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 |
Stainless Steel Welded TubesOur premium stainless steel tubular products, meticulously crafted from stainless steel strips, undergo a sophisticated roll-forming and fusion-welding process along the longitudinal seam. At Jiangsu Daxun Alloy Co., Ltd., our welding process stands out, utilizing no filler metal to achieve flawless seams.
Quick Response
- Unmatched resistance to stress corrosion cracking, fatigue, and erosion
- Enhanced thermal conductivity and reduced thermal expansion compared to austenitic steels
- Superior and consistent resistance to pitting and crevice corrosion
- Remarkable resistance to sulfide stress corrosion cracking
- Operable up to 600°F
- Exceptional yield strength
- Outstanding fatigue strength
- Superb corrosion resistance
Stainless Steel Drawn TubeOur stainless steel tubes undergo a meticulous rolling and re-drawing process to reach their final dimensions, making them perfect for thick-walled, large-diameter applications. This method offers significant cost advantages over seamless tubes, and all drawn tubes are bright annealed for excellent quality and performance.
Distinctive Daxun Advantages
CORROSION RESISTANCE Alloy 2205 exhibits outstanding resistance to chloride-induced pitting and stress corrosion cracking, making it a superior choice for demanding environments.
ELEVATED TEMPERATURE RESISTANCE The ASME Boiler and Pressure Vessel Code specifies an upper-temperature limit of 600°F (315°C) for Alloy 2205. Prolonged exposure above this limit may result in embrittlement.
MECHANICAL PROPERTIES Alloy 2205 boasts more than double the strength of conventional austenitic stainless steels in the annealed condition. Additionally, it can be supplied in the cold-worked state with a yield strength surpassing 160 ksi. It retains excellent toughness at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 is highly amenable to cold forming. Due to its high work-hardening rate, intermediate annealing may be necessary. Post forming, both hot and cold, annealing is recommended to attain optimal stress corrosion resistance.
Stainless Steel Seamless TubeOur stainless steel seamless tubes are manufactured from hollow sections produced through advanced piercing or hot extrusion techniques. These tubes are ideal for applications requiring large diameter-to-wall thickness ratios and precise external dimensional tolerances.
Quality, Delivery, Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we are unwavering in our commitment to excellence, conducting rigorous quality assurance tests including the flattening test, pitting and resistance test, mechanical test, hardness test, material positive identification, and expansion test. Each test is meticulously executed to ensure our materials meet your exacting standards.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface quality of our products. Our standard delivery timeline ranges from 7 to 15 days, with special-sized products potentially extending up to 20 days, ensuring every specification is met to your satisfaction.
We strictly adhere to our contractual delivery timelines, ensuring punctual and reliable service. - We welcome and facilitate inspections by customer-authorized third-party agencies at our factory, ensuring transparency and trust.
- We provide free samples for rigorous testing, allowing you to firsthand experience our superior quality.
- We offer on-site or video factory inspection options, fostering transparency and trust in our manufacturing processes.
Discover the unmatched capabilities of Daxun in stainless steel pipe manufacturing.
Our forming capabilities are unparalleled, leveraging cutting-edge extrusion and cold working technology for superior tube and pipe manufacture. We are proud to operate one of the world's largest pilger mills, complemented by our unique hydroforming process that ensures precision fittings of the highest quality.
Discover the extraordinary pipe processing prowess of Daxun.
As a vertically integrated manufacturer, Daxun is your comprehensive one-stop solution. 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 other specialized services.
Daxun: Your ultimate destination for Bigger, Better Pipe Solutions.
Equipped with vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun leads the industry in comprehensive pipe extrusion capabilities. This enables us to manufacture pipes of the longest lengths and largest diameters available.
Daxun is a proud supplier to the power generation market, offering essential components such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our products are precisely engineered for applications in nuclear, coal-fired, renewable energy, and combined cycle power generation.
Jiangsu Daxun Alloy Co., Ltd. is a Global Leader in Stainless Steel Tube Fabrication Services
We are proud suppliers of ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe. Alloy 2205 is a high-performance duplex stainless steel, enhanced with nitrogen for superior corrosion resistance, especially in welding applications. In its annealed state, Alloy 2205 boasts more than twice the strength of conventional austenitic stainless steels and surpasses Alloy 316 in corrosion resistance across many environments. As the most widely used duplex stainless steel, Alloy 2205, also known as UNS N31803 and 22-Chromium, features a composition of 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned for its exceptional fatigue strength, Duplex 2205 excels in resisting stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion even in the most challenging settings.
At Daxun Alloys, our expertise in producing stainless steel alloy 2205 tubing spans various forms and sizes, including seamless, welded, precision, and capillary tubing. Each product strictly adheres to industry standards like ASTM, ASME, ISO, UNS, and EN, ensuring top-notch quality and reliability.
As a trusted supplier, Dah Hsun Alloys offers an extensive range of Duplex 2205 Stainless Steel Pipes. Our reputation as a leading stockist in China is built on our comprehensive inventory, featuring Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, and Cold Drawn Stainless Steel Pipes. Since 1999, we have been a prominent Duplex 2205 Seamless and Welded Pipe Manufacturer, proudly holding ISO 9001 certification. With over 25,000 tonnes of ASTM A789 UNS S31803 Pipe in stock, we are one of China's largest duplex stainless steel pipe stockists. Initially known as a 2205 Duplex Stainless Steel Pipe Trader, we evolved into a leading stocking distributor and now hold the status of a premier manufacturer in China. We commenced stocking ASTM A790 UNS S31803 Duplex Steel Pipe from international manufacturers across the US and Europe and today, we are the top stockholder of Duplex S 2205 Seamless Pipes in India and China. As the exclusive provider of Duplex 2205 Pipes in various specifications, including SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS, we offer 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 |
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. Comprising 22% chromium, 3% molybdenum, and 5-6% nickel, it stands as the most widely-used grade of duplex stainless steel. Its yield strength is double that of regular austenitic grades, providing unparalleled fatigue strength. Additionally, it exhibits exceptional resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even under the harshest conditions.
Applications
- Chemical processing, transport, and storage - including pressure vessels, tanks, piping, and heat exchangers
- Oil and gas exploration and processing equipment - such as piping, tubing, and heat exchangers
- Marine and other environments with high chloride content
- Effluent scrubbing systems
- Pulp and paper industry - encompassing digesters, bleaching equipment, and stock-handling systems
- Cargo tanks for ships and trucks
- Food processing equipment
- Biofuels plants
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
- With its elevated chromium, molybdenum, and nitrogen content, Duplex 2205 offers superior corrosion resistance compared to 316 and 316L in most environments.
- The mix of chromium, molybdenum, and nitrogen ensures high resistance to pitting and crevice corrosion, even in oxidizing and acidic conditions.
- Resistant to chloride stress corrosion cracking and capable of withstanding temperatures up to approximately 302°F (150°C).
- The ferritic nature of Duplex 2205 allows it to perform admirably in caustic environments.
Heat Resistance
- Like other duplex stainless steels, Duplex 2205 exhibits good oxidation resistance at elevated temperatures.
- However, exposure to temperatures above 572°F (300°C) can cause embrittlement, even for short periods; hence, Duplex 2205 is not recommended for use above this temperature.
Welding Characteristics
- Duplex 2205 possesses commendable weldability.
- Generally, welding without filler metal should be avoided to prevent excessive ferrite formation.
Heat Treatment
- The annealing temperature range for Duplex 2205 is 1868 to 2012°F (1020 to 1100°C).
- Duplex 2205 cannot be hardened by heat treatment, though it can be work-hardened.
- Special precautions must be taken to compensate for its higher coefficient of thermal expansion to avoid warping and distortion.
Processing - Hot Forming
Manufacturers generally recommend a maximum hot forming temperature of 2010 to 2100°F (1100 to 1150°C). If the workpiece isn't uniformly heated, cooler areas can be prone to cracking.
Processing - Cold Forming
The Duplex 2205 Stainless Steel Tube boasts excellent formability across diverse manufacturing processes. While its exceptional strength is advantageous, it can present challenges. Even with robust equipment, the increased springback due to the high strength of this grade must be factored in to ensure optimal performance.
MACHINABILITY
Duplex 2205 is marginally more challenging to machine compared to the 300 series austenitic stainless steels. It demands higher cutting forces, leading to quicker tool wear. To optimize machining: A) Employ a powerful, rigid machine with durable tool and workpiece mounts; B) Minimize tool extensions to reduce vibration; C) Maintain the tool nose radius as short as necessary to achieve a sharp carbide edge with sufficient strength; D) Plan the machining sequence to ensure each cut penetrates beneath the work-hardened layer from the previous operation.
2205/31803/S32205 Grade Stainless Steel Pipe
Extensive Range of Dimensions and Free Cutting Service
- No matter your requirements, Daxun Alloys offers the ideal stainless steel tube for you. We provide lengths of 3m and 6m, with diameters ranging from 3mm to 2000mm (Grade 2205) and ¾" to 20″ (Grade S31803).
- If you need a custom length, we offer an unlimited free cutting service with every purchase. Leveraging state-of-the-art bandsaws, our precision cutting service can tailor the tube to your exact specifications. Simply inform us when placing your order. This is just one of the many reasons why we are a top stainless steel tube supplier to both domestic and international clients.
Q1: What products can you offer?
A: We provide a wide range of general steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L 300, and more.
Additionally, we supply 400 series and duplex stainless steel like 2205, 2304, 2101, 2507, as well as high-nickel alloys including 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products based on your drawings to ensure they meet your exact specifications and satisfaction.
Q3. How does your factory handle quality control?
Quality is our top priority. We consistently emphasize stringent quality control measures from the beginning to the end of the production process.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can modify the packaging and transportation methods according to your specific requests.
However, any additional costs incurred during this period, including price differences, will be your responsibility.
Q5. How does your factory handle quality control?
Quality is our top priority. We consistently emphasize stringent quality control measures from the beginning to the end of the production process.
Q6. How long is the delivery time?
A: Delivery time ranges from 7 to 20 working days after payment confirmation.
If your order is urgent, we will expedite the process to ensure timely completion.
Q7. What is your payment method?
A: 100% T/T in advance or Western Union for small orders.
B: 30% T/T upfront with the remaining 70% paid before shipment.
C: 100% Irrevocable LC at sight for large orders.
Q8: Can you provide Deep Drawing Quality (DDQ) material?
A: Yes, we can. Our materials are suitable for manufacturing stainless steel pots, sinks, bowls, and more. Specify your application, and we'll adjust the mechanical properties to meet your needs.
Q9: How can I obtain a sample?
A: Complimentary samples are available for your evaluation and testing. If you need just a small piece, we are happy to cover the courier cost, depending on the situation.
Q10: To which countries have you exported?
A: To date, we have successfully exported our premium stainless steel materials to an array of countries, including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, among others.
Q11: What is the best way to visit your company?
A: The most convenient way is to fly to Guangzhou Baiyun International Airport, where we will personally pick you up and ensure a comfortable journey to our company.
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.
