Deep Drawing Quality)?
A: Yes, we can. Our materials are suitable for making stainless steel pots, sinks, bowls, etc. Share your specific usage requirements, and we will adjust the mechanical properties accordingly.
Q9: How to get a sample?
A: FREE samples are available for your evaluation and testing. If you require a small piece, we can cover the courier cost, depending on the circumstances.
Q10: Which countries have you exported to?
A: To date, we have exported our premium stainless steel materials to the following countries: Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, among others.
Q11: How can I visit your company?
A: Simply fly to Guangzhou Baiyun International Airport, and we will arrange to pick you up from there.
Address:
B108, No. 32-1, Chengnan Road, Xinwu District, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI, BRC, SA 8000, QHSE, HACCP, ISO 13485, EICC, ANSI/ESD, SEDEX, ISO 22000, AIB, WRAP, GAP, ASME, ISO 29001, HQE, IFS
Company Introduction:
Founded in 2003, Daxun Alloy is a leading global metal material manufacturer. Headquartered in Wuxi, China, the company has multiple production bases and sales offices around the world. Daxun Alloy focuses on the development, production and sales of various stainless steels, titanium alloys, high-temperature alloys, etc. For general industry, construction, aerospace, energy, chemical industry, medical and other fields.
China, Daxun Metal Group is a global vertically integrated metal material manufacturer and stockist. Daxun can provide finished products and customized full-process services and professional technical services. Currently, the group has 600 employees and covers a total area of 130, 000 square meters. Daxun has a standing inventory of 50, 000 tons of stainless steel, 5, 000 tons of nickel-based alloys, and 2, 000 tons of pure titanium and titanium alloys. The main product forms are metal plates, metal coils, metal pipes, and metal bars. The metal materials produced by Daxun are market leaders for marine, energy, military, general industrial and aerospace applications. In addition, the company also produces seamless pipes, plates, forgings and other metal materials for power generation and oil and gas applications; Commercial and military alloy products; And metal alloys and other metal products for the forging industry.
