| 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 POSCO 2205 Stainless Steel Coils in a variety of forms and sizes, adhering to stringent industry standards set by ASTM, ASME, ISO, UNS, and EN. Our Type 2205 duplex (austenitic/ferritic) stainless steel surpasses 304 and 316 stainless steels in performance and corrosion resistance. The unique austenitic/ferritic microstructure, enhanced by alloying additives, ensures resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. With oxidation resistance up to 980°C, Alloy 2205 is suitable for numerous applications, although extended exposure to temperatures between 300°C and 1000°C can cause brittleness. Our stainless steel strip, coil, and sheet are versatile and ideal for a wide range of industrial uses.
At Daxun Stainless Steel, we ensure full traceability of each stainless steel coil via our advanced ERP system, tracking type, specification, and origin. We champion industry anti-counterfeiting and leverage cutting-edge technology for precise processing and customization, setting the benchmark for quality. Our comprehensive service includes professional material selection and processing solutions pre-sale, stringent monitoring during sales, and reliable post-sale service guarantees, embodying product life cycle management.
Quality, Delivery, Inspection
- Daxun conducts a series of rigorous quality assurance tests such as flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These evaluations ensure our materials meet the highest standards for their intended applications.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface quality of our products. Our standard delivery time is efficiently managed between 7-15 days. For special sizes, delivery may extend to 20 days, ensuring we meet all client specifications.
We strictly adhere to our contractual delivery timelines.
- We support customer third-party inspections at our factory.
- We provide free samples for customer testing.
- We offer both on-site and video factory inspections to ensure transparency and trust.
Ordering Information
To place an 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, testing, manufacturing process, surface coating, or end finish. Contact Daxun today, and we'll promptly respond to your email.
Daxun's stainless steel legacy commenced in 2003, and over the span of two decades, it has surged to the forefront of China's industry with its premium stainless steel materials and unparalleled processing expertise.
For over 20 years, Daxun has been a stalwart in international markets. In 2022 alone, the company's export revenue soared beyond US$100 million, securing its position among China's top stainless steel trade and processing firms. With three strategically located export service bases across China, Daxun collaborates with engineering giants, steel mills, and global traders to continually elevate its service capabilities and expand its global footprint.
Daxun International offers a comprehensive stainless steel supermarket service, fostered by enduring partnerships with leading steel mills worldwide. Boasting 60,000 tons of standard stainless steel and 20,000 tons of specialized metals including duplex steel, nickel-based alloys, and heat-resistant steel, Daxun International guarantees the highest quality materials. Each variety, specification, and delivery weight strictly adheres to rigorous standards, ensuring reliability and authenticity.
Equipped with an array of advanced steel processing machinery and a state-of-the-art physical and chemical testing center, Daxun excels in a multitude of processes such as cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
Spanning over 30 industries, Daxun's services encompass automobiles, 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, Daxun delivers integrated solutions from project design and material development to processing and manufacturing 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 premium two-phase, ferritic, austenitic stainless steel enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. It stands as the most widely utilized duplex stainless steel grade, boasting a yield strength twice that of conventional austenitic grades. This alloy excels with outstanding fatigue strength and unparalleled 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 - optimal for piping, tubing, and heat exchangers
- Marine and other 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 rich content of chromium, molybdenum, and nitrogen, Duplex 2205 exhibits superior corrosion resistance compared to 316 and 316L in a majority of environments.
- The blend of chromium, molybdenum, and nitrogen also delivers exceptional resistance to pitting and crevice corrosion, even in oxidizing and acidic solutions.
- Duplex 2205 is resilient against chloride stress corrosion cracking up to temperatures of approximately 302°F (150°C)
- The presence of ferrite ensures excellent performance in caustic environments.
HEAT RESISTANCE
- Like other duplex stainless steels, Duplex 2205 offers commendable oxidation resistance at elevated temperatures.
- Susceptible to embrittlement when exposed to temperatures above 572°F (300°C) even for brief durations; thus, Duplex 2205 is not recommended for use beyond this temperature threshold.
WELDING CHARACTERISTICS
- Exhibits good weldability
- Generally, welding without filler metal should be avoided as it may lead to excessive ferrite.
HEAT TREATMENT
- The annealing temperature ranges from 1868 to 2012°F (1020 to 1100°C).
- While it cannot be hardened by heat treatment, Duplex 2205 does work-harden.
- Special considerations are necessary to accommodate a 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). If the shape of the workpiece isn't compact, edges may cool significantly faster than the bulk, risking cracks in the cooler regions.
PROCESSING - COLD FORMING
- Duplex 2205 has demonstrated excellent formability across varied fabrications. However, its high strength can pose challenges. Even with powerful equipment, allowances must be made for higher spring-back due to the grade's robust strength.
EXCEPTIONAL MACHINABILITY
Duplex 2205 poses a slightly greater challenge in processing compared to the 300 series austenitic stainless steels. It demands higher cutting forces, leading to accelerated tool wear. Here are some machining guidelines for optimal results: A) Employ powerful and rigid machines with extremely robust mounting for both tools and workpieces, B) Minimize vibration by maintaining the shortest possible tool extension, C) Use a nose radius on the tool that is no larger than necessary, with sharp-edged carbides offering sufficient strength, and D) Plan machining sequences to ensure that each cut penetrates below the work-hardened layer from previous passes.
Key Attributes of 2205 Stainless Steel Coils
- Type 2205 stands as a superior duplex (austenitic/ferritic) stainless steel, enriched with chromium, molybdenum, and nitrogen, which significantly enhances its performance and corrosion resistance over 304 and 316 stainless steels. The alloy's unique austenite/ferrite microstructure, combined with these alloying elements, endows it with robust resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 can withstand oxidation up to 980°C for certain applications, although it may become brittle after prolonged exposure to 300°C to 1000°C. Type 2205 stainless steel is versatile, available in strip, coil, and sheet forms, catering to a broad spectrum of applications.
Common Surface Finishes for Stainless Steel Coils
The surface finish of 201 stainless steel coil can vary based on the cold rolling processing techniques and subsequent surface treatments employed. These treatments include NO.1, 2B, 4, HL, 6, 8, BA, TR hard, heavy rolling bright 2H, polished bright, among other specialized finishes:
- NO.1: NO.1 finish is achieved through hot rolling, heat treatment, and pickling of stainless steel strip. This process removes the black oxide scale formed during hot rolling and heat treatment, leaving a silvery white, matte surface. NO.1 finish is predominantly used in industries requiring heat and corrosion resistance without a need for high surface gloss, such as the alcohol industry, chemical sector, and for large containers.
- 2B: The 2B finish, unlike the 2D surface, is smoothed with a light roller, resulting in a brighter surface. The surface roughness Ra value typically ranges from 0.1 to 0.5μm, making it suitable for most processing types. This versatile finish is ideal for the chemical, papermaking, petroleum, medical industries, and is widely used in building curtain walls.
- TR Hard Surface: TR stainless steel, also known as hard steel, includes grades such as 304 and 301. These are utilized for products requiring high strength and hardness, like railway vehicles, conveyor belts, springs, and washers. The process leverages the work-hardening properties of austenitic stainless steel, enhancing the strength and hardness of the plates through cold working methods like rolling. To preserve the gentle flatness of the 2B base surface, hard materials are lightly rolled by a few to several tens of percent without undergoing annealing post-rolling. Consequently, the TR hard surface is the post-cold rolling finish.
- Re-Rolled Bright 2H: Following the rolling process, the stainless steel strip undergoes bright annealing. This involves rapid cooling via a continuous annealing line, where the strip moves at speeds of 60-80m/min. The result is a 2H re-rolled bright surface finish.
- No. 4: The No. 4 surface offers superior polishing results with a brightness level higher than No. 3. It is achieved by polishing a cold-rolled stainless steel plate with a 2D or 2B finish, followed by sanding with a 150-180# grit belt. The surface roughness (Ra) ranges between 0.2 and 1.5μm. This polished surface is extensively utilized in various industries, including restaurant and cooking equipment, medical devices, architectural decorations, containers, and more.
- HL: The HL surface, known as a hairline finish, is characterized by a continuous abrasive pattern. According to the Japanese JIS standard, this finish is achieved using a 150-240# abrasive belt. The Chinese GB3280 standard lacks clear specifications. The HL finish is predominantly used in architectural applications, such as elevators, escalators, and exterior walls.
- No. 6: The No. 6 surface is an enhancement over the No. 4 finish, polished further using a Tampico brush or W63 grit abrasive as per GB2477 standards. This surface boasts a refined metallic sheen, softness, and low reflectivity without imaging, making it ideal for curtain walls, decorative tassels, and cooking supplies.
- BA: The BA surface is achieved through a bright heat treatment post-cold rolling. This process involves annealing in a protective atmosphere to prevent oxidation, preserving the cold-rolled gloss. Further polishing with high-precision smooth rollers enhances the surface brightness. The roughness is between 0.05-0.1μm, closely resembling a mirror finish. The BA surface is versatile, suitable for food utensils, household appliances, medical instruments, automotive components, and decorative purposes.
- No. 8: The No. 8 surface, also referred to as a mirror finish, offers maximum reflectivity without abrasive particles. Often called an 8K board in the stainless steel processing industry, it is derived from BA material with additional polishing. This highly reflective and aesthetically pleasing surface is ideal for building entrances and interior decoration.
Q1: What products can you offer?
A: We offer a wide range of steel types, including general steels like 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, and the 300 and 400 series. Additionally, we provide duplex stainless steels 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 precisely according to your drawings, ensuring they meet your highest expectations.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We consistently emphasize stringent quality control measures from start to finish.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can accommodate changes in packaging and transportation as per your requests,
though you will need to cover any additional costs and differences incurred during this period.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We consistently emphasize stringent quality control measures from start to finish.
Q6. How long is the delivery time?
A: Delivery takes approximately 7 to 20 working days after payment confirmation.
If your order is urgent, we prioritize and expedite production to meet your deadlines.
Q7. What are your payment terms?
A: 100% T/T in advance or Western Union for smaller orders.
B: 30% T/T upfront and the remaining 70% before shipment.
C: 100% Irrevocable LC at sight for larger orders.
Q8: Do you provide Deep Drawing Quality (DDQ) materials?
A: Yes, we do. Our materials are suitable for producing stainless steel pots, sinks, bowls, and more. Let us know your specific application, and we'll tailor the mechanical properties to suit your needs.
Q9: How can I obtain a sample?
A: We provide FREE samples for examination and testing. For small pieces, we may cover the courier cost depending on the situation.
Q10: Which countries have your products been exported to?
A: We have exported our stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, among others.
Q11: How can I visit your company?
A: Fly to Guangzhou Baiyun International Airport, and we will arrange transportation for you from there.
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