Duplex 2507/S32750 Stainless Steel Bars and Round Bars China Supplier
Leading stainless steel rod and bar Suppliers in China
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- Daxun Alloy offers Duplex 2507 in Round Bar and Flat Bar forms
- Available in cold rolled and hot rolled options
- Composition: 25% chromium, 4% molybdenum, 7% nickel
- High strength and excellent corrosion resistance
- Used in chemical processing, petrochemical, and seawater equipment
- Resistant to chloride stress corrosion cracking
- Good thermal properties, including low thermal expansion, making it suitable for high-temperature applications
Global leader in stainless rod and Round Bar fabrication services
GENERAL PROPERTIES
Duplex 2507 (UNS S32750) is a super duplex stainless steel bar. Its composition includes 25% chromium, 4% molybdenum, and 7% nickel. This alloy excels in challenging environments, offering remarkable strength and corrosion resistance. It’s the go-to choice for chemical processing and petrochemical industries. Seawater equipment also benefits from its exceptional properties. Duplex 2507 stands strong against chloride stress corrosion cracking. Its thermal properties are impressive, with high conductivity and low thermal expansion, making it ideal for high-temperature applications. The alloy’s unique blend of elements ensures top-notch corrosion resistance. For tough conditions demanding both strength and durability, Duplex 2507 delivers.
Our network of service centers stock stainless steel bar products for fast, ready supply of bar in common sizes and alloys.We also produce custom-sized stainless steel rods and can arrange inventory schedules for quick turnaround in a timely manner if quantities are below factory minimums.Daxun Alloys stocks stainless steel round bars with diameters ranging from 1/16″ to 26″. Round bars are available in nearly every grade of stainless steel, including 302, 303, 304/L, 309/S, 310/S, 316/L, 317/L, 321, 321/H, 347, 347H, 410, 416, 420, 440C, 17-4PH, Duplex 2205, and Alloy 20. Heat treated stainless steel round bars are offered in 17-4PH, H900 temper (on request), H1025, H1150, Double H1150, and H1150M. Other heat-treated tempers can be manufactured upon request. We stock the following 400 series stainless steels: 410, 430, and 416. We also carry 303, 304, and 316/L precision and bearing quality stainless steel round bars. The majority of our inventory consists of our unique machined bar grades: stainless steel round bars that are melted to consistent standards to increase machinability and lower total cost per component. Our stainless steel bar processing machinery allows Daxun Alloys to produce to our customers’ exact specifications.
Data
- Parameter
- Ingredients
- Mechanical Properties
- PHYSICAL PROPERTIES
- All equivalent
- Types
| Product Parameters: Stainless Steel rod | |
| Specifications | ASTM A276, ASME SA276 / ASTM A479 ASME SA479 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Duplex 2507- S32750 Round Bars | Outside Diameter in the range of 4mm to 500mm |
| Duplex 2507- S32750 Round Bars | Outside Diameter in the range of 4mm to 100mm |
| Duplex 2507- S32750 Round Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Grade | Super Duplex 2507 |
| UNS Designation | S32750 |
| Carbon (C) Max. | 0.03 |
| Manganese (Mn) Max. | 1.2 |
| Phosphorous (P) Max. | 0.035 |
| Sulphur (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 | — |
| 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 |
| 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 |
| Super Duplex 2507 Product Range | |||
| Alloy | UNS Designation | Werkstoff NR. | Specifications* |
| Super Duplex 2507 | S32750 | 1.4410 | A/SA789, A/SA790 |
| Stainless Steel 2507/S32750 Bright Bar | SS 2507/S32750 Bright Bar |
| 2507/S32750 SS Bright Bar | |
| Stainless Steel 2507/S32750 Bright Bar | |
| UNS S2507/S3275000 SS Bright Bar | |
| WERKSTOFF NR. 1.4410 Bright Bar | |
| ASTM A276 2507/S32750 Stainless Steel Bright Bar | |
| Stainless Steel 2507/S32750 Hex Bar | SS 2507/S32750 Hex Bar |
| 2507/S32750 SS Hexagonal Bar | |
| 2507/S32750 Stainless Steel Hex Bar | |
| UNS S2507/S3275000 SS Hexagonal Bar | |
| ASTM A276 2507/S32750 Stainless Steel Hex Bar | |
| Stainless Steel 2507/S32750 Square Bar | SS 2507/S32750 Square Bar |
| 2507/S32750 SS Square Bars | |
| 2507/S32750 Stainless Steel Square Bar | |
| UNS S2507/S3275000 SS Square Bar | |
| WERKSTOFF NR. 1.4410 Square Bar | |
| ASTM A479 2507/S32750 Stainless Steel Square Bars | |
| Stainless Steel 2507/S32750 Rectangular Bar | SS 2507/S32750 Rectangular Bar |
| 2507/S32750 SS Rectangular Bars | |
| 2507/S32750 Stainless Steel Rectangular Bar | |
| UNS S2507/S3275000 SS Rectangular Bars | |
| WERKSTOFF NR. 1.4410 Rectangular Bar | |
| ASTM A276 2507/S32750 Stainless Steel Rectangular Bar | |
| Stainless Steel 2507/S32750 Flat Bars | SS 2507/S32750 Flat Bar |
| 2507/S32750 SS Flat Bars | |
| 2507/S32750 Stainless Steel Flat Bars | |
| UNS S2507/S3275000 SS Flat Bars | |
| WERKSTOFF NR. 1.4410 Flat Bars | |
| ASTM A276 2507/S32750 Stainless Steel Flat Bars | |
| Stainless Steel 2507/S32750 Polished Bar | SS 2507/S32750 Polished Bar |
| 2507/S32750 SS Polished Bars | |
| 2507/S32750 Stainless Steel Polished Bar | |
| UNS S2507/S3275000 SS Polished Bars | |
| WERKSTOFF NR. 1.4410 Polished Bar | |
| ASTM A476 2507/S32750 Stainless Steel Polished Bar | |
| Stainless Steel 2507/S32750 Threaded Bar | SS 2507/S32750 Threaded Bar |
| 2507/S32750 SS Threaded Bars | |
| 2507/S32750 Stainless Steel Threaded Bar | |
| UNS S2507/S3275000 SS Threaded Bar | |
| WERKSTOFF NR. 1.4410 Threaded Bar | |
| ASTM A276 2507/S32750 Stainless Steel Threaded Bar |
Choose Daxun and make your customers satisfied.
Quick response
We provide timely and fast delivery of 2507 stainless steel bars for customers with urgent needs. Behind the speed is the system support from information flow to logistics and capital flow. For example, in terms of information flow, Daxun’s order data is pushed to the logistics system in real time, and the data is seamlessly connected; in terms of logistics, the processing center is close to ports and rivers and seas, with reasonable scheduling, rapid response, storage and transportation linkage, and efficient loading, ensuring that the task is completed on time.
Daxun Advantages
- Varieties: We offer a wide range of sizes and grades, including 300 series, 400, 600 series, and more.
- Flexibility: Whether you need hot-rolled or cold-drawn bars, our stainless steel bar lengths are designed to meet your specific project requirements.
- Quality Standards: 2507 Stainless Steel Rod meet strict ASTM, ISO9001, GB, NSF/ANSI standards to ensure reliability and performance.
- Custom Orders: Looking for special sizes of stainless steel bars? We offer a variety of stainless steel bar customization options with competitive prices and convenient online ordering.
2507 Stainless Steel Rod packaging
We pay attention to every process to ensure quality. The 2507 round bar packaging we usually adopt is to pack the stainless steel round bars with environmentally friendly plastic bags and then put them into fumigation-free wooden boxes or wooden pallets. Customized packaging, such as OEM, can also be negotiated. We provide almost everything to meet your round bar packaging requirements. We attach great importance to packaging. The round bars are packed in wooden corrugated boxes, wrapped with plastic packaging and bubble film on the outside.
Quality, delivery, inspection
- Daxun also conducts several quality assurance tests. These tests include flattening test, pitting and resistance test, mechanical test, hardness test, material positive identification, expansion test, etc. All these tests ensure that the material is suitable for the required application.
- During the production process, we measure the diameter, thickness, and surface of the product. Our standard delivery time is 7-15 days, except for some special size products, our delivery time will increase to 20 days.
Our delivery time is strictly in accordance with the contract. - Support customer third-party agencies to go to the factory for inspection
- Support free samples to customers for testing
- Support on-site or video factory inspection
Technical Support
If you need any additional technical assistance, our resident metallurgist and knowledgeable staff will be pleased to help. Additionally, Daxun boasts a certified testing laboratory—a first in the multi-metal and plastic inventory industry. This, in our opinion, demonstrates our unwavering dedication to quality and our philosophy as a full-service supplier.
2507 Stainless Steel Rod Ordering Information
2507 Round Bar Purchase orders shall include quantity, PSL grade, type or category, API5L reference, diameter, surface finish, length and any applicable attachments or additional requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface finish or end treatment. Bars are solution bright annealed.
2507/S32750 Stainless Steel Rod Features
Daxun Alloy Let your brand improve rapidly
- Gallery
- Delivery State
- Age Hardening
| Delivery State Choice | Surface Condition |
| Forged | Black |
| Polished | |
| Hot Rolled | Black |
| Polished | |
| Bright | |
| Pickled | |
| Cold Drawn | Polished |
| Bright | |
| Note: | |
| 1. If you require different deliver state than the above listed, kindly confirm with us. | |
| 2. In case of any enquiry or order, please kindly let us know any extra requirement not indicated here. | |
| Material in the solution annealed condition may be age hardened as follows:-*Denotes Double Overaged | ||||||||||||
| Condition | H900 (H480) | H925 (H495) | H1025 (H550) | H1075 (H580) | H1100 (H595) | H1150 (H620) | H1150M (H620M)* | Plus | H1150D (H620D)* | Plus | ||
| Heat to | ±15oF | 900oF | 925 oF | 1025oF | 1075oF | 1100oF | 1150oF | 1400oF | 1150oF | 1150oF | 1150oF | |
| ±9oC | 480oC | 495oC | 550oC | 580oC | 595oC | 620oC | 760oC | 620oC | 620oC | 620oC | ||
| Hold for Hours | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | ||
| Cool to Below | Air | Air | Air | Air | Air | Air | Air | Air | Air | Air | ||
| 90oF (32oC) | ||||||||||||
Types of 2507/S32750 Stainless Steel Rods (6)
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Daxun Precision ground rods (bright finish) are passed through a grinding machine to achieve precise dimensions, resulting in a bright surface.
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Cold drawn round bar (bright) is made by cold drawing equipment to obtain a bright surface, which is more suitable for small size stainless steel bars.
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Daxun Hot rolled stainless steel round bar (black skin) is produced by hot rolling extrusion machine and annealed, without polished round bar surface.
Information available for reference and download
Stainless Steel Rod Production
Daxun is a trustworthy stainless steel rod and bar manufacturer
As a professional manufacturer, Daxun ensures that all the products we produce are of high quality. Therefore, we ensure that all stainless rod are certified by ISO9001, SGS, CE, OQC and more international quality standards.We also have strict quality control to ensure that the 2507 Stainless Steel Rod have less defects. At Daxun, rest assured that all products are durable, high quality and high performance.
Recent hot case projects and products
We can provide 2507 Stainless Steel Rod samples for you to check the quality. Sample is free and you just pay the freight.
We’ve exported to more than 42 countries, such as Canada, Chile, Kuwait, Germany, South Korea, Saudi Arabia, Singapore etc.
Our MOQ is 1 ton for 2507 Stainless Steel Rod.
Trial orders can be delivered within a week. For regular orders, it takes two weeks roughly.