| 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 stainless steel coils Alloy 2205 in diverse forms and sizes. Our Alloy 2205 meets numerous industry standards, including ASTM, ASME, ISO, UNS, and EN. This duplex (austenitic/ferritic) stainless steel outperforms 304 and 316 in both performance and corrosion resistance. The alloy's microstructure and additives provide robust resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. It boasts reliable oxidation resistance up to 980°C, though it becomes brittle when exposed to 300°C to 1000°C for long periods. Alloy 2205 stainless steel strip, coil, and sheet are versatile for numerous applications.
Daxun Stainless Steel ensures full traceability of each stainless steel coil through our ERP system, detailing type, specification, and origin. We champion industry anti-counterfeiting measures. Leveraging cutting-edge technology for processing and customization, our precision and quality set industry standards. Our service model emphasizes product life cycle management, offering professional pre-sales material selection and processing solutions, stringent sales monitoring, and reliable after-sales service guarantees.
Quality, delivery, inspection
- Daxun conducts rigorous quality assurance tests including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These stringent checks ensure the material's suitability for its intended applications.
- During production, we meticulously measure the product's diameter, thickness, and surface. Our standard delivery time is 7-15 days, extended to 20 days for special size products.
Our delivery schedule adheres strictly to the contract.
- We support customer third-party agencies for factory inspections.
- We offer free samples to customers for testing.
- We support on-site or video factory inspections.
Ordering Information
Purchase orders should detail quantity, grade, type or category, API5L reference, thickness, width, length, and any additional requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun now, and we will respond promptly.
Daxun's stainless steel journey started back in 2003. Over two dynamic decades of growth, the company has ascended to the vanguard of China's stainless steel industry, excelling in both materials and processing.
With over 20 years of dedication to international markets, Daxun's 2022 export revenue soared past US$100 million, positioning us among China's elite stainless steel trade and processing firms. We've established three strategic export service bases within China and have forged robust alliances with engineering firms, steel mills, and international trading companies to extend our global reach. Our commitment remains steadfast in enhancing service capabilities and expanding our international footprint.
Daxun International offers comprehensive stainless steel chain supermarket services and boasts long-term partnerships with numerous renowned global steel mills. We maintain an impressive stock of 60,000 tons of standard stainless steel and an additional 20,000 tons of specialized metals, including duplex steel, nickel-based alloys, and heat-resistant steel. Our stainless steel materials are synonymous with reliability and authenticity, strictly adhering to specified varieties, specifications, and delivery weights.
Equipped with an array of advanced steel processing machinery and a state-of-the-art physical and chemical testing center, Daxun provides a suite of processing services including cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
Our services span over 30 diverse industries such as automobiles, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. Collaborating 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, a remarkable two-phase ferritic-austenitic stainless steel, is alloyed with 22% chromium, 3% molybdenum, and 5-6% nickel. Renowned as the most commonly used duplex stainless steel grade, it boasts a yield strength that doubles that of standard austenitic grades. Duplex 2205 excels with exceptional fatigue strength and outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even in the harshest conditions.
APPLICATIONS
- Ideal for chemical processing, transport, and storage, Duplex 2205 is used in pressure vessels, tanks, piping, and heat exchangers.
- Oil and gas exploration and processing equipment benefit from its use in piping, tubing, and heat exchangers.
- Designed for marine and other high chloride environments.
- Perfect for effluent scrubbing systems.
- Widely used in the pulp and paper industry for digesters, bleaching equipment, and stock-handling systems.
- Essential for cargo tanks in ships and trucks.
- Crucial for food processing equipment.
- A key material in biofuels plants.
STANDARDS
- Compliant with ASTM/ASME A240 UNS S32205/S31803 standards.
- Adheres to EURONORM 1.4462 X2CrNiMoN 22.5.3 standards.
- Meets AFNOR Z3 CrNi 22.05 AZ standards.
- DIN standard W.Nr 1.4462 compliant.
CORROSION RESISTANCE
- Duplex 2205 excels in corrosion resistance, surpassing 316 and 316L in most environments due to its high chromium, molybdenum, and nitrogen content.
- Exhibits high resistance to pitting and crevice corrosion, even in challenging oxidizing and acidic solutions.
- Withstands chloride stress corrosion cracking and temperatures up to approximately 302°F (150°C).
- The ferrite content ensures excellent performance in caustic environments.
HEAT RESISTANCE
- Duplex 2205 offers good oxidation resistance at elevated temperatures, similar to other duplex stainless steels.
- However, it is subject to embrittlement at temperatures exceeding 572°F (300°C), even for short durations, making it unsuitable for applications above this threshold.
WELDING CHARACTERISTICS
- Duplex 2205 is notable for its good weldability.
- It is not generally recommended to weld without filler metal, as this may lead to excessive ferrite formation.
HEAT TREATMENT
- The annealing temperature range for Duplex 2205 is between 1868 to 2012°F (1020 to 1100°C).
- While it cannot be hardened by heat treatment, Duplex 2205 is known to work-harden.
- Special considerations are necessary to accommodate its higher coefficient of thermal expansion to prevent warping and distortion.
PROCESSING - HOT FORMING
- Duplex 2205 producers recommend hot forming at a maximum temperature range of 2010 to 2100°F (1100 to 1150°C). For non-compact workpieces, cooler edges may increase the risk of cracking.
PROCESSING - COLD FORMING
- Duplex 2205 stands out for its exceptional formability across various fabrications. However, its high strength can introduce challenges. Even with robust equipment, one must account for the increased spring-back due to the grade's superior strength.
MACHINABILITY
Processing Duplex 2205 is a bit more challenging than the 300 series austenitic stainless steels. It necessitates higher cutting forces, leading to faster tool wear. Suggested machining guidelines include: A) Employ powerful, rigid machines with extremely strong, rigid mounts for tools and workpieces, B) Minimize vibration by keeping tool extensions as short as possible, C) Utilize a nose radius on tools no longer than necessary, ensuring sharp edges for carbides while maintaining adequate strength, and D) Design machining sequences to ensure a depth of cut below the work-hardened layer from previous passes.
Features of 2205 Stainless Steel Coils
- Type 2205 is a duplex stainless steel alloy, combining austenitic and ferritic phases, with added chromium, molybdenum, and nitrogen for enhanced performance and corrosion resistance compared to 304 and 316 stainless steel. Its dispersed austenite/ferrite microstructure, along with alloying additives, provides excellent resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 is oxidation-resistant up to 980°C, but care is needed for extended durations at 300°C to 1000°C to prevent brittleness. Available in strip, coil, and sheet forms, Type 2205 is versatile for many applications.
What are the Commonly Used Surfaces of Stainless Steel Coils?
The surface finish of 201 stainless steel coil can vary based on cold rolling methods and post-rolling surface treatments. Common 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 after hot rolling, heat treatment, and pickling, which removes the black oxide scale formed during these processes. NO.1 surface ranks first in surface treatments and is silvery white with a matte finish. It's typically used in heat-resistant and corrosion-resistant industries that don't require high surface gloss, such as the alcohol industry, chemical industry, and for large containers.
- 2B: The 2B surface is smoother than the 2D surface, achieved by a light rolling process that imparts a brighter finish. The surface roughness Ra value ranges from 0.1 to 0.5μm. This adaptable surface is suitable for chemical, papermaking, petroleum, medical industries, and a variety of applications including building curtain walls.
- TR Hard Surface: TR stainless steel, also known as hard steel, includes grades like 304 and 301. It's used for high-strength, high-hardness applications such as railway vehicles, conveyor belts, springs, and washers. Utilizing the work hardening characteristics of austenitic stainless steel, TR hard surface steel plates are strengthened and hardened through cold rolling without subsequent annealing. This process produces a hard surface with superior strength and hardness.
- Re-rolled Bright 2H: Post the rolling operation, the stainless steel strip undergoes a bright annealing treatment. Utilizing a continuous annealing line ensures rapid cooling of the strip, which travels at an impressive speed of 60-80m/min. This meticulous process bestows the strip with a lustrous 2H re-rolled bright surface finish, elevating its aesthetic and functional qualities.
- No. 4: The No. 4 surface finish exudes a superior polishing effect, surpassing the brightness of No. 3. Achieved by polishing cold-rolled stainless steel plates with a 2D or 2B surface, followed by a sanding belt with a particle size of 150-180#. The surface roughness (Ra) is meticulously measured between 0.2 and 1.5μm. This versatile surface is extensively utilized in high-demand sectors such as restaurants, cooking equipment, medical facilities, architectural decoration, and containers.
- HL: The HL surface, commonly referred to as a hairline finish, is specified in the Japanese JIS standard as a continuous hairline abrasive surface created by polishing with a 150-240# abrasive belt. The Chinese GB3280 standard provides less clarity. This sophisticated finish is predominantly employed in architectural decoration for elevators, escalators, and exterior walls, offering both aesthetic appeal and durability.
- No. 6: Building on the foundation of No. 4, the No. 6 surface is further enhanced with a Tampico brush or a W63 grit abrasive material per the GB2477 standard. This surface offers a refined metallic luster, softness, minimal reflection, and no imaging, making it perfect for curtain walls, tassel decorations, and premium cooking supplies.
- BA: The BA surface is exceptionally bright due to heat treatment after cold rolling. Conducted in a protective atmosphere to prevent oxidation, this process retains the gloss of the cold-rolled surface. Post-treatment, the surface is polished with a high-precision smooth roller to amplify its brightness, achieving surface roughness of 0.05-0.1μm, nearing mirror quality. BA surfaces are ideal for diverse applications such as food utensils, household appliances, medical equipment, automotive parts, and decorative items.
- No. 8: Renowned for its mirror-like finish with maximum reflectivity and no abrasive particles, the No. 8 surface, also known as 8K board in the industry. BA material serves as the base for mirror processing, requiring minimal polishing. Once processed to a mirror finish, it offers stunning visual appeal, making it a popular choice for building entrances and interior decorations.
Q1: What products can you offer?
A: We proudly offer a comprehensive range of steel types including general grades like 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L. Additionally, we provide 300 and 400 series stainless steel, as well as duplex stainless steel such as 2205, 2304, 2101, 2507, along with high-nickel alloys like 904L, 800H, and 600H.
400 series, and duplex stainless steel like 2205, 2304,2101,2507,etc. 904L, 800H, 600H high-nickel alloy.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products tailored to your drawings, ensuring they meet and exceed your expectations.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We implement stringent 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 in adapting the form of packaging and transportation to meet your requirements,
however, any additional costs incurred during this period, including any differences in pricing, will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our hallmark. From inception to completion, we prioritize stringent quality control measures to ensure impeccable standards.
Q6. How long is the delivery time?
A: Delivery is within 7 to 20 working days after payment confirmation.
For urgent orders, we expedite production to meet your deadlines.
Q7. What is your Payment?
A: 100% T/T in advance, Western Union for small orders.
B: 30% T/T upfront, with the remaining 70% paid before shipment.
C: 100% Irrevocable LC at sight for large orders.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely! Our material is ideal for stainless steel pots, sinks, bowls, and more. Share your 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 evaluation. For small pieces, we may cover the courier costs, depending on the situation.
Q10: Which countries have you exported to?
A: We have proudly exported our stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
Q11: How to visit your company?
A: Fly to Guangzhou Baiyun International Airport, and we will arrange a pickup for you.
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