| 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 |
Leading Global Expertise in Stainless Coil Sheet Fabrication Services
Daxun meticulously crafts stainless steel coils, specifically Alloy 2205, in an array of forms and dimensions. Adhering to rigorous industry standards such as ASTM, ASME, ISO, UNS, and EN, our Alloy 2205 stands as a superior duplex (austenitic/ferritic) stainless steel, providing enhanced performance and exceptional corrosion resistance, outshining 304 and 316 stainless steels. The alloy's unique dispersed austenitic/ferritic microstructure, combined with specialized alloying elements, offers formidable resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 exhibits commendable oxidation resistance up to 980°C, although it should be noted that extended exposure to temperatures between 300°C and 1000°C may induce brittleness. Versatile and robust, Type 2205 stainless steel strip, coil, and sheet cater to a broad spectrum of applications.
At Daxun Stainless Steel, we ensure complete traceability of each stainless steel coil through our advanced ERP system, detailing type, specification, and origin. We champion industry anti-counterfeiting measures. Leveraging cutting-edge technology for processing and customization, our high precision and exceptional quality set the industry benchmark. Our comprehensive service model emphasizes product life cycle management, offering expert material selection and processing solutions before purchase, stringent quality control during sales, and reliable service guarantees post-purchase.
Uncompromising Quality, Timely Delivery, Rigorous Inspection
- Daxun employs a series of stringent quality assurance tests to guarantee material suitability for specific applications. These tests include flattening, pitting, resistance, mechanical, hardness, material positive identification, and expansion tests. Each test is designed to ensure that our materials meet the highest standards of quality and performance.
- Throughout production, we meticulously measure product diameter, thickness, and surface quality. Our standard delivery timeframe is 7-15 days, though special size products may require up to 20 days. Be assured, we adhere strictly to our commitment to delivery schedules.
We honor our commitment to delivery times as stipulated in contractual agreements.
- We welcome and support customer-appointed third-party inspections at our factory.
- We offer complimentary samples to customers for testing purposes.
- We facilitate both on-site and video factory inspections for our customers.
Comprehensive Ordering Information
Purchase orders should detail quantity, grade, type or category, API5L reference, thickness, width, length, and any relevant attachments or additional requirements, including chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Reach out to Daxun today, and we promise a prompt email response to your inquiries.
Daxun's stainless steel journey began in 2003. Over the course of two decades, our stainless steel materials and processing business have consistently led the industry in China, setting benchmarks for quality and innovation.
For over 20 years, Daxun has been a global player. In 2022, our export revenue soared past US$100 million, cementing our status among China's top stainless steel trade and processing companies. Our extensive export service network, featuring three bases in China, collaborates closely with engineering firms, steel mills, and international trading entities to deliver unparalleled service and expand our global footprint.
Daxun International offers comprehensive stainless steel chain supermarket services, partnering with renowned steel mills worldwide. We maintain a robust inventory of 60,000 tons of standard stainless steel and 20,000 tons of specialty metals including duplex steel, nickel-based alloys, and heat-resistant steel. Our commitment to quality ensures that all materials adhere strictly to industry standards, providing reliability and authenticity.
Equipped with advanced steel processing machinery and a state-of-the-art physical and chemical testing center, Daxun excels in various processing techniques such as cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, ensuring precision and excellence.
Our services span over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. By collaborating with steel mills, research institutes, and other key stakeholders, we offer full-spectrum support 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 remarkable two-phase, ferritic-austenitic stainless steel, expertly alloyed with 22% chromium, 3% molybdenum, and 5-6% nickel. It stands as the premier choice among duplex stainless steel grades, boasting a yield strength twice that of conventional austenitic varieties. This alloy is renowned for its outstanding fatigue strength and unparalleled resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion, even in the most demanding 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
- Exceptional performance in marine and other high chloride environments
- Effluent scrubbing systems - highly resistant
- Pulp and paper industry - optimal for digesters, bleaching equipment, and stock-handling systems
- Cargo tanks for ships and trucks - reliable and durable
- Food processing equipment - ensuring safety and hygiene
- Biofuels plants - efficiency and robustness
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 high chromium, molybdenum, and nitrogen content, Duplex 2205 offers superior corrosion resistance compared to 316 and 316L in nearly all environments.
- The alloy's composition ensures high resistance to pitting and crevice corrosion, even in aggressive, oxidizing, and acidic solutions.
- Effectively resists 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 exhibits commendable oxidation resistance at elevated temperatures.
- However, it is prone to embrittlement at temperatures above 572°F (300°C), even for short durations, making it unsuitable for use beyond this temperature threshold.
WELDING CHARACTERISTICS
- Duplex 2205 exhibits excellent weldability.
- Generally, avoid welding without filler metal to prevent excessive ferrite formation.
HEAT TREATMENT
- The recommended annealing temperature range is between 1868 to 2012°F (1020 to 1100°C).
- It cannot be hardened through heat treatment, though Duplex 2205 does work-harden.
- Special care is required to account for its higher coefficient of thermal expansion to minimize warping and distortion.
PROCESSING - HOT FORMING
- Most producers of Duplex 2205 advise a maximum hot forming temperature of 2010 to 2100°F (1100 to 1150°C). If the workpiece is not compact, the edges may cool significantly compared to the bulk, risking cracking in the cooler zones.
PROCESSING - COLD FORMING
- Duplex 2205 exhibits remarkable formability across a myriad of fabrication processes. However, its high strength can present certain challenges. Even with adequate equipment power, one must account for the increased spring-back resulting from this grade's superior strength.
MACHINABILITY
Duplex 2205 is slightly more challenging to machine compared to the 300 series austenitic stainless steels. It demands higher cutting forces, leading to accelerated tool wear. Here are some machining guidelines: A) Utilize powerful, sturdy machines with exceptionally strong and rigid mounting of tools and workpieces, B) Minimize vibration by keeping the tool extension as short as possible, C) Employ a nose radius on the tool, only as long as necessary, for carbides with a sharp edge that still provide adequate strength, and D) Design machining sequences to ensure a cutting depth below the work-hardened layer from previous passes.
Features of 2205 Stainless Steel Coils
- Type 2205 is a duplex (austenitic/ferritic) stainless steel alloyed with chromium, molybdenum, and nitrogen. This composition enhances performance and corrosion resistance compared to 304 and 316 stainless steel. The alloy's austenite/ferrite microstructure, in combination with its alloying elements, provides resilience against stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 is resistant to oxidation up to 980°C, though it can become brittle when exposed to temperatures between 300°C and 1000°C for extended periods. Type 2205 stainless steel strip, coil, and sheet are versatile, finding applications across many industries.
What are the commonly used surfaces of stainless steel coils?
The surface finish of a 201 stainless steel coil varies based on the cold rolling processing 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 finishes:
- NO.1: This finish is obtained after hot rolling, heat treatment, and pickling of the stainless steel strip. The process removes the black oxide scale formed during hot rolling and heat treatment, resulting in a silvery white, matte surface. It is primarily used in industries that require heat and corrosion resistance without high surface gloss, such as the alcohol industry, chemical industry, and large containers.
- 2B: The 2B surface, smoothed by a light roller, is brighter than the 2D surface. It features a surface roughness Ra value ranging from 0.1 to 0.5μm, making it adaptable for various applications. This finish is suitable for industries like chemicals, papermaking, petroleum, medical sectors, and building curtain walls.
- TR Hard Surface: TR stainless steel, also known as hard steel, includes grades like 304 and 301. This finish is used for high-strength, high-hardness applications 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 the steel plates through cold rolling. The TR hard surface results from gently rolling hard materials by a few percent to tens of percent without subsequent annealing, maintaining the cold rolling process finish.
- Re-rolled Bright 2H: Following the meticulous rolling operation, the stainless steel strip undergoes a bright annealing process. Utilizing a continuous annealing line, the strip is rapidly cooled as it traverses the line at speeds of 60-80m/min. This procedure ensures a 2H re-rolled bright surface finish, exuding brilliance and resilience.
- No. 4: The No. 4 surface, known for its superior polishing effect, shines brighter than No. 3. Achieved by polishing cold-rolled stainless steel with a 2D or 2B finish, followed by sanding with a 150-180# grit belt, the surface roughness (Ra) ranges between 0.2 and 1.5μm. This finish is ideal for various applications including restaurant and cooking equipment, medical devices, architectural decor, and containers.
- HL: The HL surface, or hairline finish, is defined by the Japanese JIS standard as a continuous abrasive surface polished with a 150-240# grit belt. The Chinese GB3280 standard, however, lacks clarity on its restrictions. This elegant finish is frequently chosen for architectural decorations such as elevators, escalators, and exterior walls.
- No. 6: The No. 6 surface surpasses No. 4 with additional polishing using a Tampico brush or a W63 grit abrasive as per GB2477 standard. It boasts a metallic luster, softness, subtle reflection, and no imaging, making it perfect for curtain walls, tassel decorations, and culinary supplies.
- BA: The BA surface is characterized by bright heat treatment post-cold rolling, performed in a protective atmosphere to prevent oxidation. Polished with a high-precision roller, it achieves a surface roughness of 0.05-0.1μm, nearing mirror finish. This versatile surface is ideal for food utensils, household appliances, medical equipment, automotive parts, and decorative applications.
- No. 8: Known for its mirror-like finish and maximum reflectivity, the No. 8 surface, or 8K board in deep processing industries, uses BA material for mirror processing. This polished surface is stunningly beautiful, often utilized in building entrances and interior decor.
Q1: What products can you offer?
A: We provide a broad array of steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, 300 series, and various duplex stainless steels like 2205, 2304, 2101, 2507, among others. Additionally, we supply 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 precisely following your drawings, ensuring they meet your utmost satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We strictly adhere to rigorous quality controls from start to finish to ensure excellence.
Q4. Can I request to change the form of packaging and transportation?
Absolutely, we can modify the packaging and transportation methods to suit your preferences,
though you will be responsible for any additional costs incurred during this process.
Q5. How does your factory do regarding quality control?
Quality is our utmost priority. We meticulously oversee our quality control process from inception to completion, ensuring the highest standards are consistently met.
Q6. How long is the delivery time?
A: Our delivery timeframe is typically 7 to 20 working days after payment confirmation.
For urgent orders, we expedite the process to ensure prompt completion in our workshop.
Q7. What is your Payment?
A: 100% T/T advance, Western Union (For Small Orders)
B: 30% T/T upfront and the remaining 70% balance before shipment
C: 100% Irrevocable LC at sight (For Large Orders)
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Yes, we can. Our material is suitable for stainless steel pots, sinks, bowls, and more. Share your specific usage with us, and we'll tailor the mechanical properties to meet your requirements.
Q9: How to get a sample?
A: FREE samples are available for your evaluation and testing. For small pieces, we may cover the courier cost, depending on the circumstances.
Q10: Which countries have you exported to?
A: To date, we have exported our stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and beyond.
Q11: How can I visit your company?
A: Fly into Guangzhou Baiyun International Airport, and we will arrange to pick you up.
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