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- ngchouhan@gmail.com / ganpatmetal03@gmail.com
Ganpat Metal manufactures and supplies Chromium-Molybdenum Alloy Steel Hex Bars conforming to ASTM A182 / ASME SA182 in Grades F5, F9, F11 Class 2, F22 Class 3, and F91. These chrome-moly alloy hex bars are specifically engineered for elevated temperature and high-pressure service in power generation boilers, petrochemical hydrotreaters, catalytic reforming units, and refinery piping.
The addition of chromium confers superior resistance to oxidation, scaling and high-temperature sulfur attack, while molybdenum enhances creep strength and prevents graphitization at temperatures up to 650°C. For supercritical steam lines, our F91 grade delivers advanced creep-strength-enhanced ferritic (CSEF) performance with micro-alloyed vanadium and niobium additions.
All alloy steel hex bars are supplied in Normalized & Tempered (N&T) condition, ultrasonically inspected, and precision machined with tight across-flats tolerances.
GM handles enquiries for Alloy Steel Hex Bars where buyers need to match hexagonal bar dimensions, across flats (AF) tolerances, and material grade to project drawings or purchase specifications. The supplied inventory covers precision cold drawn and hot rolled sizes beginning from 3 mm up to 100 mm across flats, with custom cut-to-length and surface finish options.
Grade selection should be based on the mechanical tensile properties, hardness, corrosion resistance, and chemical composition required by the project application. Buyers should also confirm the applicable standard specification (ASTM / ASME / EN), delivery condition (cold drawn, annealed, or quenched & tempered), inspection requirements, and documentation before finalizing an order.
| Parameter | Specification |
|---|---|
| Standard Specifications | ASTM A182 / ASME SA182, ASTM A276, EN 10083 |
| Available Grades | ASTM A182 F5, F9, F11 (Class 2), F22 (Class 3), F91 (Grade 91) |
| Size Range (AF) | 6 mm to 100 mm Across Flats |
| Length | 100 mm to 6000 mm (Custom cut lengths available) |
| Heat Treatment | Normalized & Tempered (N&T), Annealed, Quenched & Tempered |
| Surface Finish | Black Hot Rolled, Bright Drawn, Peeled, Polished |
| Dimensional Tolerance | ASTM A484 / EN 10278 h11 / h12 |
| 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 Hex | 6 mm to 50 mm AF | 1000 mm to 6000 mm | Cold Drawn & Tempered, h9/h11 |
| Hot Rolled Alloy Hex | 20 mm to 100 mm AF | Up to 6000 mm | Normalized & Tempered, Descaled |
| High Temp Fastener Stock | 10 mm to 65 mm AF | Cut lengths | Quenched & Tempered for Stud Bolts |
Custom dimensions, special cuts, and tailored surface conditions available on request.
Enter hex bar dimensions (across flats & length) and click Calculate to get approximate weight.
Ganpat Metal manufactures and supplies certified Alloy Steel Hex 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 |
| Size Across Flats (AF) | Required AF in mm or inches |
| Length | Standard 3m / 6m or specific cut lengths |
| Heat Treatment Condition | Normalized & Tempered / Quenched & Tempered |
| Quantity | Required quantity in kg or pieces |
| Testing | Charpy V-Notch Impact Test, Hardness Survey, UT to ASTM A388, PMI |
| Certification | EN 10204 Type 3.1 / 3.2 MTC, IBR Form III-B if boiler application |
