| 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 |
A Global Trailblazer in Stainless Coil Sheet Fabrication Services
Jiangsu Daxun Alloy Co., Ltd. excels in manufacturing high-quality stainless steel coils, specifically Alloy 2205, available in diverse forms and sizes. Our Alloy 2205 aligns with stringent industry standards from ASTM, ASME, ISO, UNS, and EN. Type 2205 is a duplex stainless steel (austenitic/ferritic) that surpasses 304 and 316 stainless steels in performance and corrosion resistance. Its unique microstructure, infused with specific alloying elements, provides exceptional resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 maintains commendable oxidation resistance up to 980°C; however, it is only suited for particular uses due to brittleness that can occur between 300°C and 1000°C over prolonged periods. This versatile alloy is perfect for a myriad of applications, available in strip, coil, and sheet forms.
At Daxun Stainless Steel, we ensure complete traceability of each stainless steel coil through our ERP system, covering type, specification, and origin. We champion anti-counterfeiting initiatives within the industry. Utilizing advanced technology for processing and customization, we set the benchmark for precision and quality. Our comprehensive service approach encompasses product life cycle management, offering expert material selection and processing solutions pre-sale, stringent monitoring during sale, and reliable service guarantees post-sale.
Uncompromised Quality, Prompt Delivery, Rigorous Inspection
- Daxun conducts extensive quality assurance tests, including flattening, pitting resistance, mechanical tests, hardness tests, material positive identification, and expansion tests. These rigorous tests ensure our materials meet the highest standards for your applications.
- Throughout the production process, we meticulously measure the product's diameter, thickness, and surface quality. Our standard delivery time ranges from 7-15 days. For special size products, the delivery period extends to a maximum of 20 days.
Strict Adherence to Contractual Delivery Times
- Third-Party Agency Inspections Welcome at Our Factory
- Complimentary Sample Testing Available for Customers
- We Provide On-site or Video Factory Inspections for Your Convenience
Efficient Ordering Information
To place an order, please specify the quantity, grade, type or category, API5L reference, thickness, width, length, along with any relevant attachments or additional requirements, such as chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun now for a prompt email response.
Daxun's stainless steel journey commenced in 2003. With two decades of dynamic growth, our stainless steel materials and processing business now proudly lead the industry in China.
For over 20 years, Daxun has excelled in international markets. By 2022, our export revenue surpassed US$100 million, ranking us among the top stainless steel trade and processing enterprises in China. We have established three premier export service bases domestically and have forged strong partnerships with engineering firms, steel mills, and global trading companies. Our commitment to enhancing service capabilities and expanding overseas markets remains unwavering.
Daxun International offers comprehensive stainless steel chain supermarket services, partnering with many renowned steel mills globally. We maintain a vast inventory: 60,000 tons of regular stainless steel and 20,000 tons of specialty metals like duplex steel, nickel-based alloys, and heat-resistant steel. Our stainless steel materials are renowned for their reliability and authenticity, with varieties, specifications, and delivery strictly adhering to standards.
Daxun is equipped with advanced steel processing machinery, a state-of-the-art physical and chemical testing center, and diverse processing lines including cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
Our services span over 30 industries such as automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. Partnering with steel mills and research institutions, we deliver integrated 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 is a remarkable two-phase, ferritic-austenitic stainless steel, enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. As the most widely utilized duplex stainless steel grade, it boasts a yield strength that is double that of conventional austenitic grades. This alloy shines with exceptional fatigue strength and unparalleled resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even in the most demanding environments.
APPLICATIONS
- Ideal for chemical processing, transport, and storage - including pressure vessels, tanks, piping, and heat exchangers.
- Crucial for oil and gas exploration and processing equipment, such as piping, tubing, and heat exchangers.
- Perfect for marine environments and other high chloride conditions.
- Essential in effluent scrubbing systems.
- Vital for the pulp and paper industry, including digesters, bleaching equipment, and stock-handling systems.
- Ideal for cargo tanks used in ships and trucks.
- Perfectly suited for food processing equipment.
- Crucial in 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 high chromium, molybdenum, and nitrogen content, Duplex 2205 offers superior corrosion resistance compared to 316 and 316L in most environments.
- The alloy's chromium, molybdenum, and nitrogen composition also ensures high resistance to pitting and crevice corrosion, even in aggressive and acidic solutions.
- Outstanding resistance to chloride stress corrosion cracking and effective up to temperatures of approximately 302°F (150°C).
- The presence of ferrite enhances Duplex 2205's performance in caustic environments.
HEAT RESISTANCE
- Like other duplex stainless steels, Duplex 2205 exhibits excellent oxidation resistance at elevated temperatures.
- However, it is subject to embrittlement when exposed to temperatures above 572°F (300°C), even briefly. Thus, it is not recommended for use above this temperature.
WELDING CHARACTERISTICS
- Exhibits good weldability.
- Generally, welding should not be performed without filler metal, as this may lead to excessive ferrite formation.
HEAT TREATMENT
- The annealing temperature range is between 1868 to 2012°F (1020 to 1100°C).
- Cannot be hardened through heat treatment, but it does work-harden effectively.
- Special care is needed to account for a higher coefficient of thermal expansion to prevent warping and distortion.
PROCESSING - HOT FORMING
- Most producers recommend a maximum hot forming temperature range of 2010 to 2100°F (1100 to 1150°C). If the work piece is not compact, the edges might cool significantly faster than the bulk, increasing the risk of cracking in the cooler areas.
PROCESSING - COLD FORMING
- Duplex 2205 demonstrates excellent formability across various fabrication processes. However, its high strength can present challenges. Even if the equipment is adequately powered, one must account for increased spring-back due to the grade's formidable strength.
MACHINABILITY
Duplex 2205 is somewhat more challenging to machine than the 300 series austenitic stainless steels. It demands higher cutting forces, leading to accelerated tool wear. Recommended machining guidelines include: A) Utilize robust, rigid machines with exceptionally strong and secure mounting for both tools and workpieces, B) Minimize vibration by keeping tool extension as short as possible, C) Employ a nose radius on the tool no larger than necessary for carbides with a sharp edge while maintaining adequate strength, and D) Design machining sequences to ensure the depth of cut penetrates below the work-hardened layer created by previous passes.
Features of 2205 Stainless Steel Coils
- Type 2205 is a duplex (austenitic/ferritic) stainless steel alloyed with chromium, molybdenum, and nitrogen, which significantly enhances performance and corrosion resistance compared to 304 and 316 stainless steel. This alloy's dispersed austenite/ferrite microstructure, combined with its alloying additives, provides resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 maintains acceptable oxidation resistance up to 980°C, though it can become brittle with prolonged exposure to temperatures between 300°C and 1000°C. Stainless steel strips, coils, and sheets made from Type 2205 are suitable for a wide array of applications.
Common Surface Finishes of Stainless Steel Coils
The surface finish of 201 stainless steel coils can vary based on the methods used in cold rolling and subsequent surface treatments. Some of the common surface treatments for stainless steel coils include NO.1, 2B, 4, HL, 6, 8, BA, TR hard, heavy rolling bright 2H, polished bright, among others:
- NO.1: This surface finish is achieved through hot rolling, followed by heat treatment and pickling of the stainless steel strip. It effectively removes the black oxide scale formed during hot rolling and heat treatment through pickling or similar processes. The No. 1 surface is silvery white with a matte finish and is primarily used in heat-resistant and corrosion-resistant industries that do not require high surface gloss, such as the alcohol industry, chemical industry, and large containers.
- 2B: In contrast to the 2D surface, the 2B surface undergoes smoothing with a light roller, resulting in a brighter finish. The surface roughness Ra value, as measured by equipment, ranges from 0.1 to 0.5μm, which is typical for most processing types. This versatile surface finish is suitable for industries such as chemical, papermaking, petroleum, medical, and is widely used in building curtain walls.
- TR Hard Surface: TR stainless steel, also known as hard steel, includes grades like 304 and 301, which are essential for items requiring high strength and hardness, such as railway vehicles, conveyor belts, springs, and washers. This surface utilizes the work-hardening characteristics of austenitic stainless steel to enhance the strength and hardness of steel plates through cold working methods like rolling. Unlike the 2B base surface, the hard material undergoes gentle rolling by a few percent to tens of percent, without post-rolling annealing. Consequently, the TR hard surface is the rolled surface achieved through the cold rolling process.
- Re-rolled Bright 2H: After the rolling operation, the stainless steel strip undergoes a state-of-the-art bright annealing process. Utilizing a continuous annealing line, the strip is rapidly cooled as it progresses along the line at an impressive speed of 60-80m/min. The result? A pristine 2H re-rolled bright surface finish.
- No. 4: The No. 4 surface boasts an exceptional polishing effect, surpassing the brightness of No. 3. Achieved by polishing a cold-rolled stainless steel plate with a 2D or 2B surface and then sanding with a 150-180# grit belt, this polished finish has a surface roughness (Ra) between 0.2 and 1.5μm. Widely embraced in restaurants, cooking equipment, medical devices, architectural decor, and containers, No. 4 exemplifies versatile utility.
- HL: The HL surface, widely recognized as a hairline finish, meets the Japanese JIS standard for a continuous hairline abrasive surface, achieved with a 150-240# abrasive belt. Despite ambiguous restrictions under the Chinese GB3280 standard, HL's elegant finish is a favored choice for architectural decorations like elevators, escalators, and exterior walls.
- No. 6: The No. 6 surface is an enhanced version of No. 4, polished further with a Tampico brush or W63 grit abrasive material as per the GB2477 standard. This finish offers a refined metallic luster, softness, subtle reflection, and non-imaging properties, making it ideal for curtain walls, tassel decorations, and cooking supplies.
- BA: BA stands for Bright Annealed-a surface treated with brilliant heat post-cold rolling. Conducted in a protective atmosphere to prevent oxidation, the BA process maintains the cold-rolled gloss, further polished by a high-precision roller to enhance brightness. With surface roughness between 0.05-0.1μm, the BA finish is nearly mirror-like, suitable for applications in food utensils, household appliances, medical devices, automotive parts, and decorative items.
- No. 8: Known for its mirror surface and maximum reflectivity free of abrasive particles, the No. 8 finish is synonymous with the 8K board in the stainless steel deep processing industry. Leveraging BA material for mirror processing yields a stunning, reflective surface, perfect for building entrances and interior decor.
Q1: What products can you offer?
A: We offer an extensive range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 300 series, and 400 series. Our portfolio also encompasses duplex stainless steel such as 2205, 2304, 2101, 2507, as well as high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can tailor our production to your precise drawings, ensuring maximum satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our paramount priority. We maintain stringent quality control measures from inception to completion of the production process.
Q4. Can I request to change the form of packaging and transportation?
Absolutely, we can adapt the packaging and transportation forms to align with your requests.
Please note that any additional costs incurred and differences in pricing during this period will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is a priority. We place paramount importance on meticulous quality control throughout every stage of production, from inception to completion.
Q6. How long is the delivery time?
A: Typically, our delivery time ranges from 7 to 20 working days after payment confirmation.
If the order is urgent, we expedite the process to ensure timely completion ahead of schedule.
Q7. What is your Payment?
A: 100% T/T in advance, Western Union (For Small Orders)
B: 30% T/T deposit and the remaining 70% before shipment
C: 100% Irrevocable LC at sight (For Large Orders)
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Yes, we can. Our materials are ideal for stainless steel pots, sinks, bowls, etc. Share your specific requirements, and we will tailor the mechanical properties to suit your needs.
Q9: How to get a sample?
A: FREE samples are available for your inspection. 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 stainless steel materials to 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 a pickup for you.
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