| 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 |
Your Global Leader in Stainless Coil Sheet Fabrication Services
At Jiangsu Daxun Alloy Co., Ltd., we pride ourselves on manufacturing Duplex 2205 Stainless Steel Coils in a multitude of forms and sizes. Our Alloy 2205 adheres to stringent industry standards such as ASTM, ASME, ISO, UNS, and EN. This duplex (austenitic/ferritic) stainless steel boasts superior performance and corrosion resistance compared to 304 and 316 stainless steels. The unique austenitic/ferritic microstructure, reinforced with alloying additives, provides exceptional resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 can withstand oxidation up to 980°C but should be used judiciously, as it becomes brittle when exposed to temperatures between 300°C and 1000°C for prolonged periods. Our Type 2205 stainless steel strips, coils, and sheets are versatile and ideal for a broad spectrum of applications.
Daxun Stainless Steel ensures complete traceability of every stainless steel coil through our advanced ERP system, detailing type, specification, and origin. We champion anti-counterfeiting measures within the industry and leverage state-of-the-art technology for processing and customization. Our commitment to high precision and quality sets the industry standard. Our service approach encompasses product life cycle management, offering professional material selection and processing solutions pre-sale, vigilant monitoring during sales, and worry-free service guarantees post-sale.
Quality, Delivery, and Inspection
- Jiangsu Daxun Alloy Co., Ltd. conducts rigorous quality assurance tests including flattening, pitting resistance, mechanical strength, hardness, material identification, and expansion tests. These comprehensive tests ensure our materials meet the stringent requirements necessary for their intended applications.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface quality of our products. Our standard delivery timeframe ranges from 7-15 days, with certain special-sized products extending to 20 days.
Daxun adheres strictly to the contractually agreed delivery times.
- We welcome customer-appointed third-party agencies for factory inspections.
- Complimentary samples are available for customer testing.
- We support both on-site and video factory inspections.
Ordering Information
When placing a purchase order, please specify the quantity, grade, type or category, API5L reference, thickness, width, length, and any additional requirements related to chemical composition, mechanical properties, heat treatment, extra testing, manufacturing process, surface coating, or end finish. Contact Daxun today, and we will respond to your inquiry promptly.
Since its inception in 2003, Jiangsu Daxun Alloy Co., Ltd. has rapidly ascended to the forefront of China's stainless steel industry. With two decades of relentless innovation and growth, Daxun has firmly established its leadership in stainless steel materials and processing.
For over 20 years, Daxun has excelled in international markets. In 2022, our export revenue surpassed $100 million, placing us among the elite stainless steel trade and processing companies in China. We have set up three dedicated export service bases across China, collaborating with engineering firms, steel mills, and global trading companies to enhance our international presence. Our commitment to service excellence drives us to continually refine our capabilities and extend our global reach.
Daxun International offers a comprehensive stainless steel chain supermarket service. We have forged long-term partnerships with numerous renowned steel mills worldwide, maintaining a stock 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 stainless steel materials are synonymous with reliability and authenticity, strictly adhering to rigorous standards in variety, specifications, and delivery weights.
Equipped with advanced steel processing machinery and a proficient physical and chemical testing center, Daxun boasts a suite of processing capabilities such as cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
Our services span over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. In collaboration with steel mills, research institutes, and other entities, we deliver integrated services 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, a versatile two-phase, ferritic-austenitic stainless steel, is enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. Widely recognized as the most prevalent duplex grade, it boasts a yield strength that doubles that of typical austenitic grades. Renowned for its exceptional fatigue strength, Duplex 2205 also delivers unparalleled resistance to stress corrosion cracking, crevice, 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 industry: Essential for exploration and processing equipment like piping, tubing, and heat exchangers
- Marine applications and high chloride environments
- Effluent scrubbing systems
- Pulp and paper industry: Perfect 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 substantial chromium, molybdenum, and nitrogen content, Duplex 2205 offers superior corrosion resistance compared to 316 and 316L in most settings
- The alloy's composition also ensures high resistance to pitting and crevice corrosion, even in oxidizing and acidic environments
- Withstands chloride stress corrosion cracking and temperatures up to approximately 302°F (150°C)
- The ferritic phase contributes to excellent performance in caustic environments
HEAT RESISTANCE
- Exhibits robust oxidation resistance at elevated temperatures, similar to other duplex stainless steels
- Prone to embrittlement at temperatures above 572°F (300°C) even for short exposures; thus, not recommended for use above this threshold
WELDING CHARACTERISTICS
- Features good weldability
- Generally should not be welded without filler metal as it may lead to excessive ferrite formation
HEAT TREATMENT
- Annealing temperature range: 1868 to 2012°F (1020 to 1100°C)
- Cannot be hardened by heat treatment, though it does work-harden
- Special considerations required to accommodate higher thermal expansion to prevent warping and distortion
PROCESSING - HOT FORMING
- Most manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). If the workpiece is not compact, cooler edges may *** due to significant temperature differences.
PROCESSING - COLD FORMING
- The Duplex 2205 stainless steel is recognized for its excellent formability across a spectrum of fabrications. Despite its notable high strength, which can present challenges, the equipment used must have adequate power and make allowances for increased spring-back due to the material's inherent strength.
MACHINABILITY
Working with Duplex 2205 is slightly more challenging than the 300 series austenitic stainless steels. The higher cutting forces required lead to faster tool wear. For best results, consider the following guidelines: A) Utilize powerful, rigid machines with robust tool and workpiece mounting, B) Minimize vibration by keeping tool extensions short, C) Employ a nose radius on the tool only as long as necessary to maintain a sharp edge for carbides while ensuring adequate strength, and D) Design machining sequences to achieve a depth of cut below the work-hardened layer from previous passes.
Key Features of 2205 Stainless Steel Coils
- Type 2205 is a duplex (austenitic/ferritic) stainless steel enhanced with chromium, molybdenum, and nitrogen, providing superior performance and corrosion resistance compared to 304 and 316 stainless steels. Its unique austenite/ferrite microstructure combined with these alloys offers robust resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 maintains oxidation resistance up to 980°C but is advised for specific applications to avoid brittleness from prolonged exposure to temperatures between 300°C and 1000°C. This type of stainless steel is versatile, available in strip, coil, and sheet formats for varied applications.
Common Surface Finishes for Stainless Steel Coils
The surface finish of a 201 stainless steel coil varies based on cold rolling techniques and subsequent surface treatments. Surface treatments include NO.1, 2B, 4, HL, 6, 8, BA, TR hard, heavy rolling bright 2H, polished bright, among others:
- NO.1: This surface is achieved through hot rolling, heat treatment, and pickling of stainless steel strips to remove black oxide scale formed during these processes. NO.1 surface stands out for its silvery white, matte finish and is highly suited for heat-resistant and corrosion-resistant applications where high surface gloss is not required, such as in the alcohol and chemical industries, and for large containers.
- 2B: The 2B surface, in contrast to the 2D, is further smoothed using a light roller, resulting in a brighter finish. The typical surface roughness Ra values range from 0.1 to 0.5μm. This adaptable surface is ideal for industries such as chemical processing, papermaking, petroleum, medical applications, and for building curtain walls.
- TR Hard Surface: This category of stainless steel, also known as hard steel, includes grades like 304 and 301. It is used for applications demanding high strength and hardness, such as railway vehicles, conveyor belts, springs, and washers. By leveraging the work hardening properties of austenitic stainless steel, the strength and hardness of steel plates are enhanced through cold working techniques like rolling. The TR hard surface is achieved by cold rolling the material by a few percent to tens of percent without subsequent annealing, creating a robust surface texture.
- Re-Rolled Bright 2H: After the rolling operation, the stainless steel strip undergoes a bright annealing process, ensuring a pristine finish. Utilizing a continuous annealing line, the strip is rapidly cooled as it travels at 60-80m/min. The outcome of this meticulous process is a 2H re-rolled bright surface, boasting exceptional quality.
- No. 4: The No. 4 surface delivers a superior polishing effect, surpassing the brightness of No. 3. Achieved by polishing a cold-rolled stainless steel plate with a 2D or 2B finish, and further refining with a sanding belt of 150-180# grit, this surface offers a surface roughness (Ra) of 0.2 to 1.5μm. Widely acclaimed, the No. 4 surface is ideal for applications in restaurants, cooking equipment, medical facilities, architectural decorations, containers, and more.
- HL: The HL surface, known as a hairline finish, is defined by the Japanese JIS standard as a continuous abrasive surface polished with a 150-240# grit belt. While the Chinese GB3280 standard lacks specific limitations, the HL finish is celebrated for its architectural elegance, making it perfect for elevators, escalators, and exterior walls.
- No. 6: The No. 6 surface builds upon the No. 4 finish, further enhanced with a Tampico brush or W63 grit abrasive as per the GB2477 standard. This surface exhibits a soft metallic luster, subdued reflection, and non-imaging quality, making it ideal for curtain walls, tassel decorations, and culinary applications.
- BA: BA, or Bright Annealed, is a surface treated with bright heat post-cold rolling, ensuring it remains oxidation-free and retains the cold-rolled gloss. Polished with precision rollers, the BA surface achieves a remarkable smoothness, with a roughness of 0.05-0.1μm, nearly mirroring a perfect reflection. This finish is versatile, suitable for food utensils, household appliances, medical equipment, automotive parts, and decorative purposes.
- No. 8: The No. 8 surface offers maximum reflectivity and a mirror-like finish, free of abrasive particles. Commonly referred to as 8K in the stainless steel processing industry, it utilizes BA material as its raw form, which, after polishing, results in an exquisite surface. This high gloss finish is highly sought after for building entrances and interior decor.
Q1: What products can you offer?
A: We provide a range of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series.
Our offerings also include duplex stainless steel such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can craft products tailored to your precise drawings, ensuring utmost satisfaction.
Q3. How does your factory do regarding quality control?
Quality is paramount at Jiangsu Daxun Alloy Co., Ltd. We maintain rigorous quality control from start to finish, ensuring excellence in every product.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can modify the packaging and transportation methods to suit your requirements.
Please note that you will be responsible for any additional costs incurred during this process and any price differences.
Q5. How does your factory manage quality control?
Quality is our utmost priority. We meticulously oversee every aspect of quality control, from the initial stages to the final production.
Q6. What is your estimated delivery timeframe?
A: Typically, 7 to 20 working days post-payment confirmation.
For urgent orders, we expedite our processes to ensure timely completion.
Q7. What are your payment terms?
A: 100% T/T in advance, Western Union (suitable for small orders)
B: 30% T/T upfront and the remaining 70% before shipment
C: 100% Irrevocable LC at sight (ideal for large orders)
Q8: Can you produce Deep Drawing Quality (DDQ)?
A: Absolutely. Our materials are perfect for making stainless steel pots, sinks, bowls, and more. Share your specific needs, and we will tailor the mechanical properties to meet your requirements.
Q9: What is the process for obtaining a sample?
A: We offer FREE samples for your evaluation and testing. If you need a small piece, we can cover the courier cost, subject to conditions.
Q10: Which countries have you exported to?
A: To date, our stainless steel materials have reached Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many other countries.
Q11: How can one visit your company?
A: Fly to Guangzhou Baiyun International Airport, and we will arrange to pick you up.
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