| 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 Pioneer in Stainless Coil Sheet Fabrication Services
Daxun manufactures premier Alloy 2205 stainless steel coils in various forms and sizes, adhering to a multitude of industry standards such as ASTM, ASME, ISO, UNS, and EN. Type 2205, a duplex (austenitic/ferritic) stainless steel, exhibits superior performance and corrosion resistance over 304 and 316 stainless steels. The alloy's unique austenitic/ferritic microstructure, combined with alloying additives, provides exceptional resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 is oxidation-resistant up to 980°C, although it's suitable for specific applications due to brittleness when exposed to temperatures between 300°C and 1000°C for prolonged periods. Our stainless steel strips, coils, and sheets are versatile for a broad spectrum of applications.
At Daxun Stainless Steel, we ensure complete traceability of each stainless steel coil through our ERP system, which includes type, specifications, and origin. We advocate for and encourage industry anti-counterfeiting measures. Leveraging advanced technology for processing and customization, we set the industry benchmark for high precision and quality. Our comprehensive service includes product lifecycle management, professional material selection, and processing solutions pre-sale, stringent monitoring during sales, and reliable service guarantees post-sale.
Excellence in Quality, Timely Delivery, and Rigorous Inspection
- Daxun conducts an array of stringent quality assurance tests such as flattening tests, pitting and resistance tests, mechanical tests, hardness tests, positive material identification, and expansion tests. These meticulous tests ensure that the material meets all required specifications for its intended application.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface quality of our products. Our standard delivery timeframe is 7-15 days, extending to 20 days for products with special size requirements.
Our delivery schedule is strictly adhered to as per the contract agreements.
- We support inspections by customer-appointed third-party agencies at our factory.
- Free sample testing is available for our customers.
- We offer both on-site and video factory inspection options.
Comprehensive Ordering Information
Purchase orders should specify the quantity, grade, type or category, API5L reference, thickness, width, length, and any applicable attachments or additional requirements pertaining to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Reach out to Daxun now, and we'll respond to your email promptly.
Daxun's stainless steel business, initiated in 2003, has witnessed significant strides over the past two decades. With unwavering commitment and innovation, our stainless steel materials and processing services are now leading the industry in China.
With over 20 years in the international market, Daxun achieved an export revenue surpassing US$100 million in 2022, positioning us as a top player in stainless steel trade and processing in China. We have strategically established three export service bases, partnering with engineering firms, steel mills, and global trading companies to enhance our service capabilities and expand our presence in overseas markets.
Daxun International offers comprehensive stainless steel chain supermarket services, maintaining long-standing partnerships with leading steel mills worldwide. Our inventory boasts 60,000 tons of standard stainless steel and 20,000 tons of specialized metals including duplex steel, nickel-based alloys, and heat-resistant steel. Each material we offer is guaranteed for reliability and authenticity, with strict adherence to variety, specification, and delivery weight standards.
Equipped with advanced steel processing machinery and a state-of-the-art physical and chemical testing center, Daxun provides a full spectrum of processing services: cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, ensuring precision and quality in every product.
Our services span over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, and petrochemicals. Collaborating with steel mills and research institutes, we deliver comprehensive solutions from project design and material development to process optimization in manufacturing.
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 premium, two-phase ferritic-austenitic stainless steel, enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. This grade stands as the most widely utilized duplex stainless steel, boasting a yield strength twice that of conventional austenitic grades. It showcases remarkable fatigue strength and unparalleled resistance against stress corrosion cracking, crevice, pitting, erosion, and general corrosion, even in the harshest of environments.
APPLICATIONS
- Chemical processing, transport, and storage - ideal for pressure vessels, tanks, piping, and heat exchangers.
- Oil and gas exploration and processing - perfect for piping, tubing, and heat exchangers.
- Marine and high chloride environments.
- Effluent scrubbing systems.
- Pulp and paper industry - used in 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
- With elevated levels of chromium, molybdenum, and nitrogen, Duplex 2205 exhibits exceptional corrosion resistance, outperforming 316 and 316L in most conditions.
- The alloy's composition also ensures high resistance to pitting and crevice corrosion, even in oxidizing and acidic environments.
- Resilient to chloride stress corrosion cracking, maintaining integrity at temperatures up to 302°F (150°C).
- The ferritic phase in Duplex 2205 enhances its performance in caustic conditions.
HEAT RESISTANCE
- Like other duplex stainless steels, Duplex 2205 demonstrates commendable oxidation resistance at elevated temperatures.
- However, it is prone to embrittlement if exposed to temperatures above 572°F (300°C) for even short periods. Thus, it is not recommended for use above this threshold.
WELDING CHARACTERISTICS
- Duplex 2205 offers commendable weldability.
- Should generally not be welded without filler metal, as it can lead to excessive ferrite formation.
HEAT TREATMENT
- Optimal annealing temperature ranges between 1868 to 2012°F (1020 to 1100°C).
- While it cannot be hardened by heat treatment, Duplex 2205 does work-harden.
- Special considerations are required to counteract the higher coefficient of thermal expansion, preventing warping and distortion.
PROCESSING - HOT FORMING
- Leading Duplex 2205 manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). For non-compact shapes, edges may cool more rapidly than the bulk, heightening the risk of cracking in cooler regions.
PROCESSING - COLD FORMING
- Duplex 2205 exhibits impressive formability across diverse fabrication processes. However, its high strength can present challenges, often requiring adjustments even if the equipment is adequately powerful. Special considerations must be made for the heightened spring-back effect due to the grade's robust strength.
MACHINABILITY
Processing Duplex 2205 is marginally more challenging than working with 300 series austenitic stainless steels. Enhanced cutting forces are necessary, leading to accelerated tool wear. Essential machining guidelines include: A) Employ robust, stable machinery with extremely firm mounting for tools and workpieces, B) Reduce vibration by minimizing tool extension, C) Utilize a nose radius on the tool no larger than necessary for carbide tools with sharp edges while maintaining adequate strength, and D) Plan machining sequences to ensure each cut penetrates beneath the work-hardened layer from previous passes.
Features of 2205 stainless steel coils
- Type 2205 is a duplex stainless steel combining austenitic and ferritic structures, enriched with chromium, molybdenum, and nitrogen to enhance performance and corrosion resistance compared to 304 and 316 stainless steels. Its mixed austenite/ferrite microstructure and alloying elements offer excellent resistance to stress corrosion cracking, pitting, and chlorinated crevice corrosion. Alloy 2205 maintains acceptable oxidation resistance up to 980°C but may become brittle if exposed to temperatures between 300°C and 1000°C for prolonged periods. This stainless steel variant is versatile, suitable for numerous applications in strip, coil, and sheet forms.
What are the commonly used surfaces of stainless steel coils?
The surface finish of 201 stainless steel coil varies with the cold rolling methods and subsequent surface treatments. Available 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 strip. Designed to eliminate the black oxide scale formed during these processes, the No. 1 surface is silvery-white and matte. It is predominantly used in heat-resistant and corrosion-resistant industries where high surface gloss is unnecessary, such as the alcohol, chemical industries, and large container manufacturing.
- 2B: Distinct from the 2D finish, the 2B surface is brightened using a light rolling process. This treatment achieves a surface roughness Ra value of 0.1 to 0.5μm, suitable for various processing types. The 2B finish is highly adaptable, making it ideal for chemical, papermaking, petroleum, medical industries, and architectural applications like building curtain walls.
- TR hard surface: TR stainless steel, or hard steel, includes grades like 304 and 301, used for high-strength and hardness applications such as railway vehicles, conveyor belts, springs, and washers. The method harnesses the work-hardening properties of austenitic stainless steel, enhancing strength and hardness through cold working like rolling. Unlike the 2B surface, the hard material undergoes gentle rolling by a few to several percent, without subsequent annealing, resulting in the characteristic TR hard surface of the cold-rolled material.
- Re-rolled bright 2H: Following the rolling operation, the stainless steel strip undergoes a bright annealing process. Utilizing a continuous annealing line, the strip is rapidly cooled while traveling at a speed of 60-80m/min. This meticulous process ensures the surface finish achieves a 2H re-rolled bright quality, setting a new standard of excellence.
- No. 4: The No. 4 surface offers superior polishing results and a brighter finish compared to No. 3. This finish is achieved by polishing the cold-rolled stainless steel plate with a 2D or 2B surface, followed by a sanding belt with a grit size of 150-180#. Surface roughness (Ra) is meticulously measured between 0.2 and 1.5μm. The versatile No. 4 finish is ideal for applications including restaurant and cooking equipment, medical devices, architectural decoration, containers, and much more.
- HL: The HL finish, known for its hairline appearance, is defined by the Japanese JIS standard as a continuous hairline abrasive surface achieved with a 150-240# abrasive belt. While the Chinese GB3280 standard offers less clarity, the HL surface is highly sought after for architectural applications such as elevators, escalators, and exterior walls, offering an elegant touch.
- No. 6: The No. 6 surface takes the No. 4 finish to the next level, polished with a Tampico brush or a W63 grit abrasive as specified in the GB2477 standard. This results in a surface that boasts a good metallic luster, softness, minimal reflection, and no imaging-perfect for curtain walls, tassel decorations, and culinary applications.
- BA: BA, or Bright Annealed, is a surface finish achieved through bright heat treatment post-cold rolling. This annealing process in a protective atmosphere prevents oxidation, retaining the natural gloss of the cold-rolled surface. Polished with a high-precision smooth roller, the surface brightness is significantly enhanced, with surface roughness evaluated at 0.05-0.1μm. BA surfaces are ideal for use in food utensils, household appliances, medical equipment, automotive parts, and decorative items.
- No. 8: The No. 8 mirror finish offers maximum reflectivity with no abrasive particles, often referred to as 8K board in the stainless steel processing industry. BA material serves as the raw material, requiring only polishing to achieve a breathtaking mirror finish. This superior surface is frequently used for building entrances and interior decorations, adding a touch of elegance and sophistication.
Q1: What products can you offer?
A: We offer a wide range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L 300 series, and 400 series, as well as duplex stainless steels like 2205, 2304, 2101, 2507, and high-nickel alloys such as 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 customize products based on your drawings to ensure they meet your exact specifications and satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We implement rigorous quality control measures from the beginning of production to the final inspection to ensure superior product quality.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can accommodate changes in packaging and transportation according to your requests,
though you will be responsible for any additional costs and the differences incurred during this period.
Q5. How does your factory do regarding quality control?
Quality is our utmost priority. From inception to final delivery, we meticulously maintain stringent quality control measures to ensure unparalleled standards.
Q6. How long is the delivery time?
A: Typically, our delivery timeframe spans 7 to 20 working days post payment confirmation.
For urgent orders, we expedite production to meet your critical deadlines efficiently.
Q7. What is your Payment?
A: 100% T/T advance, Western Union (For Small Orders)
B: 30% T/T upfront, with the remaining 70% due before shipment.
C: 100% Irrevocable LC at sight (For Large Orders)
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely. Our materials are engineered for high-quality deep drawing, suitable for stainless steel pots, sinks, bowls, and more. Share your specific application, and we'll tailor the mechanical properties to perfectly suit your needs.
Q9: How to get a sample?
A: We provide FREE samples for your evaluation and testing. For small pieces, we may also cover courier costs depending on the situation.
Q10: Which countries have you exported to?
A: To date, we have supplied our stainless steel materials to countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many more.
Q11: How to visit your company?
A: Fly to Guangzhou Baiyun International Airport, and we will personally pick you up for a seamless visit.
Audited Supplier 
){kind=link}