- 0091-022-66362797 / +91-9821025398
- ngchouhan@gmail.com / ganpatmetal03@gmail.com
Ganpat Metal manufactures and supplies Super Duplex Stainless Steel Round Bars in UNS S32750 (2507 / F53) and UNS S32760 (Zeron 100 / F55) conforming to ASTM A276 / ASME SA276 and ASTM A479. Super duplex round bars offer extreme mechanical load-bearing capacity and the highest pitting and crevice corrosion resistance among all duplex alloys, featuring a guaranteed PREN value of > 42.
Our super duplex round bars are fully solution annealed at 1080–1140°C and rapidly water quenched to prevent the formation of detrimental intermetallic phases such as sigma (σ) and chi (χ). The alloy contains 25% chromium, 4% molybdenum, and 0.28% nitrogen, providing superior resistance to warm chlorinated seawater, sour gas environments, organic acids, and marine bio-fouling.
Available in diameters from 8 mm up to 450 mm, Ganpat Metal supplies super duplex bars to offshore energy operators, subsea equipment makers, defense contractors, and desalination pump manufacturers worldwide.
GM handles enquiries for Super Duplex SS Round Bars where buyers need to match round bar diameters, machining tolerances (h9, h11, k12), and material grade to engineering drawings or purchase specifications. The supplied range covers precision cold drawn, peeled, centerless ground, and forged round bars beginning from 3 mm up to 500 mm diameter, with cut-to-size billet and pre-machined options.
Grade selection should be based on the required mechanical properties, core hardness, chemical composition, and operating temperature conditions of the application. Buyers should also confirm the applicable standard specification (ASTM / ASME / DIN / EN), delivery condition (annealed, solution treated, or quenched & tempered), NDT testing (ultrasonic / PMI), and mill documentation before finalizing an order.
| Parameter | Specification |
|---|---|
| Standard Specifications | ASTM A276 / ASME SA276, ASTM A479, ASTM A182 F53/F55, NORSOK M-630 |
| Available Grades | UNS S32750 (2507, 1.4410), UNS S32760 (Zeron 100, 1.4501) |
| Diameter Range | 8 mm to 450 mm diameter |
| Length | 100 mm to 6000 mm / Custom cut lengths |
| Heat Treatment | Solution Annealed (1080–1140°C) & Water Quenched |
| Microstructure | Super Duplex (Austenite + Ferrite ~45–55%, Free of sigma phase) |
| PREN Value | ≥ 42 (PRENw ≥ 42 for S32760) |
| Surface Finish | Bright Drawn, Smooth Peeled, Turned & Polished, Black Forged |
| Testing & Certification | ASTM G48 Method A Pitting Test at 50°C, Ferrite %, Impact (-50°C), UT, PMI |
| Documentation | EN 10204 Type 3.1 / 3.2 Mill Test Certificate, NORSOK Compliant |
Standard chemical composition limits conform to international metallurgical standards.
| Grade | C max | Cr | Ni | Mo | N | Cu | W |
|---|---|---|---|---|---|---|---|
| UNS S32750 (2507) | 0.030 | 24.0 – 26.0 | 6.0 – 8.0 | 3.0 – 5.0 | 0.24 – 0.32 | 0.50 max | — |
| UNS S32760 (Zeron 100) | 0.030 | 24.0 – 26.0 | 6.0 – 8.0 | 3.0 – 4.0 | 0.20 – 0.30 | 0.50 – 1.00 | 0.50 – 1.00 |
Minimum mechanical property requirements in designated standard delivery condition:
| Grade | Tensile Strength (min) | Yield Strength 0.2% (min) | Elongation (min) | Hardness (max) |
|---|---|---|---|---|
| UNS S32750 | 795 – 1000 MPa (116 ksi) | 550 MPa (80 ksi) | 15% | 310 HB / 32 HRC |
| UNS S32760 | 750 – 1000 MPa (109 ksi) | 550 MPa (80 ksi) | 25% | 310 HB / 32 HRC |
| Standard / Country | Designation |
|---|---|
| UNS S32750 | Werkstoff 1.4410 • EN X2CrNiMoN25-7-4 • ASTM A182 F53 • 2507 Super Duplex |
| UNS S32760 | Werkstoff 1.4501 • EN X2CrNiMoCuWN25-7-4 • ASTM A182 F55 • Zeron 100 |
| Form / Type | Size Range | Length / Dimensions | Condition / Standard |
|---|---|---|---|
| Cold Drawn Super Duplex Bar | 8 mm to 40 mm Dia | 1000 mm to 6000 mm | Cold Drawn & Annealed, h9/h11 |
| Peeled & Turned Bar | 25 mm to 160 mm Dia | Up to 6000 mm | Turned & Polished, k12/h11 |
| Forged Super Duplex Bar | 100 mm to 450 mm Dia | Up to 4500 mm | Forged, Solution Treated & Quenched |
| Cut Billets & Blocks | All Sizes | Cut-to-length | Precision cut with 100% UT certification |
Custom dimensions, special cuts, and tailored surface conditions available on request.
Enter round bar diameter & length and click Calculate to get approximate weight.
Ganpat Metal manufactures and supplies certified Super Duplex SS Round Bars for industrial buyers across India. All materials are sourced from premium quality mills, fully tested for chemistry, mechanical properties, and dimensional tolerances, and supplied with complete traceable Mill Test Certificates.
Whether you require standard stock dimensions or customized sizes, Ganpat Metal maintains deep inventories in Mumbai and provides rapid dispatch, custom cut-to-length services, and third-party inspection support.
India
UAE
Saudi Arabia
Oman
Australia
Malaysia
Singapore
Bangladesh
Egypt
Brazil
Russia
Kazakhstan
| Requirement | Details to Provide |
|---|---|
| Grade | UNS S32750 (2507) / UNS S32760 (Zeron 100) / ASTM A182 F53 / F55 |
| Standard | ASTM A276 / ASME SA276 / ASTM A479 / NORSOK M-630 |
| Diameter (mm) | Required diameter in mm with tolerance class |
| Length | Standard 3m / 6m or exact cut lengths in mm |
| Condition | Solution Annealed & Water Quenched |
| Quantity | Required quantity in kg or pieces |
| Testing | ASTM G48 Method A at 50°C (weight loss < 4.0 g/m²), Charpy impact at -50°C, UT |
| Documentation | EN 10204 Type 3.1 / 3.2 MTC with full metallurgical traceability |
