| 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 Pioneer in Stainless Coil Sheet Fabrication Services
At Daxun, we specialize in manufacturing premium stainless steel coils, particularly the Alloy 2205 variant. Available in diverse forms and sizes, our Alloy 2205 meets stringent industry standards set by ASTM, ASME, ISO, UNS, and EN. This duplex (austenitic/ferritic) stainless steel surpasses 304 and 316 variants in performance and corrosion resistance. Its unique microstructure, augmented with specific alloying elements, provides robust protection against stress corrosion cracking, pitting, and ***-induced crevice corrosion. While Alloy 2205 can withstand oxidation up to 980°C, it is best suited for applications excluding prolonged exposure to temperatures between 300°C and 1000°C due to brittleness concerns. Ideal for a wide range of applications, our Type 2205 stainless steel is available in strip, coil, and sheet forms.
At Daxun Stainless Steel, we ensure full traceability of each coil through our sophisticated ERP system, covering type, specification, and origin. We champion industry anti-counterfeiting measures and excel in processing and customization technology. Our commitment to high precision and unmatched quality has set the industry benchmark. Our service philosophy encompasses robust product life cycle management, offering expert material selection and processing solutions pre-sale, stringent monitoring during sales, and comprehensive after-sales service guarantees.
Excellence in Quality, Timely Delivery, Rigorous Inspection
- Daxun undertakes a series of rigorous quality assurance tests, including flattening, pitting resistance, mechanical, hardness, material positive identification, and expansion tests. These comprehensive evaluations ensure that all materials meet the strict requirements for their intended applications.
- Throughout our production process, we meticulously measure the diameter, thickness, and surface quality of each product. Our standard delivery timeframe is 7-15 days, with some special size products extending up to 20 days.
We adhere strictly to contractual delivery timelines.
- Facilitating Third-Party Agency Inspections
- Offering Complimentary Samples for Customer Testing
- Supporting On-Site and Video Factory Inspections
Comprehensive Ordering Guidelines
When placing orders, please include details on quantity, grade, type or category, API5L reference, thickness, width, length, and any specific requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Reach out to Daxun today, and expect a prompt response to your queries.
Daxun's journey into the stainless steel industry commenced in 2003. Over the past two decades, our stainless steel materials and processing business have consistently led the charge in China's industrial sector, setting benchmarks for excellence and innovation.
For over 20 years, Daxun has been a formidable presence in the international market. By 2022, our export revenue soared past US$100 million, placing us among the elite stainless steel trade and processing companies in China. With three strategically positioned export service bases across China, we collaborate with leading engineering firms, steel mills, and global trading companies to expand our international footprint. Our commitment to enhancing service capabilities and market reach is unwavering.
Daxun International offers unparalleled stainless steel chain supermarket services, forged through enduring partnerships with numerous renowned steel mills worldwide. We boast an impressive inventory of 60,000 tons of standard stainless steel and 20,000 tons of specialty metals, including duplex steel, nickel-based alloys, and heat-resistant steel. With steadfast dedication to quality, our stainless steel materials are always genuine, adhering strictly to specifications, standards, and delivery commitments.
Equipped with advanced steel processing machinery, Daxun features 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 product.
Daxun's expertise spans over 30 industries, providing crucial services to sectors like automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. By collaborating with steel mills and prominent research institutes, we offer holistic solutions, from project design and material development to optimized manufacturing processes.
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 superior two-phase, ferritic-austenitic stainless steel enriched with 22% chromium, 3% molybdenum, and 5-6% nickel. Known as the most utilized duplex stainless steel grade, it boasts a yield strength twice that of standard austenitic grades. This alloy offers remarkable fatigue strength and outstanding resistance to stress corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion under challenging conditions.
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
- Effluent scrubbing systems
- Pulp and paper industry - Suitable 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 high chromium, molybdenum, and nitrogen content, Duplex 2205 exhibits superior corrosion resistance over 316 and 316L in most environments.
- This composition also provides exceptional resistance to pitting and crevice corrosion, even in oxidizing and acidic conditions.
- Capable of withstanding chloride stress corrosion cracking and temperatures up to approximately 302°F (150°C).
- The ferritic phase ensures excellent performance in caustic environments.
HEAT RESISTANCE
- Like other duplex stainless steels, Duplex 2205 offers commendable oxidation resistance at elevated temperatures.
- It is prone to embrittlement when exposed to temperatures above 572°F (300°C) for even brief durations. Thus, it is not recommended for use above this temperature.
WELDING CHARACTERISTICS
- Exhibits good weldability.
- Generally, welding without filler metal should be avoided to prevent excessive ferrite formation.
HEAT TREATMENT
- Annealing should be conducted within the temperature range of 1868 to 2012°F (1020 to 1100°C).
- Cannot be hardened by heat treatment, but Duplex 2205 does work-harden.
- Special measures are required to compensate for a higher coefficient of thermal expansion to prevent warping and distortion.
PROCESSING - HOT FORMING
- Most manufacturers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). For non-compact shapes, edges may be significantly cooler than the bulk, increasing the risk of cracking in cooler regions.
PROCESSING - COLD FORMING
- Duplex 2205 demonstrates good formability in various fabrications. Due to its high strength, allowances for higher spring-back are necessary even if the forming equipment is powerful enough.
Machining Excellence
Duplex 2205 stainless steel presents slightly more processing challenges compared to the 300 series austenitic stainless steels due to its requirement for higher cutting forces, thus leading to increased tool wear. Key machining guidelines include: A) Utilize powerful, rigid machines with exceptionally strong, stable mounting of tools and work pieces, B) Minimize vibration by keeping tool extension as short as possible, C) Use 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 that always ensure a depth of cut below the work-hardened layer from previous passes.
Distinctive Features of 2205 Stainless Steel Coils
- Type 2205 is a duplex (austenitic/ferritic) stainless steel, enriched with chromium, molybdenum, and nitrogen. This unique combination significantly enhances performance and corrosion resistance compared to 304 and 316 stainless steels. The microstructure, featuring a dispersed austenite/ferrite mix along with alloying elements, provides robust resistance to stress corrosion cracking, pitting, and ***-induced crevice corrosion. Alloy 2205 offers acceptable oxidation resistance up to 980°C for specific applications, although it may become brittle when exposed to temperatures between 300°C and 1000°C for extended periods. This versatile material is available in strips, coils, and sheets, suitable for a broad range of applications.
Common Surface Treatments for Stainless Steel Coils
The surface finish of 201 stainless steel coil varies based on the cold rolling processes 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 finishes:
- NO.1 Finish: This surface is achieved through hot rolling, heat treatment, and pickling of the stainless steel strip, removing black oxide scale formed during these processes. The No. 1 finish is matte and silvery white, ideal for heat-resistant and corrosion-resistant applications that do not require high surface gloss, such as in the alcohol industry, chemical industry, and for large containers.
- 2B Finish: Distinguished from the 2D surface by a light roller smoothing process, the 2B finish is brighter. The surface roughness Ra value typically ranges from 0.1 to 0.5μm. This versatile finish is highly adaptable, making it suitable for a variety of industries including chemical, papermaking, petroleum, medical, and construction, particularly building curtain walls.
- TR Hard Surface: TR stainless steel, also known as hard steel, includes grades like 304 and 301. It is used for high-strength, high-hardness applications such as railway vehicles, conveyor belts, springs, and washers. The work hardening properties of austenitic stainless steel are leveraged to enhance the strength and hardness of steel plates through cold rolling methods. To replace the smooth flatness of the 2B base surface, the hard material is gently rolled by a few percent to tens of percent, without annealing after rolling, resulting in a TR hard surface.
- Re-rolled Bright 2H: Following the rolling operation, the stainless steel strip undergoes bright annealing. Using a continuous annealing line, the strip is rapidly cooled while traveling at speeds of 60-80m/min. This process results in the bright 2H re-rolled surface finish.
- No. 4 Finish: The No. 4 surface offers an exquisite polishing effect, significantly brighter than the No. 3 finish. Achieve this by polishing the cold-rolled stainless steel plate with a 2D or 2B surface, followed by sanding with a 150-180# grit belt. The surface roughness (Ra) measures between 0.2 and 1.5μm. This versatile finish is ideal for a range of applications including restaurants, cooking equipment, medical devices, architectural decorations, containers, and more.
- HL: The HL surface, commonly known as a hairline finish, complies with the Japanese JIS standard for achieving a continuous hairline abrasive surface via a 150-240# abrasive belt. Although the Chinese GB3280 standard is less clear, HL finishes are prevalently used in architectural decorations such as elevators, escalators, and exterior walls, providing a sleek, uniform appearance.
- No. 6: The No. 6 surface is an enhanced version of the No. 4, polished further with a Tampico brush or W63 grit abrasive material as per GB2477 standards. It offers a soft metallic luster with weak reflection and no imaging, making it perfect for applications like curtain walls, tassel decorations, and cooking supplies.
- BA: The BA surface receives a bright heat treatment post cold rolling. This treatment involves annealing in a protective atmosphere to maintain the gloss of the cold-rolled surface, followed by high-precision polishing to enhance brightness. With a surface roughness of 0.05-0.1μm, the BA finish is nearly mirror-like, suitable for food utensils, household appliances, medical equipment, automotive parts, and various decorative uses.
- No. 8: Known for its mirror-like reflection and absence of abrasive particles, the No. 8 surface-also referred to as 8K board in the stainless steel deep processing industry-uses BA material for mirror processing. A simple polish results in a beautiful, reflective surface, ideal for building entrances and interior decorations.
Q1: What products can you offer?
A: We offer a broad array of steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L, the 300 and 400 series, and duplex stainless steels like 2205, 2304, 2101, 2507, among others. We also provide high-nickel alloys such as 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Absolutely. We can manufacture products tailored to your specific drawings, ensuring the utmost satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We rigorously monitor and control quality throughout the entire production process, 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 based on your requirements.
However, you will be responsible for any additional costs incurred during this period and any related differences.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We rigorously monitor and control quality throughout the entire production process, from start to finish.
Q6. How long is the delivery time?
A: Delivery time ranges from 7 to 20 working days after payment confirmation.
If your order is urgent, we will expedite the production process in our workshop to ensure timely completion.
Q7. What are your Payment Terms?
A: 100% T/T in advance or Western Union for small orders.
B: 30% T/T upfront and the remaining 70% before shipment.
C: 100% Irrevocable LC at sight for large orders.
Q8: Can you provide DDQ (Deep Drawing Quality)?
A: Yes, we can. Our material is suitable for making stainless steel pots, sinks, bowls, etc. Share your specific usage with us, and we will adjust the mechanical properties to meet your requirements.
Q9: How can I obtain a sample?
A: FREE samples are available for your evaluation and testing. For small pieces, we may cover the courier cost depending on the situation.
Q10: To which countries have you exported?
A: To date, we have exported stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many others.
Q11: How can I visit your company?
A: Take a flight to Guangzhou Baiyun International Airport, and we will pick you up from there.
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