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Ganpat Metal manufactures and supplies Chromium-Molybdenum Alloy Steel Round Bars conforming to ASTM A182 / ASME SA182 in Grades F5, F9, F11 Class 2, F22 Class 3, and F91. These chrome-moly round bars are engineered for high-temperature and high-pressure service in power plant steam turbines, superheater headers, petrochemical furnaces, and refinery process lines.
The addition of chromium provides high-temperature resistance to oxidation, scaling, and corrosion from sulfur compounds, while molybdenum enhances creep strength and prevents temper embrittlement up to 650°C. For advanced power generation, our Grade F91 CSEF steel provides enhanced creep rupture life, allowing significant reduction in component thickness.
Supplied in normalized and tempered (N&T) condition, our alloy steel round bars range from 10 mm to 500 mm in diameter with certified mechanical and ultrasonic testing.
GM handles enquiries for Alloy Steel 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 A182 / ASME SA182, ASTM A276, EN 10083-3 |
| Available Grades | ASTM A182 F5, F9, F11 (Class 2), F22 (Class 3), F91 (Grade 91) |
| Diameter Range | 10 mm to 500 mm diameter |
| Length | 100 mm to 6500 mm / Custom cut lengths |
| Heat Treatment | Normalized & Tempered (N&T), Quenched & Tempered (Q&T), Annealed |
| Surface Finish | Black Hot Rolled, Smooth Turned, Centerless Ground, Rough Turned |
| Testing & Certification | Elevated Temperature Tensile, Impact, Hardness, PMI, UT |
| Documentation | EN 10204 Type 3.1 / 3.2 Mill Test Certificate, IBR Form III-B |
Standard chemical composition limits conform to international metallurgical standards.
| Grade | C | Cr | Mo | Mn | Si | Other |
|---|---|---|---|---|---|---|
| F5 (5Cr-0.5Mo) | 0.15 max | 4.00 – 6.00 | 0.44 – 0.65 | 0.30 – 0.60 | 0.50 max | P/S 0.030 max |
| F9 (9Cr-1Mo) | 0.15 max | 8.00 – 10.00 | 0.90 – 1.10 | 0.30 – 0.60 | 0.50 – 1.00 | P/S 0.030 max |
| F11 Cl.2 (1.25Cr-0.5Mo) | 0.10 – 0.20 | 1.00 – 1.50 | 0.44 – 0.65 | 0.40 – 0.65 | 0.50 – 0.80 | P/S 0.030 max |
| F22 Cl.3 (2.25Cr-1Mo) | 0.05 – 0.15 | 2.00 – 2.50 | 0.87 – 1.13 | 0.30 – 0.60 | 0.50 max | P/S 0.030 max |
| F91 (9Cr-1Mo-V-Nb) | 0.08 – 0.12 | 8.00 – 9.50 | 0.85 – 1.05 | 0.30 – 0.60 | 0.20 – 0.50 | V 0.18-0.25, Nb 0.06-0.10 |
Minimum mechanical property requirements in designated standard delivery condition:
| Grade | Tensile Strength (min) | Yield Strength 0.2% (min) | Elongation (min) | Hardness (max) |
|---|---|---|---|---|
| F5 | 415 MPa (60 ksi) | 205 MPa (30 ksi) | 30% | 217 HB max |
| F9 | 585 MPa (85 ksi) | 380 MPa (55 ksi) | 20% | 241 HB max |
| F11 Class 2 | 485 MPa (70 ksi) | 275 MPa (40 ksi) | 20% | 201 HB max |
| F22 Class 3 | 515 MPa (75 ksi) | 310 MPa (45 ksi) | 20% | 217 HB max |
| F91 | 585 – 760 MPa (85–110 ksi) | 415 MPa (60 ksi) | 20% | 248 HB max |
| Standard / Country | Designation |
|---|---|
| ASTM A182 F5 | UNS K41545 • Werkstoff 1.7362 • 12CrMo19-5 • 5Cr-0.5Mo |
| ASTM A182 F9 | UNS K90941 • Werkstoff 1.7386 • X12CrMo9-1 • 9Cr-1Mo |
| ASTM A182 F11 Cl.2 | UNS K11572 • Werkstoff 1.7335 • 13CrMo4-5 • 1.25Cr-0.5Mo |
| ASTM A182 F22 Cl.3 | UNS K21590 • Werkstoff 1.7380 • 10CrMo9-10 • 2.25Cr-1Mo |
| ASTM A182 F91 | UNS K90901 • Werkstoff 1.4903 • X10CrMoVNb9-1 • Grade 91 |
| Form / Type | Size Range | Length / Dimensions | Condition / Standard |
|---|---|---|---|
| Cold Drawn Alloy Bar | 10 mm to 50 mm Dia | 1000 mm to 6000 mm | Cold Drawn, Normalized & Tempered |
| Peeled / Turned Bar | 25 mm to 160 mm Dia | Up to 6000 mm | Turned & Polished, h11/k12 |
| Forged Rough Turned Bar | 100 mm to 500 mm Dia | Up to 5000 mm | Forged, Normalized & Tempered |
| Billet Cut Pieces | All Sizes | Cut-to-length | Deburred ends, Ready to machine |
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 Alloy Steel 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 | ASTM A182 F5 / F9 / F11 Class 2 / F22 Class 3 / F91 |
| Standard | ASTM A182 / ASME SA182 |
| Diameter (mm) | Required diameter in mm with tolerance |
| Length | Standard 3m / 6m or specific cut lengths |
| Heat Treatment | Normalized & Tempered (N&T) / Quenched & Tempered (Q&T) |
| Quantity | Required quantity in kg, meters, or pieces |
| Testing | Tensile, Charpy Impact, Hardness, UT to ASTM A388, PMI |
| Certification | EN 10204 Type 3.1 / 3.2 MTC, IBR Form III-B if requested |
