| 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 |
World-Class Experts in Stainless Coil Sheet Fabrication Services
Daxun is a premier manufacturer of stainless steel coils, specializing in Alloy 2205 across various forms and sizes. Our Alloy 2205 meets stringent standards set by ASTM, ASME, ISO, UNS, and EN. This duplex (austenitic/ferritic) stainless steel outperforms 304 and 316 in both performance and corrosion resistance. Its unique microstructure and alloying elements provide robust resistance against stress corrosion cracking, pitting, and ***-induced crevice corrosion. While offering excellent oxidation resistance up to 980°C, Alloy 2205 is ideal for specific applications due to its brittleness when exposed to 300°C to 1000°C for prolonged periods. Available in strips, coils, and sheets, Type 2205 is versatile for numerous applications.
At Daxun Stainless Steel, we ensure full traceability of each stainless steel coil via our ERP system, detailing type, specification, and origin, while championing industry anti-counterfeiting measures. Leveraging advanced technology for processing and customization, we set the industry standard for precision and quality. Our comprehensive service includes pre-sale material selection and processing solutions, strict sales monitoring, and post-sale service guarantees, ensuring top-tier product lifecycle management.
Excellence in Quality, Timely Delivery, Rigorous Inspection
- Daxun implements rigorous quality assurance tests including flattening, pitting resistance, mechanical, hardness, material positive identification, and expansion tests. These assessments ensure the material meets all application-specific requirements.
- Throughout production, we meticulously measure the diameter, thickness, and surface of our products. Our standard delivery time ranges from 7-15 days, extending to 20 days for special sizes.
Delivery timelines are adhered to with strict accordance to the contract.
- We welcome third-party agencies for factory inspections to ensure transparency and trust.
- Offering free samples for customer testing, ensuring confidence in our quality.
- Supporting both on-site and video factory inspections for customer satisfaction.
Comprehensive Ordering Information
To place an order, please include details such as quantity, grade, type or category, API5L reference, thickness, width, length, and any supplementary requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun today, and we will respond to your email promptly.
Daxun's journey in the stainless steel industry started in 2003. Over two decades of swift growth, we have emerged as a leader in China's stainless steel materials and processing sector.
Daxun has been a global player for over 20 years. By 2022, our export revenue soared past US$100 million, securing our place among the top stainless steel trade and processing giants in China. We have set up three export service bases across the country and collaborate with engineering firms, steel mills, and international trading companies to serve global markets. Our relentless pursuit of excellence has led to the establishment of robust service capabilities, three export bases, and strong partnerships with industry leaders to bolster our international presence.
Daxun International offers comprehensive stainless steel chain supermarket services, backed by enduring partnerships with top-tier steel mills worldwide. We maintain a substantial inventory, including 60,000 tons of standard stainless steel and 20,000 tons of specialized alloys like duplex steel, nickel-based alloys, and heat-resistant steel. Our stainless steel materials stand out for their reliability and authenticity, with varieties, specifications, and delivery weights that meticulously adhere to stringent standards.
Equipped with advanced steel processing machinery, a state-of-the-art physical and chemical testing center, and diverse processing lines for cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, Daxun ensures top-notch quality and precision in every product.
Our services span over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. Partnering with steel mills, research institutes, and other entities, we deliver integrated solutions from project design and material development to processing and manufacturing optimization.
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 premium two-phase, ferritic, austenitic stainless steel, expertly alloyed with 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned as the most widely utilized duplex stainless steel, it boasts a yield strength that is double that of conventional austenitic grades. This steel also excels with outstanding fatigue strength and superior resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion in extreme environments.
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 concentrations
- Effluent scrubbing systems
- Pulp and paper industry - for digesters, bleaching equipment, and stock-handling systems
- Cargo tanks for ships and trucks
- Food processing equipment
- Biofuel 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 showcases superior corrosion resistance compared to 316 and 316L in most environments.
- The presence of chromium, molybdenum, and nitrogen delivers high resistance to pitting and crevice corrosion, even in oxidizing and acidic environments.
- Exhibits excellent resistance to chloride stress corrosion cracking and can withstand temperatures up to approximately 302°F (150°C).
- Its ferrite content ensures commendable performance in caustic environments.
HEAT RESISTANCE
- Duplex 2205 mirrors other duplex stainless steels with good oxidation resistance at elevated temperatures.
- However, it is prone to embrittlement if exposed to temperatures above 572°F (300°C) for even short periods. Thus, its usage is not recommended beyond this temperature threshold.
WELDING CHARACTERISTICS
- Features commendable weldability.
- Generally, it should not be welded without filler metal to prevent excessive ferrite formation.
HEAT TREATMENT
- Optimal annealing temperature ranges from 1868 to 2012°F (1020 to 1100°C).
- Cannot be hardened through heat treatment, though it does exhibit work-hardening characteristics.
- Special care must be taken to accommodate its higher coefficient of thermal expansion to prevent warping and distortion.
PROCESSING - HOT FORMING
- Most producers recommend a maximum hot forming temperature range between 2010 and 2100°F (1100 to 1150°C). If the work piece shape isn't compact, the edges may cool significantly more than the bulk, potentially leading to cracking in these cooler regions.
PROCESSING - COLD FORMING
- Duplex 2205 exhibits exceptional formability across various fabrication processes. However, the material's high strength can present challenges. Even with adequately powerful equipment, one must account for the increased spring-back due to the grade's notable strength.
MACHINABILITY
Duplex 2205 presents a slightly greater challenge to process compared to the 300 series austenitic stainless steels. This is due to the higher cutting forces required, leading to quicker tool wear. Key machining guidelines include: A) Utilize robust, rigid machinery with extremely strong, secure mounting of tools and workpieces, B) Minimize vibration by keeping tool extensions as short as possible, C) Employ tools with a nose radius no larger than necessary and sharp edges for carbides while still ensuring adequate strength, and D) Plan machining sequences to ensure cuts always go below the work-hardened layer formed during previous passes.
Features of 2205 stainless steel coils
- Type 2205 is a duplex (austenitic/ferritic) stainless steel enriched with chromium, molybdenum, and nitrogen. This alloy boasts superior performance and corrosion resistance compared to 304 and 316 stainless steel. The alloy's mixed austenite/ferrite microstructure, coupled with its alloying elements, provides outstanding resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 offers acceptable oxidation resistance up to 980°C for specific applications, although it can become brittle if exposed to temperatures between 300°C and 1000°C for prolonged periods. Type 2205 stainless steel strip, coil, and sheet are versatile and can be employed in a wide array of applications.
What are the commonly used surfaces of stainless steel coils?
The surface finish of 201 stainless steel coil can vary significantly based on the cold rolling methods and subsequent surface treatments. These treatments include NO.1, 2B, 4, HL, 6, 8, BA, TR hard, heavy rolling bright 2H, polished bright, and other specialized finishes:
- NO.1: The NO.1 surface is achieved through hot rolling, heat treatment, and pickling of the stainless steel strip. This process removes the black oxide scale formed during hot rolling and heat treatment via pickling or similar methods. It is the primary surface treatment, resulting in a silvery white, matte finish. This surface is typically used in industries requiring heat and corrosion resistance without the need for high surface gloss, such as the alcohol and chemical industries, and large container manufacturing.
- 2B: In contrast to the 2D surface, the 2B surface is achieved by a light rolling process, resulting in a brighter finish. The equipment-measured surface roughness Ra value ranges from 0.1 to 0.5μm, which is a standard for most processing types. This versatile stainless steel strip surface is ideal for chemical, papermaking, petroleum, medical industries, and applications like building curtain walls.
- TR hard surface: TR stainless steel, also known as hard steel, includes grades like 304 and 301. These are used for products requiring high strength and hardness, such as railway vehicles, conveyor belts, springs, and washers. The work hardening properties of austenitic stainless steel are harnessed to enhance the strength and hardness of steel plates through cold working techniques like rolling. To achieve this, the hard material is lightly rolled by a few to several tens of percent, bypassing annealing post-rolling. Consequently, the TR hard surface is the rolled surface obtained after the cold rolling process.
- Re-rolled bright 2H: Following the rolling operation, the stainless steel strip undergoes a bright annealing process. Utilizing a continuous annealing line, the strip is rapidly cooled while traveling at speeds between 60-80m/min. This method results in a superior 2H re-rolled bright surface finish.
- No. 4: The No. 4 surface boasts an excellent polishing effect, presenting a higher brilliance compared to No. 3. Achieved by polishing a cold-rolled stainless steel plate with a 2D or 2B surface, it is further refined with a 150-180# grit sanding belt. The surface roughness (Ra) ranges between 0.2 and 1.5μm. This versatile finish is ideal for applications in restaurants, cooking equipment, medical apparatus, architectural decoration, containers, and more.
- HL: The HL surface, often referred to as a hairline finish, is defined by the Japanese JIS standard as a continuous hairline abrasive surface achieved with a 150-240# grit abrasive belt. While the Chinese GB3280 standard is less specific, the HL finish remains popular for architectural elements such as elevators, escalators, and exterior facades.
- No. 6: The No. 6 surface is further enhanced from the No. 4 finish using a Tampico brush or W63 grit abrasive, per the GB2477 standard. This finish offers a refined metallic luster, soft sheen, minimal reflection, and no imaging. Its excellent characteristics make it suitable for curtain walls, tassel decorations, and culinary tools.
- BA: The BA surface undergoes bright heat treatment post-cold rolling, ensuring a non-oxidized finish and maintaining the cold-rolled gloss. Following annealing in a protective atmosphere, the surface is polished with a high-precision roller, achieving a surface roughness of 0.05-0.1μm, akin to a mirror. This polished finish is perfect for food utensils, household appliances, medical devices, automotive parts, and decorative elements.
- No. 8: Known for its mirror-like surface with maximum reflectivity and no abrasive particles, the No. 8 finish is often termed 8K board in the stainless steel deep processing industry. Utilizing BA material, it requires minimal polishing to achieve a stunning mirror effect, making it ideal for building entrances and interior décor.
Q1: What products can you offer?
A: We offer a diverse range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, and the 300 series.
Additionally, we provide 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 tailored to your drawings, ensuring your utmost satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We maintain stringent quality control measures 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 specifications,
though you will be responsible for any additional costs and variances incurred during this period.
Q5. How does your factory do regarding quality control?
Quality is our utmost priority. From the outset to the final stages, we meticulously ensure that every aspect of production meets the highest standards.
Q6. How long is the delivery time?
A: The delivery time ranges from 7 to 20 working days after payment confirmation.
If the order is urgent, we prioritize it to expedite completion in our workshop.
Q7. What is your Payment?
A: For small orders, we accept 100% T/T advance or Western Union.
B: For standard orders, 30% T/T upfront and the remaining 70% before shipment.
C: For large orders, a 100% Irrevocable LC at sight is required.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely. Our material is tailored for stainless steel pots, sinks, bowls, and more. Provide us with your specific usage, and we will adjust the mechanical properties to meet your requirements.
Q9: How to get a sample?
A: We offer FREE samples for your evaluation. For small pieces, we can cover the courier costs, depending on the situation.
Q10: Which countries have you exported to?
A: To date, our stainless steel materials have been exported to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many more.
Q11: How to visit your company?
A: You can fly to Guangzhou Baiyun International Airport, and we will arrange to pick you up.
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