What is Super Duplex 2507 round bar?
Super Duplex Steel 2507 (UNS S32750) round bar is a high-strength, corrosion-resistant stainless steel frequently utilized in demanding environments such as offshore oil and gas operations, chemical processing, and seawater systems. Product forms include round bars, square bars, hexagonal bars, flat bars, rectangular bars, and hollow bars. GNEE Stainless Steel offers a variety of surface finishes-including bright, polished, black, and centerless ground-and manufacturing processes encompassing hot rolling, cold drawing, and forging. Commonly applicable standards include ASTM A276 and A479.
What is the difference between Duplex 2205 and Super Duplex 2507 bars?
In terms of mechanical properties, Duplex Stainless Steel 2205 bars possess a yield strength of no less than 450 MPa and a tensile strength of no less than 620 MPa. Super Duplex Stainless Steel 2507 bars, conversely, exhibit superior strength, featuring a yield strength of no less than 550 MPa and a tensile strength of no less than 800 MPa. Due to its higher alloy content, 2507 is more expensive. 2205 is suitable for the manufacture of chemical equipment and heat exchangers, whereas 2507 serves as the ideal material for facilities such as offshore oil platforms and subsea pipelines.
2507 Super Duplex Round Bar Specification Chart
| Specification | ASTM A276/ A479 and ASME SA276/ SA479 |
|---|---|
| Standard | JIS, ASTM, API, AISI, ASME, EN, DIN, BS |
| Sizes in MM | 3 To 450 |
| Length in Meter | 3 to 6 or Custom Lengths |
| Flat Bar Sizes in MM | 3*20*20 to 12*100*100 |
| Square Bar Sizes in Mm | 4*4 To 100*100 |
| Finish | Matt Finish, Grinding, BA Finish, Bright Polished, Black, NO.4 Finish, Centreless Ground, Polish, Rough Turned |
| Form | Rings, Ingot, I/H Bar, Rod, Channel, Billet, Square, Profiles, T Bar, Half Round Bar, Half Round, Threaded, Round, Triangle, Hollow, Blocks, Angle, Forging, Rectangle, Round Rod, Flat 2507 round bar suppliers and Manufacturer |
| tolerance of bar | H 11, H 8, K 10, H 13, K 11, H 9, H 10, H 12, K 12, K9 or clients requirements |
| Condition | Sheared & Edged, Cold Drawnd, Polished Cold Drawn, Rolled Flat, Annealed 2507 round bar suppliers and Manufacturer |
2507 round bar Chemical Properties
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| Super Duplex S32750 Round Bar | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
Mechanical Properties of Super Duplex 2507 round bar
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
|---|---|---|---|---|
| Super Duplex S32750 Round Bar | 7.8 | 0.281 | 1350 | 2460 |
SAF 2507 Round Bar Tolerance
| Diameter in MM | Tolerances in MM |
|---|---|
| 50 To 70 | -0/+0.19 |
| 20 To 35 | -0/+0.15 |
| 100 To 250 | -0/+1.50 |
| 40 To 45 | -0/+0.16 |
| 75 To 95 | -0/+1.00 |
Alloy 2507 Bright Bar Temperature Limit
| Bar Grade | Temperature |
| Super Duplex 2707 HD | 1080 To 1120°C/ 1976 To 2048°F |
| Super Duplex 2507 | 1050 To 1125°C/ 1922 To 2057°F |
Super Duplex 2507 round bar price per kg
The price of Super Duplex Steel 2507 round bars typically fluctuates between approximately RMB 30 and 150 per kilogram, depending on factors such as size, surface finish, and the supplier. For standard industrial specifications, the price of this highly corrosion-resistant alloy generally remains in the range of approximately RMB 60 to 85 per kilogram.
If you have project-specific requirements for 2507 (1.4410) stainless steel bars, we welcome your orders. GNEE maintains a substantial inventory of popular products for you to choose from; for detailed chemical compositions or free samples, please contact our factory immediately. We offer competitive pricing and exceptional service.
Mail:es@gescosteel.com
GNEE ensures the integrity of S32750 round bars through 100% PMI chemical validation (PREN ≥ 41) and microstructure analysis to maintain a strict 50:50 phase balance. Every bar undergoes EN 10228-3 Class 3 Ultrasonic Testing and mechanical verification (Yield Strength ≥ 550 MPa).
Our logistics utilize precision-ground finishing (Tolerance h9-h11) and seaworthy packaging with reinforced steel-strapped wooden crates and moisture-proof VCI film, preventing mechanical impact and salt-air corrosion during transoceanic shipping.
