| 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 Duplex 2205 Stainless Steel Coils in a variety of forms and sizes. Our Alloy 2205 adheres to rigorous industry standards set by organizations like ASTM, ASME, ISO, UNS, and EN. Featuring a duplex (austenitic/ferritic) structure, Type 2205 offers superior performance and corrosion resistance compared to 304 and 316 stainless steels. Its unique microstructure and alloying elements provide outstanding protection against stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 withstands oxidation up to 980°C, but is only suitable for specific applications due to potential brittleness between 300°C and 1000°C over long periods. Ideal for a multitude of applications, our 2205 stainless steel comes in strip, coil, and sheet forms.
Daxun Stainless Steel ensures full traceability of each stainless steel coil through our advanced ERP system, detailing type, specification, and origin. We advocate for and support industry anti-counterfeiting measures. Leveraging cutting-edge technology, Daxun sets the industry benchmark for high precision and quality in processing and customization. Our comprehensive service includes professional material selection and processing solutions before sales, stringent monitoring during sales, and reliable after-sales service guarantees, emphasizing product life cycle management.
Quality, Delivery, Inspection
- At Daxun, we perform an array of quality assurance tests to ensure our products meet stringent standards. These include flattening, pitting, resistance, mechanical, hardness, material positive identification, and expansion tests, among others. These thorough assessments guarantee the material's suitability for its intended applications.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface of our products. Our standard delivery time ranges from 7 to 15 days. For special-sized products, the delivery time extends to 20 days, ensuring precise adherence to client specifications.
Our delivery time strictly adheres to the terms outlined in the contract.
- We welcome third-party agencies to inspect our factory for quality assurance.
- We offer free samples for customers to conduct their own testing.
- We support on-site or video inspections of our factory to ensure customer satisfaction.
Ordering Information
When placing purchase orders, please include 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, and we will respond to your email promptly.
Daxun's illustrious journey in the stainless steel business began in 2003. Over the past two decades of exponential growth, Daxun has solidified its position as a trailblazer in China's stainless steel industry.
For over 20 years, Daxun has been a formidable player in the global market. By 2022, its export revenue soared past US$100 million, positioning Daxun among the elite stainless steel trade and processing companies in China. With three strategically established export service bases, Daxun collaborates synergistically with engineering firms, steel mills, and international trading companies. This comprehensive network enables us to continually enhance our service capabilities and penetrate deeper into overseas markets.
Daxun International stands out by offering a unique stainless steel chain supermarket service. Our robust partnerships with dozens of globally renowned steel mills ensure a steady inventory of 60,000 tons of standard stainless steel and 20,000 tons of premium metals, including duplex steel, nickel-based alloys, and heat-resistant steel. Daxun International guarantees impeccable quality and authenticity, with all varieties, specifications, and delivery metrics strictly adhering to industry standards.
Daxun boasts an array of advanced steel processing equipment and a state-of-the-art physical and chemical testing center. Our comprehensive processing lines include cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, ensuring precision and excellence in every project.
Our versatile services span over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. Through strategic collaborations with steel mills and research institutes, we provide seamless integration from project design and material development to processing and manufacturing process optimization.
2205Stainless 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, uniquely alloyed with 22% chromium, 3% molybdenum, and 5-6% nickel. As the most prevalent duplex stainless steel grade, it boasts a yield strength double that of standard austenitic grades. This incredible steel also excels in fatigue strength and exhibits outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even in the most challenging 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 - ensuring longevity and durability
- Effluent scrubbing systems - efficient and reliable
- Pulp and paper industry - suitable for digesters, bleaching equipment, and stock-handling systems
- Cargo tanks for ships and trucks - robust and dependable
- Food processing equipment - hygienic and effective
- Biofuels plants - eco-friendly and sustainable
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 sets a benchmark in corrosion resistance, surpassing 316 and 316L in most environments.
- The robust composition provides excellent resistance to pitting and crevice corrosion, even in oxidizing and acidic solutions.
- Duplex 2205 is highly resistant to chloride stress corrosion cracking and withstands temperatures up to approximately 302°F (150°C).
- The ferrite content enhances its performance in caustic environments.
HEAT RESISTANCE
- Similar to other duplex stainless steels, Duplex 2205 exhibits commendable oxidation resistance at elevated temperatures.
- However, it is susceptible to embrittlement when exposed to temperatures above 572°F (300°C), even for short durations, and thus is not recommended for use beyond this threshold.
WELDING CHARACTERISTICS
- Duplex 2205 possesses excellent weldability.
- Generally, it should not be welded without filler metal to avoid excessive ferrite content.
HEAT TREATMENT
- The annealing temperature range for Duplex 2205 is between 1868 to 2012°F (1020 to 1100°C).
- This alloy cannot be hardened by heat treatment but does work-harden.
- Special considerations 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 between 2010 and 2100°F (1100 to 1150°C). For non-compact workpieces, ensure the edges are adequately heated to prevent cracking in cooler regions.
PROCESSING - COLD FORMING
- Duplex 2205 has demonstrated remarkable formability across various fabrication methods. However, the material's high strength can present challenges. Even when equipment possesses sufficient power, allowances must be made for increased spring-back due to the grade's inherent high strength.
MACHINABILITY
Duplex 2205 presents a slightly higher degree of processing difficulty compared to the 300 series austenitic stainless steels, necessitating greater cutting forces and resulting in accelerated tool wear. Key machining guidelines include: A) Utilize powerful, rigid machines with robust tool and workpiece mounting, B) Reduce vibration by minimizing tool extension, C) Employ a minimal nose radius on the tool for carbides with a sharp edge while ensuring adequate strength, and D) Design machining sequences to ensure each cut reaches below the work-hardened layer from previous passes.
Features of 2205 stainless steel coils
- Type 2205 is a state-of-the-art duplex (austenitic/ferritic) stainless steel enriched with chromium, molybdenum, and nitrogen, which significantly enhances performance and corrosion resistance over 304 and 316 stainless steels. Its unique austenite/ferrite microstructure, coupled with alloying elements, provides exceptional resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 exhibits commendable oxidation resistance up to 980°C but may become brittle when exposed to temperatures between 300°C to 1000°C for prolonged periods. This versatile material is ideal for a wide array of applications in the form of strips, coils, and sheets.
What are the commonly used surfaces of stainless steel coils?
The surface finish of 201 stainless steel coils can vary significantly based on the cold rolling processing techniques and subsequent surface treatments. Common treatments include NO.1, 2B, 4, HL, 6, 8, BA, TR hard, heavy rolling bright 2H, polished bright, and other specialized finishes:
- NO.1: This surface is achieved through a combination of hot rolling, heat treatment, and pickling of the stainless steel strip. It effectively removes the black oxide scale formed during these processes. The No. 1 surface is distinguished by its silvery white, matte appearance and is primarily employed in industries where heat and corrosion resistance are paramount, such as the alcohol and chemical industries, as well as large containers where high surface gloss is not required.
- 2B: Unlike the 2D finish, the 2B surface undergoes additional smoothing with a light roller, resulting in a brighter finish. The surface roughness Ra value, measured by equipment, ranges from 0.1 to 0.5μm, making it highly adaptable for various processing types. This finish is widely used in industries such as chemical, papermaking, petroleum, medical, and is also favored in construction for building curtain walls.
- TR hard surface: TR stainless steel, also known as hard steel, includes grades such as 304 and 301. It is used in applications requiring high strength and hardness, including railway vehicles, conveyor belts, springs, and washers. The concept leverages the work-hardening properties of austenitic stainless steel to enhance the strength and hardness of steel plates through cold working techniques like rolling. The hard material undergoes gentle rolling by a few to several tens of percent, replacing the flatness of the 2B base surface without subsequent annealing, resulting in the TR hard surface characteristic of the cold rolling process.
- Re-rolled bright 2H: After the meticulous rolling operation, our premium stainless steel strip undergoes a bright annealing process. Employing a continuous annealing line, we ensure rapid cooling of the strip, maintaining a swift travel speed of 60-80m/min. This advanced process provides a stunning 2H re-rolled bright surface finish, epitomizing quality and precision.
- No. 4: The No. 4 surface boasts an exceptional polishing effect, offering a brighter finish compared to No. 3. Achieved by polishing the cold-rolled stainless steel plate featuring a 2D or 2B surface, it is then refined with a sanding belt of 150-180# grit. The surface roughness (Ra) is meticulously measured between 0.2 and 1.5μm. Widely cherished for applications in restaurants, cooking equipment, medical equipment, architectural decoration, containers, and more, the No. 4 surface is synonymous with versatility and elegance.
- HL: The HL surface, often referred to as a hairline finish, meets the stringent Japanese JIS standard. This finish is produced through continuous hairline abrasive treatment using a 150-240# abrasive belt. Although the Chinese GB3280 standard is less definitive, the HL finish is prevalent in architectural decoration, notably in elevators, escalators, and exterior walls, offering a sleek and modern aesthetic.
- No. 6: Building upon the No. 4 surface, the No. 6 finish undergoes further refinement with a Tampico brush or W63 grit abrasive material as per GB2477 standards. This process yields a surface with excellent metallic luster, a soft, weakly reflective sheen, and no imaging. Ideal for curtain walls, tassel decoration, and cooking supplies, the No. 6 surface blends performance with sophistication.
- BA: The BA surface undergoes bright heat treatment following cold rolling. This involves annealing in a protective atmosphere to prevent oxidation, preserving the gloss of the cold-rolled surface. Polished with a high-precision smooth roller, the surface achieves outstanding brightness, with surface roughness measured at 0.05-0.1μm, nearing mirror quality. BA surfaces are utilized in diverse applications, including food utensils, household appliances, medical equipment, automotive parts, and decorative elements.
- No. 8: The mirror finish, known for its maximum reflectivity and absence of abrasive particles, is highly esteemed in the stainless steel deep processing industry, often referred to as 8K board. This finish is derived from BA material, requiring only polishing to achieve a dazzling appearance. The mirror surface is a preferred choice for building entrances and interior decoration, exuding elegance and grandeur.
Q1: What products can you offer?
A: We offer a comprehensive range of steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, 300 series, and premium duplex stainless steel varieties like 2205, 2304, 2101, 2507. Additionally, we supply high-nickel alloys such as 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Certainly, we can produce products tailored to your specific drawings, ensuring they meet and exceed your expectations for utmost satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our paramount concern. From inception to completion, we diligently maintain rigorous quality controls to uphold our standards of excellence.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can accommodate changes to the form of packaging and transportation as per your request,
although any additional costs or differences incurred during this period will be your responsibility to cover.
Q5. How does your factory do regarding quality control?
Quality is a priority. We always attach great importance to quality controlling from the beginning to end.
Q6. How long is the delivery time?
A: 7~20 working days after confirming the payment.
If the order is urgent, we will push our workshop to finish in advance.
Q7. What is your Payment?
A: 100% T/T advance, Western Union (For Small Order)
B: 30% T/T and balance 70% before the shipment
C: 100% Irrevocable LC at sight (For Big Order)
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Yes, we can. Our material is suitable for stainless steel pots, sinks, bowls, etc. Just tell us your usage requirements, and we will adjust the mechanical properties to meet your needs.
Q9: How to get a sample?
A: FREE samples are available for your checking and testing. If you require a small piece, we can cover the courier cost depending on the situation.
Q10: Which country have you exported to?
A: Until now, we have exported stainless steel material to the following countries: Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
Q11: How to visit your company?
A: By flight to Guangzhou Baiyun International airport, then we will pick you up.
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