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Ganpat Metal manufactures and supplies certified Super Duplex Stainless Steel UNS S32750 (2507) Round Bars conforming to ASTM A276 / ASME SA276, ASTM A479, ASTM A182 F53. UNS S32750 (2507) is a 25% chromium super duplex alloy with high molybdenum and nitrogen additions. With a Pitting Resistance Equivalent Number (PREN) exceeding 42, it provides extraordinary resistance to pitting, crevice corrosion and stress corrosion cracking in aggressive seawater and acid environments.
Our UNS S32750 round bars are produced under rigorous quality management, supplied in cold drawn, peeled, centerless ground, or forged rough-turned condition. Each bar is carefully heat treated to achieve optimum grain structure, superior straightness (≤ 1 mm/m), and uniform mechanical strength suitable for high-speed machining, valve components, pump shafts, and structural engineering fasteners.
We maintain extensive inventories from 3 mm to 500 mm diameter in standard mill lengths and custom cut-to-length billets with complete EN 10204 Type 3.1 Mill Test Certificates and third-party inspection support.
GM handles enquiries for UNS S32750 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 |
| Grade Designation | UNS S32750 (UNS S32750 / W.Nr. 1.4410 / F53) |
| Diameter Range | 3 mm to 500 mm (1/8" to 20" diameter) |
| Length | 100 mm to 6500 mm / Custom cut-to-length |
| Manufacturing Process | Hot Rolled, Cold Drawn, Forged, Peeled, Centerless Ground |
| Condition & Temper | Solution Annealed, Normalized & Tempered / Quenched & Tempered |
| Surface Finish | Bright Drawn (h9/h11), Ground (h8), Smooth Turned, Black |
| Dimensional Tolerance | ASTM A484 / EN 10278 (h8, h9, h11, k12) |
| Testing & Certification | 100% PMI, Tensile & Yield, Hardness, Ultrasonic Testing (UT) |
| Documentation | EN 10204 3.1 / 3.2 Mill Test Certificate, NABL Accredited Lab Report |
Standard chemical composition limits conform to international metallurgical standards.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Chromium (Cr) | 24.00 – 26.00 |
| Nickel (Ni) | 6.00 – 8.00 |
| Molybdenum (Mo) | 3.00 – 5.00 |
| Nitrogen (N) | 0.24 – 0.32 |
| Copper (Cu) | 0.50 max |
| Manganese (Mn) | 1.20 max |
| Silicon (Si) | 0.80 max |
| Iron (Fe) | Balance |
Minimum mechanical property requirements in designated standard delivery condition:
| Property | Value (Solution Annealed) |
|---|---|
| Tensile Strength (min) | 795 – 1000 MPa (116 ksi) |
| Yield Strength 0.2% (min) | 550 MPa (80 ksi) |
| Elongation in 2" (min) | 15% |
| Hardness (Brinell max) | 310 HB |
| PREN Value | ≥ 42 |
| Density | 7.82 g/cm³ |
| Standard / Country | Designation |
|---|---|
| ASTM / ASME | A276 / A479 S32750, A815 WPS32750 |
| UNS | S32750 |
| Werkstoff Nr. | 1.4410 |
| EN / DIN | X2CrNiMoN25-7-4 |
| Forging Grade | ASTM A182 F53 |
| Common Name | 2507 Super Duplex |
| Form / Type | Size Range | Length / Dimensions | Condition / Standard |
|---|---|---|---|
| Cold Drawn Bright Bar | 3 mm to 65 mm Dia | 1000 mm to 6000 mm | Cold Drawn, h9/h11, Annealed |
| Peeled & Turned Bar | 20 mm to 160 mm Dia | Up to 6000 mm | Peeled & Polished, k12/h11 |
| Hot Rolled Black Bar | 20 mm to 200 mm Dia | Up to 6000 mm / Random | Hot Rolled, Annealed & Pickled |
| Forged Rough Turned Bar | 100 mm to 500 mm Dia | Up to 5000 mm | Forged, Solution Treated & Quenched |
| Precision Centerless Ground | 5 mm to 100 mm Dia | Up to 4000 mm | Ground Finish, h8/h9, Ra < 0.4 µm |
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 UNS S32750 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 & Material | Super Duplex Stainless Steel UNS S32750 (2507) (UNS S32750 / W.Nr. 1.4410 / F53) |
| Standard | ASTM A276 / ASME SA276, ASTM A479, ASTM A182 F53 |
| Diameter (mm) | Required diameter in mm or inches with tolerance class |
| Length | Standard 3000 mm / 6000 mm or specific cut-to-length in mm |
| Delivery Condition | Cold Drawn / Peeled / Centerless Ground / Forged Rough Turned |
| Quantity | Required quantity in kg, meters, or number of bars |
| Testing Requirements | PMI, Ultrasonic Testing (UT), Hardness, Tensile, Third-Party Inspection |
| Documentation | EN 10204 3.1 / 3.2 MTC with full chemical and mechanical data |
