| 2507/S32750 Stainless Steel Coil Manufacturing Process |
Hot Rolled (HR) / Cold Rolled (CR) |
| 2507/S32750 Stainless Steel Coil Grades |
201 / 304 / 304L/ 2507/S32750 / 309S / 420 / 316 / 316L / 316Ti / 317L / 321 / 321H / 347 / 347H / 904L etc. |
| UNS No. - UNS S2507/S32750, 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 |
| 2507/S32750 Stainless Steel Coil Thickness |
0.6 MM TO 16 MM THICKNESS |
| 2507/S32750 Stainless Steel Coil Width |
1250 MM / 1500 MM / 2000 MM / 04 Feet / 05 Feet and Custom Cut Width as Per Requirement |
| 2507/S32750 Stainless Steel Coil Length |
2400 MM / 2420 MM / 6000 MM / 08 Feet / 10 Feet / Coil Cut and Custom Cut Length as Per Requirement |
| 2507/S32750 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. |
| 2507/S32750 Stainless Steel Coil Coating |
PVC coating Normal / Laser, Film: 100 micrometer, Color: black/white. |
| 2507/S32750 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. |
| 2507/S32750 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 |
| 2507/S32750 Stainless Steel Coil Packaging |
Loose / Carrate / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps |
| 2507/S32750 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 |
| 2507/S32750 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 steel coil fabrication services
At Jiangsu Daxun Alloy Co., Ltd., we pride ourselves on being a premier supplier of 2507 Duplex Steel Coils in China. Our offerings range from 0.5mm to 3.16mm in thickness, providing cost-effective alternatives to alloys like 904L or 6% molybdenum super austenitic stainless steel. The TISCO 2507 Stainless Steel Coil is a super duplex stainless steel featuring a robust composition of 25% chromium, 4% molybdenum, and 7% nickel. Engineered for rigorous applications, it excels in chemical processing, petrochemical, and seawater equipment due to its remarkable strength and corrosion resistance. Its resistance to chloride stress corrosion cracking, high thermal conductivity, and low thermal expansion make it an optimal choice. Additionally, its high chromium, molybdenum, and nitrogen content ensures superior resistance to pitting, crevice, and general corrosion.
At Daxun Stainless Steel, we guarantee complete traceability of each coil through our ERP system, detailing type, specification, and origin. We champion industry anti-counterfeiting measures and leverage advanced technology for processing and customization, setting the bar for precision and quality. Our commitment extends through the entire product lifecycle, offering expert material selection and processing solutions pre-sale, stringent monitoring during sales, and comprehensive service guarantees post-sale.
Quality, Delivery, Inspection
- Daxun upholds rigorous quality assurance protocols, including flattening tests, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests. These thorough evaluations ensure our materials meet the highest standards for their intended applications.
- Throughout production, we meticulously measure product diameter, thickness, and surface quality. Our standard delivery timeline is 7-15 days. For special sized products, delivery may extend to 20 days.
Our delivery schedules adhere strictly to contract terms.
- We welcome third-party inspections at our factory.
- We provide free samples for customer testing.
- We offer on-site or video inspections of our facilities.
Ordering Information
To place an order, please specify quantity, grade, type or category, API5L reference, thickness, width, length, and any relevant attachments or additional requirements regarding chemical composition, mechanical properties, heat treatment, extra testing, manufacturing process, surface coating, or end finishing. Contact Daxun now for prompt email responses.
Daxun's journey in the stainless steel industry began in 2003. For two decades, we have rapidly advanced, positioning ourselves at the pinnacle of China's stainless steel materials and processing sector.
For over 20 years, Daxun has been a stalwart in the overseas market. In 2022, our export revenue surpassed an impressive US$100 million, ranking us among China's elite stainless steel trade and processing entities. With three strategically positioned export service bases in China, we collaborate with engineering companies, steel mills, and international trading firms to enhance our global reach. Our commitment is unwavering as we continually upgrade our service capabilities to meet international standards.
Daxun International offers comprehensive stainless steel chain supermarket services, maintaining long-term partnerships with renowned 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. At Daxun International, we guarantee impeccable quality with no compromises. Each product adheres strictly to the stipulated 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 excels in various processing techniques such as cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
Our services span over 30 diverse industries, from automobiles and home appliances to new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. In collaboration with steel mills and research institutes, Daxun offers integrated solutions encompassing project design, material development, and process optimization for manufacturing.
25072507 Stainless Steel Coil - Chemical Composition
| Grade |
Super Duplex 2507 |
| UNS Designation |
S32750 |
| Carbon (C) Max. |
0.03 |
| Manganese (Mn) Max. |
1.2 |
| Phosphorous (P) Max. |
0.035 |
| *** (S) Max. |
0.02 |
| Silicon (Si) Max. |
0.8 |
| Chromium (Cr) |
24.0-26.0 |
| Nickel (Ni) |
6.0-8.0 |
| Molybdenum (Mo) |
3.0-5.0 |
| Nitrogen (N) |
0.24-0.32 |
| Iron (Fe) |
Bal. |
| Copper (Cu) |
0.5 |
| Other Elements |
- |
2507 Stainless Steel Coil - Mechanical Properties
| Physical Properties of Super Duplex 2507 Alloys in the Annealed Condition at -20°F to +100°F |
| |
|
|
Tensile Strength |
Yield Strength |
|
|
|
|
|
|
| Alloy |
UNS Designation |
Spec. |
psi |
MPa |
ksi |
psi |
MPa |
ksi |
Elongation in 2 in. (min.) % |
Grain Size Req. |
Max. Hardness |
Modulus of Elasticity (x106 psi) |
Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) |
Thermal Conductivity (BTU-in/ ft2-h-°F) |
| Super Duplex 2507 |
S32950 |
A789, A790 |
100,000 |
690 |
100 |
70,000 |
485 |
70 |
20 |
- |
30.5 Rc |
- |
- |
- |
| Super Duplex 2507 |
S32750 |
A789, A790 |
116,000 |
800 |
116 |
80,000 |
550 |
80 |
15 |
- |
32 Rc |
27.5 |
7.2 |
98 |
2507 Stainless Steel Coil - Physical Properties
| Density, lb/in3 |
0.28 |
| Modulus of Elasticity, psi |
29.0x 106 |
| Coefficient of Thermal Expansion, 68-212˚F, /˚F |
7.5 x 10-6 |
| Thermal Conductivity, Btu/ft hr ˚F |
8 |
| Specific Heat, Btu/lb ˚F |
0.12 |
| Electrical Resistivity, Microhm-in |
31.5 |
What Is Duplex 2507 Stainless Steel?
Duplex 2507 stainless steel is an ultra-premium super duplex alloy, characterized by its exceptionally low carbon content (up to 0.03%), and a robust combination of chromium (~25%), nickel (~7%), and molybdenum (~4%). Specifically engineered to meet the rigorous demands of applications that require superior strength and outstanding resistance to corrosion, this marvel of metallurgy finds its place in high-stress environments such as chemical processing equipment, the petrochemical sector, and seawater machinery. Its extraordinary resistance to chloride-induced stress corrosion cracking, coupled with its high chromium, molybdenum, and nitrogen content, grants it unparalleled protection against pitting, crevice, and general corrosion.
How Is Duplex 2507 Stainless Steel Made?
- The production of Duplex 2507 stainless steel mirrors that of other contemporary high-alloy steels. The journey begins in an electric arc furnace, where scrap steel is melded with specific alloys. The molten steel is then transported to an AOD (argon oxygen decarburization) converter. Here, critical processes such as decarburization, sulfur refinement, and the removal of dissolved gases are meticulously carried out, ensuring the steel attains its superior quality.
- During the AOD process, nitrogen is carefully incorporated into the steel. The molten metal then proceeds to the ladle furnace, where inclusions are precisely adjusted, setting the stage for the next phase of production.
- Once these initial stages are completed, the molten steel is funneled into the casting phase, producing either substantial ingots or continuously cast blooms. These solid blooms or ingots undergo further refinement through reheating, followed by forging or rolling to the desired thickness. To ensure a uniform internal structure, the steel is subjected to solution annealing and then rapidly cooled using a water quenching process.
- Duplex 2507 pipe materials can be crafted via hot or cold forming processes. For hot forming, the temperature range is maintained between 1024 °C and 1232 °C. After hot forming, the material undergoes solution annealing at a minimum of 1052-1125 °C, followed by a swift water quench. Cold forming methods such as bending, deep drawing, extruding, and pressing demand subsequent heat treatment, including solution annealing and quenching, to achieve the desired mechanical properties.
How Does Duplex 2507 Stainless Steel Differ From Duplex Steel?
- Duplex 2507 stainless steel stands out as a super duplex alloy, belonging to the elite class of duplex stainless steels. These steels are notable for their unique microstructure, which harmoniously blends ferrite and austenite in nearly equal parts. This exceptional combination endows duplex stainless steels with remarkable corrosion resistance and robust mechanical strength. However, the degree of corrosion resistance can vary based on the specific grade and alloy composition. Duplex stainless steels are categorized into four distinct groups based on their PREN (Pitting Resistance Equivalent Number) range, with super duplex stainless steel boasting a PREN range of 38 to 45.
What Are the Uses of Duplex 2507 Stainless Steel?
Common applications of Duplex 2507 stainless steel include:
- Desalination plants.
- Oil and gas industry equipment, such as offshore platforms, pipelines, and well casings.
- Chemical processing equipment, ideal for handling corrosive substances.
- Pulp and paper industry machinery, especially for bleaching processes.
- Petrochemical industry components, including PVC strippers.
- Water desalination infrastructure.
- Power industry equipment like flue gas desulfurization (FGD) systems.
- Marine hardware, including ship propellers and shafts.
- Pollution control devices such as scrubbers.
- Fittings are essential components for seamlessly connecting and regulating the flow of fluids within pipelines and systems. This comprehensive range includes elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples, among others.
What Are the Advantages of Using Duplex 2507 Stainless Steel?
The advantages of using Duplex 2507 stainless steel include:
- Duplex 2507 boasts exceptional resistance to pitting corrosion, with a PREN of up to 43, surpassing even stainless steel grades like 254SMO. Additionally, it offers outstanding resistance to various other forms of corrosion, including Stress Corrosion Cracking (SCC), crevice corrosion, and general corrosion. These attributes collectively make Duplex 2507 an adaptable and reliable solution for a multitude of applications in harsh environments.
- 2507 provides double the yield strength of standard 300 class stainless steel. This enhanced strength translates to the use of thinner steel sections, significantly reducing material costs for equipment under similar load conditions.
- With double the yield and tensile strength of typical stainless steel, Duplex 2507 offers significantly improved wear resistance.
Standards
- ASTM/ASME ...…. A240 - UNS S32750
EURONORM...... 1.4410 - X2 Cr Ni MoN 25.7.4
AFNOR........... Z3 CN 25.06 Az
Q1: What products can you offer?
A: We provide a wide range of steel types, including general steel such as 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series, as well as duplex stainless steel like 2205, 2304, 2101, 2507, and 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 according to your drawings to ensure they meet your utmost satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We consistently place significant emphasis on quality control throughout the entire production process.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can accommodate changes in packaging and transportation to suit your preferences.
However, you will be responsible for any additional costs incurred during this period, including any price differences.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We consistently place significant emphasis on quality control throughout the entire production process.
Q6. How long is the delivery time?
A: 7~20 working days after confirming the payment.
If the order is urgent, we will expedite production to meet your needs promptly.
Q7. What is your Payment?
A: 100% T/T advance, Western Union (For Small Orders)
B: 30% T/T and balance 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 material is well-suited for products such as stainless steel pots, sinks, and bowls. Inform us of your specific application, and we will adjust the mechanical properties to meet your requirements.
Q9: How to get a sample?
A: FREE samples are available for your evaluation and testing. If you need a small piece, we can cover the courier cost, depending on the specifics.
Q10: To which countries have you exported your products?
A: To date, we have successfully exported stainless steel materials to the following countries: Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many others.
Q11: What is the best way to visit your company?
A: You can fly to Guangzhou Baiyun International Airport, and we will arrange to pick you up from there.
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