| 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 exceptional Duplex 2205 Stainless Steel Coils in diverse forms and sizes, adhering to standards by ASTM, ASME, ISO, UNS, and EN. Known for its superior performance, Type 2205 boasts a unique austenitic/ferritic microstructure, providing unparalleled resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. With oxidation resistance up to 980°C, it surpasses 304 and 316 stainless steels in performance. However, prolonged exposure between 300°C and 1000°C can lead to brittleness. Ideal for a myriad of applications, Type 2205 stainless steel strips, coils, and sheets are versatile and reliable for demanding environments.
Daxun Stainless Steel ensures complete traceability for each coil via its ERP system, detailing type, specification, and origin, and champions industry anti-counterfeiting. Leveraging advanced technology for high-precision customization, Daxun sets the industry benchmark for quality. We offer comprehensive product life cycle management, professional material selection, and processing solutions pre-sales, meticulous monitoring during sales, and unmatched service guarantees post-sales.
Quality, Delivery, Inspection
- Daxun conducts rigorous quality assurance tests including flattening, pitting resistance, mechanical, hardness, material identification, and expansion tests. These stringent tests ensure that our materials meet all required applications.
- Throughout production, we meticulously measure product diameter, thickness, and surface quality. Our standard delivery time ranges from 7-15 days, extending up to 20 days for special sizes, guaranteeing timely fulfillment as per contract.
Our delivery schedule strictly adheres to contractual agreements.
- Support for customer third-party inspections at our factory.
- Complimentary samples available for customer testing.
- Provision for on-site or video factory inspections.
Ordering Information
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, testing, manufacturing process, surface coating, or end finish. Contact Daxun now for a prompt response to your inquiry.
Founded in 2003, Daxun's stainless steel business has surged with impressive growth over the past two decades. Today, our stainless steel materials and processing services stand at the pinnacle of China's industry, showcasing unparalleled quality and innovation.
With over 20 years of expertise in the global market, Daxun's export revenue soared past US$100 million in 2022, positioning us among the elite in China's stainless steel trade and processing sectors. We operate three strategically located export service bases in China, partnering with leading engineering firms, steel mills, and international trading companies to cater to the global market. Our relentless pursuit of excellence drives us to continually enhance our service capabilities and expand our international footprint.
Daxun International offers a comprehensive stainless steel chain supermarket service, maintaining long-term collaborations with numerous renowned steel mills worldwide. Our inventory boasts 60,000 tons of standard stainless steel and 20,000 tons of specialized metals, including duplex steel, nickel-based alloys, and heat-resistant steel. We guarantee the authenticity and superior quality of our stainless steel materials, adhering strictly to industry standards in variety, specifications, and delivery weights.
Equipped with state-of-the-art steel processing machinery, a dedicated physical and chemical testing center, and advanced processing lines for cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, Daxun sets the benchmark in steel processing excellence.
Our services span over 30 industries, encompassing automobiles, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. Collaborating with premier steel mills and research institutes, we offer end-to-end solutions from project design and material development to processing and manufacturing process 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, a superior two-phase stainless steel, expertly blends ferritic and austenitic characteristics. Alloyed with a robust 22% chromium, 3% molybdenum, and 5-6% nickel, it stands as the most widely utilized duplex grade. The standout feature is its impressive yield strength, which is double that of standard austenitic grades. Duplex 2205 also excels in fatigue strength and offers unparalleled resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even under the most demanding conditions.
APPLICATIONS
- Ideal for chemical processing, transport, and storage, including pressure vessels, tanks, piping, and heat exchangers.
- Perfect for oil and gas exploration and processing equipment such as piping, tubing, and heat exchangers.
- Engineered to withstand marine and other high chloride environments.
- Essential for effluent scrubbing systems.
- Crucial in the pulp and paper industry for digesters, bleaching equipment, and stock-handling systems.
- Utilized in cargo tanks for both ships and trucks.
- Highly suitable for food processing equipment.
- Integral to 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
- The high chromium, molybdenum, and nitrogen content of Duplex 2205 provides it with exceptional corrosion resistance, outperforming 316 and 316L in most environments.
- Its composition also ensures high resistance to pitting and crevice corrosion, even in oxidizing and acidic solutions.
- Effectively resists chloride stress corrosion cracking and functions well at temperatures up to approximately 302°F (150°C).
- The presence of ferrite enhances Duplex 2205's performance in caustic environments.
HEAT RESISTANCE
- Duplex 2205, like other duplex stainless steels, maintains excellent oxidation resistance at elevated temperatures.
- However, it is prone to embrittlement at temperatures above 572°F (300°C), even for short durations. Therefore, it is not advisable for use above these temperatures.
WELDING CHARACTERISTICS
- Exhibits excellent weldability.
- Generally, welding without filler metal should be avoided to prevent excessive ferrite formation.
HEAT TREATMENT
- The recommended annealing temperature range is between 1868 to 2012°F (1020 to 1100°C).
- Duplex 2205 cannot be hardened by heat treatment but does exhibit work-hardening properties.
- Special attention is required to account for its higher coefficient of thermal expansion to prevent warping and distortion.
PROCESSING - HOT FORMING
- Most producers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). For non-compact shapes, care must be taken as edges may cool faster, risking cracking.
PROCESSING - COLD FORMING
- Duplex 2205 exhibits excellent formability across a variety of fabrications. The remarkable strength of Duplex 2205 may present challenges; even if the equipment possesses adequate power, it is essential to account for higher spring-back due to the grade's robust strength.
MACHINABILITY
Duplex 2205 is slightly more challenging to machine compared to the 300 series austenitic stainless steels. Increased cutting forces are necessary, leading to faster tool wear. Key machining guidelines include: A) Utilize powerful, rigid machines with exceptionally strong and stable tool and workpiece mounting, B) Minimize vibration by keeping tool extension minimal, C) Employ a nose radius on the tool that is just sufficient, using carbides with sharp edges while ensuring adequate strength, and D) Design machining processes to ensure a cut depth that penetrates the work-hardened layer from prior passes.
Features of 2205 Stainless Steel Coils
- Type 2205, a duplex (austenitic/ferritic) stainless steel, is enhanced with chromium, molybdenum, and nitrogen, offering superior performance and corrosion resistance compared to 304 and 316 stainless steel. Its mixed austenite/ferrite microstructure and alloying elements provide resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 has acceptable oxidation resistance up to 980°C for specific applications, but may become brittle if exposed to temperatures between 300°C and 1000°C for extended periods. This stainless steel is versatile, suitable for various applications including strips, coils, and sheets.
Commonly Used Surfaces of Stainless Steel Coils
The surface finish of 201 stainless steel coils varies based on cold rolling methods and subsequent surface treatment. Surface treatments include NO.1, 2B, 4, HL, 6, 8, BA, TR hard, heavy rolling bright 2H, polished bright, and others:
- NO.1: The NO.1 surface is achieved through hot rolling, heat treatment, and pickling of stainless steel strips, which removes black oxide scale formed during the processes. It is silvery white and matte, primarily used in heat-resistant and corrosion-resistant industries where high surface gloss is not required, such as the alcohol industry, chemical industry, and large containers.
- 2B: The 2B surface, unlike the 2D surface, is smoothed with a light roller, resulting in a brighter finish. The surface roughness Ra value typically ranges from 0.1 to 0.5μm, making it highly adaptable for various industries including chemical, papermaking, petroleum, medical, and building curtain walls.
- TR Hard Surface: TR stainless steel, also known as hard steel, encompasses grades like 304 and 301, used in applications requiring high strength and hardness, such as railway vehicles, conveyor belts, springs, and washers. The work hardening characteristics of austenitic stainless steel are utilized to enhance the strength and hardness of steel plates through cold working methods like rolling. The hard material undergoes gentle rolling without annealing post-process, thus the TR hard surface is the rolled finish after cold rolling.
- Re-Rolled Bright 2H: Upon the completion of the rolling operation, the stainless steel strip undergoes a bright annealing process. Utilizing a continuous annealing line, the strip is rapidly cooled as it progresses at a speed of 60-80 meters per minute. This meticulous process ensures the surface achieves a 2H re-rolled bright finish, epitomizing precision and quality.
- No. 4: The No. 4 surface is renowned for its superior polishing effect, offering a brilliance that surpasses No. 3. This finish is achieved by polishing a cold-rolled stainless steel plate with a 2D or 2B surface, followed by a meticulous sanding process using a belt with a particle size of 150-180#. The surface roughness (Ra) ranges between 0.2 and 1.5μm, making it a versatile choice for applications in restaurants, cooking equipment, medical devices, architectural decorations, containers, and more.
- HL: The HL surface, commonly known as a hairline finish, is defined under the Japanese JIS standard as a continuous abrasive surface created by polishing with a 150-240# abrasive belt. Despite unclear restrictions under the Chinese GB3280 standard, the HL finish remains a popular choice for architectural decorations, including elevators, escalators, and exterior wall applications.
- No. 6: Building upon the No. 4 finish, the No. 6 surface is further refined using a Tampico brush or a W63 grit abrasive material as specified in the GB2477 standard. This results in a surface with excellent metallic luster, a soft appearance, and minimal reflection, making it ideal for curtain walls, tassel decorations, and cooking supplies due to its outstanding performance.
- BA: The BA surface is achieved through a bright heat treatment process following cold rolling. This involves annealing in a protective atmosphere to prevent oxidation and maintain the gloss of the cold-rolled surface, followed by polishing with a high-precision smooth roller to enhance surface brightness. With a surface roughness of 0.05-0.1μm, the BA finish is near-mirror-like and is widely used in food utensils, household appliances, medical equipment, automotive parts, and decorative applications.
- No. 8: The No. 8 surface, known for its mirror-like finish and maximum reflectivity, is free of abrasive particles. Commonly referred to as the 8K board in the stainless steel deep processing industry, this finish utilizes BA material as a base for mirror processing. It requires only polishing to achieve a beautiful, reflective surface, making it a preferred choice for building entrances and interior decoration.
Q1: What products can you offer?
A: We offer a diverse selection of steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, and 316. Our range extends to the 300 and 400 series, as well as duplex stainless steels like 2205, 2304, 2101, 2507, and high-nickel alloys such as 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Absolutely, we can manufacture products precisely according to your drawings, ensuring they meet your highest satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our utmost priority. We place significant emphasis on maintaining rigorous quality control measures from the very beginning to the end of the production process.
Q4. Can I request to change the form of packaging and transportation?
Yes, we are flexible with packaging and transportation forms to accommodate your specific requests,
though you will be responsible for any additional costs and differences incurred during this period.
Q5. How does your factory manage quality control?
Quality is our utmost priority. We place paramount importance on stringent quality control throughout the entire production process, from inception to completion.
Q6. What is the estimated delivery time?
A: Delivery is typically 7 to 20 working days after payment confirmation.
For urgent orders, we expedite the production process to ensure timely completion.
Q7. What are your payment terms?
A: 100% T/T advance, Western Union (for small orders).
B: 30% T/T upfront, with the remaining 70% payable before shipment.
C: 100% Irrevocable LC at sight (for large orders).
Q8: Can you produce DDQ (Deep Drawing Quality) material?
A: Absolutely. Our material is suitable for stainless steel pots, sinks, bowls, etc. Provide us with your specific requirements, and we will adjust the mechanical properties accordingly.
Q9: How can I obtain a sample?
A: We offer FREE samples for your evaluation. 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 countries including Vietnam, Thailand, Turkey, Russia, Morocco, 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 arrange for your pick-up.
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