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 stainless steel tubular products, expertly crafted from premium stainless steel strips, are roll-formed and fusion-welded along the longitudinal seam. Daxun's state-of-the-art welding process stands out for its excellence, utilizing no filler metal whatsoever.
Quick Response
- Exceptional resistance to stress corrosion cracking, fatigue, and erosion
- Superior thermal conductivity and lower thermal expansion compared to austenitic steels
- Outstanding and consistent resistance to pitting and crevice corrosion
- Robust resistance to sulfide stress corrosion cracking
- Operational efficiency up to 600°F
- High yield strength for rigorous applications
- Excellent fatigue strength
- Superior corrosion resistance
Stainless Steel Drawn TubeOur stainless steel tubular products undergo meticulous rolling and re-drawing to achieve the desired final size, making them perfect for thick-walled, large-diameter tubes. This innovative process offers significant cost benefits over seamless tubes, and all drawn tubes are bright annealed to guarantee exceptional quality.
Daxun Advantages
CORROSION RESISTANCE Alloy 2205 offers remarkable 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 temperatures above this threshold may cause embrittlement.
MECHANICAL PROPERTIES Alloy 2205 exhibits more than double the strength of traditional austenitic stainless steels in the annealed state. It can also be provided in a cold-worked condition with yield strength surpassing 160 ksi, maintaining excellent toughness at temperatures as low as -50°F (-10°C).
WORKABILITY Alloy 2205 can be cold formed, but due to its high work-hardening rate, intermediate anneals may be necessary. Post-forming annealing is also recommended to achieve optimal stress corrosion resistance.
Stainless Steel Seamless TubeOur stainless steel seamless tubes are engineered from hollow sections created through piercing or hot extrusion processes. These tubes are ideal for large diameter-to-wall thickness ratios, offering precise external dimensional tolerances.
Quality, Delivery, Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we are steadfast in our commitment to excellence through comprehensive quality assurance tests. These include flattening tests, pitting resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests, ensuring our materials meet the highest standards for your demanding applications.
- Throughout the production process, we rigorously measure the diameter, thickness, and surface quality of our products. Our standard delivery timeline ranges from 7 to 15 days, with special-sized products extending up to 20 days to meet your exact specifications.
We strictly adhere to delivery timelines as specified in our contracts, ensuring reliable and punctual service. - We welcome inspections by customer-authorized third-party agencies at our factory, ensuring transparency and trust.
- We offer free samples for rigorous testing, allowing you to experience our high quality firsthand.
- We provide on-site or video factory inspection options, fostering transparency and trust in our manufacturing process.
Discover the unparalleled stainless steel pipe manufacturing capabilities of Daxun.
Our forming capabilities are unrivaled, 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.
Discover Daxun's unparalleled expertise in pipe processing, where precision meets innovation.
As a vertically integrated powerhouse, Jiangsu Daxun Alloy Co., Ltd. delivers a seamless one-stop-shop experience. From overseeing entire projects to executing specialized machining jobs, our diverse capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and more, ensuring top-notch quality at every step.
Daxun: Your ultimate destination for superior and robust pipe solutions.
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 empowers us to produce the longest lengths and largest diameter pipes, setting industry benchmarks for excellence.
Daxun takes pride in supplying the power generation sector with critical components, including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our offerings are meticulously crafted to meet the demands of nuclear, coal-fired, renewable energy, and combined cycle applications, ensuring peak performance and reliability.
Global leader in stainless steel tube fabrication services
ASTM A789 UNS S32205 Duplex Stainless Steel Seamless Pipe and 2205 (S31803) Duplex Stainless Steel Welded Pipe Suppliers Alloy 2205, a superior duplex stainless steel, is enriched with nitrogen to enhance its corrosion resistance, especially in welding applications. In its annealed state, Alloy 2205 offers more than double the strength of standard austenitic stainless steels and surpasses Alloy 316 in corrosion resistance across various environments. Recognized as the most widely utilized duplex stainless steel, Alloy 2205 is also known by designations such as UNS N31803 and 22-Chromium. This elite duplex ferritic stainless steel contains 22% chromium, 3% molybdenum, and 5-6% nickel, providing exceptional resistance to fatigue, 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 variants. Adhering to strict industrial standards set by organizations like ASTM, ASME, ISO, UNS, and EN, every product we offer embodies our commitment to quality and excellence.
Dah Hsun Alloys stands as a trusted supplier of Duplex 2205 Stainless Steel Pipes. As a renowned stockist, we offer an extensive inventory of Duplex 2205 Round Pipes, Square Pipes, Polished Pipes, Electro Polished Pipes, and Cold Drawn Stainless Steel Pipes at our China facility. Since 1999, we have been manufacturing high-quality Duplex 2205 Seamless and Welded Pipes, earning ISO 9001 certification. Our stock of Duplex 2205 Stainless Steel Pipes exceeds 25,000 tonnes, positioning us among the largest ASTM A789 UNS S32205 pipe stockists in China. Initially established as traders of 2205 Duplex Stainless Steel Pipes, we evolved into a leading manufacturer and stocking distributor. Today, we are recognized as the top Duplex 2205 Steel Pipe Manufacturer in China and a key stockholder of Duplex S 2205 Seamless Pipes in both India and China. Our comprehensive range includes SCH 40, SCH 80, SCH 160, SCH 10, SCH XS, and SCH XXS Duplex 2205 Pipes. Purchase premium 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 |
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 premium duplex ferritic-austenitic stainless steel enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned as the most frequently utilized duplex stainless steel grade, it boasts a yield strength that is double that of regular austenitic grades. This exceptional material offers outstanding fatigue strength and unparalleled resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion even under the most severe conditions.
APPLICATIONS
- Chemical Processing, Transport, and Storage: Ideal for pressure vessels, tanks, piping, and heat exchangers
- Oil and Gas Exploration and Processing Equipment: Perfect for piping, tubing, and heat exchangers
- Marine Environments: Highly suitable for high chloride conditions
- Effluent Scrubbing Systems
- Pulp and Paper Industry: Designed for 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
- Thanks to its elevated chromium, molybdenum, and nitrogen content, Duplex 2205 showcases superior corrosion resistance compared to 316 and 316L in most environments.
- The presence of chromium, molybdenum, and nitrogen also enhances resistance to pitting and crevice corrosion, even in harsh oxidizing and acidic solutions.
- Exhibits robust resistance to chloride stress corrosion cracking and withstands temperatures up to approximately 302°F (150°C).
- The ferrite content ensures excellent performance of Duplex 2205 in caustic environments.
HEAT RESISTANCE
- Similar to other duplex stainless steels, Duplex 2205 offers good oxidation resistance at high temperatures.
- However, it may become embrittled when exposed to temperatures above 572°F (300°C), even for short durations; hence, it is not recommended for usage above this temperature.
WELDING CHARACTERISTICS
- Features excellent weldability.
- Generally, welding without filler metal is not advisable as it may result in excessive ferrite formation.
HEAT TREATMENT
- The annealing temperature range is between 1868 to 2012°F (1020 to 1100°C).
- Cannot be hardened by heat treatment, though Duplex 2205 does undergo work hardening.
- Special precautions must be taken to account for the 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). It is crucial to ensure that the workpiece remains compact to avoid the risk of cracking in cooler areas.
PROCESSING - COLD FORMING
The Duplex 2205 Stainless Steel Tube stands out with its exceptional formability across various manufacturing processes. However, its high strength can pose challenges. Even with adequate equipment, the substantial springback inherent to Duplex 2205 must always be considered.
MACHINABILITY
Machining Duplex 2205 is a bit more demanding compared to 300 series austenitic stainless steels, requiring higher cutting forces which accelerate tool wear. Follow these machining guidelines for optimal results: A) Utilize a robust, rigid machine with exceptionally strong tool and workpiece mounts; B) Keep tool extensions minimal to reduce vibration; C) Limit the tool nose radius to maintain a sharp edge on the carbide, ensuring it is still strong enough; D) Plan the machining sequence so each cut's depth remains below the work-hardened layer from the prior operation.
2205/31803/S32205 Grade Stainless Steel Pipe
Extensive Range of Dimensions and Free Cutting Service
- No matter your requirements, Daxun Alloys has the ideal stainless steel tube for you. We offer lengths of 3m and 6m, with diameters ranging from 3mm to 2000mm (Grade 2205) and ¾" to 20" (Grade S31803).
- If you need a specific length, take advantage of our complimentary unlimited cutting service with every purchase. Our state-of-the-art bandsaws ensure precise cutting to your exact specifications. Just inform us when placing your order. This is one of the many reasons we are a top stainless steel tube supplier, serving both domestic and international markets.
Q1: What products can you offer?
A: We can offer a variety of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300, as well as
various 400 series steels. Additionally, we provide duplex stainless steels like 2205, 2304, 2101, 2507, etc., and high-nickel alloys such as 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 meet your specific requirements and satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our utmost priority. We place significant emphasis on quality control throughout every stage 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 as per your request.
However, any costs incurred during this period and the difference in expenses will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our utmost priority. We place significant emphasis on quality control throughout every stage of the production process.
Q6. How long is the delivery time?
A: Delivery time ranges from 7 to 20 working days post-payment confirmation.
For urgent orders, we can expedite the process in our workshop to meet your timeline.
Q7. What is your Payment?
A: 100% T/T in advance, or Western Union (for small orders)
B: 30% T/T upfront with the balance of 70% before shipment
C: 100% Irrevocable LC at sight (for large orders)
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Yes, we can. Our materials are suitable for applications such as stainless steel pots, sinks, and bowls. Inform us of your requirements, and we'll adjust the mechanical properties to meet your needs.
Q9: How can I obtain a sample?
A: We are pleased to offer FREE samples for your evaluation and testing. For small pieces, we can cover the courier cost, subject to conditions.
Q10: Which countries have you exported to?
A: To date, we have successfully exported our premium stainless steel materials to a diverse range of countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, the UAE, Ukraine, and many more.
Q11: How can I visit your company?
A: You can fly to Guangzhou Baiyun International Airport, and we will arrange for your pickup 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.
