| 2205/S32205 Stainless Steel Coil Specification |
ASTM A240 / ASME SA240 |
| 2205/S32205 Stainless Steel Coil Manufacturing Process |
Hot Rolled (HR) / Cold Rolled (CR) |
| 2205/S32205 Stainless Steel Coil Grades |
201 / 304 / 304L/ 2205/S32205 / 309S / 420 / 316 / 316L / 316Ti / 317L / 321 / 321H / 347 / 347H / 904L etc. |
| UNS No. - UNS S2205/S32205, UNS S31008, UNS S31600, UNS S31603, UNS S31603, UNS S31600, UNS S31703, UNS S32100, UNS S34700, UNS S34709, UNS S8904 |
| EN No. 1.4845, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4550, 1.4551, 1.4539 |
| 2205/S32205 Stainless Steel Coil Thickness |
0.6 MM TO 16 MM THICKNESS |
| 2205/S32205 Stainless Steel Coil Width |
1250 MM / 1500 MM / 2000 MM / 04 Feet / 05 Feet and Custom Cut Width as Per Requirement |
| 2205/S32205 Stainless Steel Coil Length |
2400 MM / 2420 MM / 6000 MM / 08 Feet / 10 Feet / Coil Cut and Custom Cut Length as Per Requirement |
| 2205/S32205 Stainless Steel Coil Surface Finish |
2B, 2D, BA, MATT, MATT PVC, No.4, No.5, SB, HR, No.8, Mirror, Hairline, Brush, Textured, Oil base wet Polished, Both sides Polished available. |
| 2205/S32205 Stainless Steel Coil Coating |
PVC coating Normal / Laser, Film: 100 micrometer, Color: black/white. |
| 2205/S32205 Stainless Steel Coil Other Testing |
NACE MR0175, Ultrasoung TEST, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, etc. |
| 2205/S32205 Stainless Steel CoilValue Added Services |
Gas Cutting / CNC Plasma Cutting / Profiling / Rolling / Bending / Sheet Metal Fabrication / Drill / Punch / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| 2205/S32205 Stainless Steel Coil Packaging |
Loose / Carrate / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps |
| 2205/S32205 Stainless Steel Coil Shipment & Transportation |
By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
| 2205/S32205 Stainless Steel Coil Material Test Certificate |
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC |
| Manufacturer |
POSCO, Aperam, Jindal Stainless, DKC Korea, Thyssenkrup, Baosteel, TISCO,Arcelor Mittal, VDM,Nippon Metal, Qingshan,Delong. |
| Shipping Port |
Shanghai/Ningbo port/Tianjin/Qindao |
Global leader in stainless coil sheet fabrication services
Daxun manufactures premium Alloy 2205 stainless steel coils in a variety of forms and sizes. Our Alloy 2205 complies with numerous industry standards, including ASTM, ASME, ISO, UNS, and EN. Type 2205 is a high-performance duplex (austenitic/ferritic) stainless steel, offering superior corrosion resistance compared to 304 and 316 grades. The alloy's unique microstructure and alloying elements provide exceptional resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. It offers oxidation resistance up to 980°C, though it becomes brittle at temperatures between 300°C and 1000°C after prolonged exposure. Available in strip, coil, and sheet, Type 2205 stainless steel is suitable for a vast array of applications.
At Daxun Stainless Steel, we ensure complete traceability of each stainless steel coil through our advanced ERP system. This system tracks the type, specification, and origin of each coil, and we actively advocate for industry anti-counterfeiting measures. Our technological capabilities in processing and customization set industry benchmarks for precision and quality. We also offer comprehensive product life cycle management, providing expert material selection and processing solutions before sales, diligent monitoring during sales, and reliable after-sales service guarantees.
Quality, delivery, inspection
- Daxun conducts a series of stringent quality assurance tests to ensure material suitability for various applications. These tests include flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests, among others.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface quality of our products. Our standard delivery time is 7-15 days, with an extension to 20 days for special size products.
We adhere strictly to contract-specified delivery timelines.
- Support for customer third-party inspections at the factory
- We provide free samples to customers for testing purposes
- We support on-site or video inspections of our factory
Ordering Information
Your purchase orders should specify the quantity, grade, type or category, API5L reference, thickness, width, length, and any additional requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun now for a prompt response to your inquiries.
Daxun's stainless steel journey commenced in 2003. Over two decades of rapid growth has positioned its stainless steel materials and processing business at the vanguard of China's industry.
With over 20 years in the international market, Daxun's export revenues surpassed US$100 million in 2022, ranking it among China's leading stainless steel trade and processing enterprises. We've established three export service hubs in China and collaborated with engineering firms, steel mills, and global trading companies to serve international markets. Our commitment to service excellence drives us to continually enhance our capabilities and expand our footprint overseas.
Daxun International offers comprehensive stainless steel chain supermarket services, fostering long-term collaborations with numerous renowned steel mills worldwide. We maintain a robust inventory of 60,000 tons of regular stainless steel and 20,000 tons of specialty metals, including duplex steel, nickel-based alloys, and heat-resistant steel. Our stainless steel materials are guaranteed for their authenticity and superior quality, adhering strictly to all specified standards in variety, specifications, and delivery weights.
Daxun boasts advanced steel processing machinery, a state-of-the-art physical and chemical testing center, and a full suite of processing lines including cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
Our services span over 30 industries such as automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. Partnering with steel mills and research institutes, we deliver integrated solutions from project design and material development to process optimization in manufacturing.
22052205 Stainless Steel Coil: Chemical Composition
| 2205/S32205S31803 ASTM A240: |
|
| |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
N |
Fe |
| MIN |
- |
- |
- |
- |
- |
22 |
4.5 |
3 |
0.14 |
BAL |
| MAX |
0.03 |
2 |
0.03 |
0.02 |
1 |
23 |
6.5 |
3.5 |
0.2 |
- |
2205 Stainless Steel Coil: Mechanical Properties
| Typical Mechanical Properties |
| Condition |
Tensile Strength Min (UTS) |
0.2% YS Min |
Elongation% in 2" Min(50.8 mm) |
HardnessRockwell |
| Annealed |
120-150 ksi (825-1035 MPa) |
95-125 ksi (655-860 MPa) |
25% |
30 HRC |
2205 Stainless Steel Coil: Physical Properties
| Physical Properties |
| |
At 70°F |
At 20°C |
| Density |
0.284 lb./in³ |
7.86 g/cm³ |
| Modulus of Elasticity (E) |
29.0 x 10³ksi |
200 GPa |
| Coefficient of Expansion |
11.1 x 10microinches/in.-°F(70-2000°F) |
14.0 μm/m-°C (0-300°C) |
| Electrical Resistivity |
33.5 μ ohm.in |
85.1 μ ohm.cm |
| Thermal Conductivity |
104 Btu-in./ft.²hr.-°F |
15.0 W/m-K |
GENERAL PROPERTIES
Duplex 2205 is a remarkable two-phase, ferritic, austenitic stainless steel, enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. It stands as the preeminent duplex stainless steel grade, with a yield strength that is double that of standard austenitic grades. This alloy boasts exceptional fatigue strength and unparalleled resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even in the harshest environments.
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 and other high chloride environments
- Effluent scrubbing systems
- Pulp and paper industry - suitable 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 high chromium, molybdenum, and nitrogen content, Duplex 2205 exhibits superior corrosion resistance compared to 316 and 316L in most environments.
- The alloy's chromium, molybdenum, and nitrogen components also endow it with exceptional resistance to pitting and crevice corrosion, even in oxidizing and acidic solutions.
- It is resistant to chloride stress corrosion cracking up to temperatures of about 302°F (150°C).
- The ferrite phase in Duplex 2205 ensures excellent performance in caustic environments.
HEAT RESISTANCE
- Duplex 2205, like other duplex stainless steels, showcases commendable oxidation resistance at elevated temperatures.
- However, it is subject to embrittlement when exposed to temperatures above 572°F (300°C) for short durations and is not recommended for use above this temperature.
WELDING CHARACTERISTICS
- This alloy possesses excellent weldability.
- It is generally advisable to weld with filler metal to avoid excessive ferrite formation.
HEAT TREATMENT
- The annealing temperature range for Duplex 2205 is between 1868 and 2012°F (1020 to 1100°C).
- While it cannot be hardened by heat treatment, Duplex 2205 does work-harden.
- Special considerations are necessary to compensate for its higher coefficient of thermal expansion to prevent warping and distortion.
PROCESSING - HOT FORMING
- Most producers recommend a maximum hot forming temperature of 2010 to 2100°F (1100 to 1150°C). If the workpiece is not compact, cooler edges may risk cracking.
PROCESSING - COLD FORMING
- Duplex 2205 showcases good formability in various fabrications. Its high strength can pose challenges; even with adequate power, higher spring-back due to the grade's high strength must be considered.
MACHINABILITY
Duplex 2205 stainless steel presents a slight challenge in machining when compared to the 300 series austenitic stainless steels. The need for higher cutting forces leads to accelerated tool wear. The following machining guidelines can help optimize the process: A) Utilize powerful, rigid machines with exceptionally secure mounting of both tools and workpieces, B) Minimize vibration by keeping the tool extension to a bare minimum, C) Opt for a nose radius on the tool that balances sharpness and strength, particularly for carbides, and D) Design machining sequences to ensure the depth of cut consistently goes below the work-hardened layer from previous passes.
Features of 2205 Stainless Steel Coils
- Type 2205 is a duplex (austenitic/ferritic) stainless steel that incorporates chromium, molybdenum, and nitrogen. These elements enhance performance and corrosion resistance, offering substantial improvements over 304 and 316 stainless steel. The alloy's dual-phase microstructure, combined with these additives, provides exceptional resistance to stress corrosion cracking, pitting, and chloride-induced crevice corrosion. Alloy 2205 withstands oxidation up to 980°C for specified applications, although prolonged exposure to temperatures between 300°C and 1000°C may cause brittleness. This versatile alloy is available in strip, coil, and sheet forms, suitable for a wide range of applications.
Common Surface Finishes of Stainless Steel Coils
The surface finish of 201 stainless steel coils varies based on cold rolling processes and subsequent surface treatments. Available finishes include NO.1, 2B, 4, HL, 6, 8, BA, TR hard, heavy rolling bright 2H, polished bright, and other specialized treatments:
- NO.1: This surface is achieved through hot rolling followed by heat treatment and pickling. It removes black oxide scale formed during hot rolling and heat treatment, resulting in a silvery white matte finish. This surface is primarily used in industries where high surface gloss is not necessary, such as the alcohol, chemical, and large container industries.
- 2B: In contrast to the 2D surface, the 2B finish is obtained by light rolling, giving it a brighter appearance. The surface roughness Ra value typically ranges from 0.1 to 0.5μm. This versatile finish is ideal for chemical, papermaking, petroleum, medical industries, and even architectural applications like building curtain walls.
- TR Hard Surface: TR stainless steel, also known as hard steel, includes grades like 304 and 301. It is designed for high-strength and high-hardness applications such as railway vehicles, conveyor belts, springs, and washers. The work hardening characteristics of austenitic stainless steel are leveraged to enhance the strength and hardness through cold rolling. To achieve the desired flatness, the hard material is lightly rolled without subsequent annealing, resulting in the distinctive TR hard rolled surface.
- Re-Rolled Bright 2H: Post-rolling, the stainless steel strip undergoes bright annealing, often in a continuous annealing line that allows rapid cooling as the strip moves at 60-80m/min. This results in a bright 2H re-rolled surface finish.
- No. 4: The No. 4 surface offers an exceptional polishing effect, surpassing the brightness of the No. 3 finish. Achieved through polishing cold-rolled stainless steel plates with a 2D or 2B surface, followed by a sanding belt with a particle size of 150-180#, this method ensures a surface roughness (Ra) between 0.2 and 1.5μm. Widely utilized in diverse applications such as restaurants, cooking equipment, medical devices, architectural decoration, and containers, the No. 4 surface stands out for its versatility and superior quality.
- HL: The HL surface, or hairline finish, is meticulously described by the Japanese JIS standard as a continuous hairline abrasive surface obtained via a 150-240# abrasive belt. While the Chinese GB3280 standard lacks clarity, the HL finish is predominantly employed in architectural decoration, enhancing aesthetics in elevators, escalators, and exterior walls.
- No. 6: The No. 6 surface is an advanced finish achieved by further polishing the No. 4 surface using a Tampico brush or W63 grit abrasive material, as specified in the GB2477 standard. This process results in a surface with a splendid metallic luster, gentle reflection, and non-imaging properties, making it ideal for curtain walls, tassel decorations, and cooking tools.
- BA: BA, or Bright Annealed, is a surface finish achieved by heat treatment in a protective atmosphere post-cold rolling, ensuring oxidation-free, glossy results. Polished with high-precision smooth rollers, the BA surface achieves a remarkable surface roughness of 0.05-0.1μm, closely resembling a mirror. This finish is perfect for food utensils, household appliances, medical instruments, automotive parts, and decorative applications.
- No. 8: The No. 8 finish, or mirror surface, boasts maximum reflectivity devoid of abrasive particles. Commonly known in the stainless steel processing industry as 8K board, this finish typically uses BA material as raw input. With minimal polishing, the mirror surface emerges stunningly beautiful, frequently employed in building entrances and interior decor.
Q1: What products can you offer?
A: We offer a broad spectrum of steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L 300 series, 400 series, and duplex stainless steel such as 2205, 2304, 2101, 2507, etc., along with high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products as per your drawings, ensuring they meet your highest satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our priority. We maintain stringent quality control measures throughout the production process, from start to finish.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can modify the packaging and transportation methods according to your requests.
However, you will need to cover any additional costs and the differences incurred during this period.
Q5. How does your factory do regarding quality control?
Quality is our priority. We enforce strict quality control procedures from the beginning to the end of the production process.
Q6. How long is the delivery time?
A: The delivery time ranges from 7 to 20 working days after payment confirmation.
If your order is urgent, we will prioritize it to ensure our workshop completes it ahead of schedule.
Q7. What are your Payment Terms?
A: 100% T/T advance, or 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 produce DDQ (Deep Drawing Quality) materials?
A: Yes, we can. Our materials are suitable for making stainless steel pots, sinks, bowls, etc. Let us know your specific usage needs, and we will adjust the mechanical properties to meet your requirements.
Q9: How can I get a sample?
A: FREE samples are available for your evaluation and testing. If you need a small piece, we may cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: We have exported stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many more.
Q11: How can I visit your company?
A: Fly to Guangzhou Baiyun International Airport, and we will pick you up from there.
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