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Ganpat Metal manufactures and supplies certified Alloy Steel F91 / WP91 (Grade 91) Hex Bars conforming to ASTM A182 F91 / ASME SA182. Alloy Steel F91 (9Cr-1Mo-V-Nb) is an advanced creep-strength-enhanced ferritic (CSEF) steel designed for modern supercritical and ultra-supercritical power generation plants. Micro-alloyed with vanadium, niobium, and nitrogen, it allows thinner pipe walls at 600°C steam temperatures.
Our ASTM A182 F91 hexagonal bars are supplied in cold drawn, centerless turned, annealed and pickled, or precipitation hardened condition depending on standard specifications. They exhibit superior surface smoothness, precise across-flats dimensions, excellent straightness, and uniform metallurgical grain structure tailored for CNC machined components and high-tensile fastener manufacturing.
We maintain extensive inventories in sizes from 3 mm to 100 mm across flats, ready for immediate dispatch from our Mumbai central warehouse with EN 10204 Type 3.1 Mill Test Certificates and optional third-party inspection.
GM handles enquiries for ASTM A182 F91 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 F91 / ASME SA182 |
| Grade Designation | ASTM A182 F91 (UNS K90901 / W.Nr. 1.4903) |
| Size Range (AF) | 3 mm to 100 mm Across Flats (1/8" to 4") |
| Length | 100 mm to 6000 mm / Custom cut lengths |
| Form & Profile | Hexagonal Bar (Hex Bar), Cold Drawn Hex Wire |
| Condition & Temper | Cold Drawn, Solution Annealed, Normalized & Tempered / Quenched |
| Surface Finish | Bright Cold Drawn, Pickled & Passivated, Polished |
| Dimensional Tolerance | ASTM A484 / EN 10278 h9, h10, h11 |
| Testing & Quality | 100% PMI, Tensile & Yield, Hardness, Microstructure, Ultrasonic (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) | 0.08 – 0.12 |
| Manganese (Mn) | 0.30 – 0.60 |
| Chromium (Cr) | 8.00 – 9.50 |
| Molybdenum (Mo) | 0.85 – 1.05 |
| Vanadium (V) | 0.18 – 0.25 |
| Niobium (Nb) | 0.06 – 0.10 |
| Nitrogen (N) | 0.03 – 0.07 |
| Iron (Fe) | Balance |
Minimum mechanical property requirements in designated standard delivery condition:
| Property | Value (Normalized & Tempered) |
|---|---|
| Tensile Strength (min) | 585 – 760 MPa (85 – 110 ksi) |
| Yield Strength 0.2% (min) | 415 MPa (60 ksi) |
| Elongation in 2" (min) | 20% |
| Reduction of Area (min) | 40% |
| Hardness (Brinell max) | 248 HB |
| Density | 7.85 g/cm³ |
| Standard / Country | Designation |
|---|---|
| ASTM / ASME Bar | A182 Grade F91 |
| ASTM / ASME Fitting | A234 Grade WP91 |
| UNS | K90901 |
| Werkstoff Nr. | 1.4903 |
| EN / DIN | X10CrMoVNb9-1 |
| Common Name | Grade 91 CSEF Steel |
| Form / Type | Size Range | Length / Dimensions | Condition / Standard |
|---|---|---|---|
| Cold Drawn Hex Bar | 3 mm – 65 mm AF | 1000 mm – 6000 mm | Cold Drawn, h9/h11 Tolerance |
| Hot Rolled Hex Bar | 20 mm – 100 mm AF | Up to 6000 mm / Random | Hot Rolled, Annealed & Pickled |
| Precision Ground Hex | 5 mm – 50 mm AF | Up to 4000 mm | Centerless Ground, h8/h9 |
| Custom Cut Billets | All Available AF | Custom Cut-to-length | Deburred ends, Ready to machine |
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 ASTM A182 F91 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 & Material | Alloy Steel F91 / WP91 (Grade 91) (UNS K90901 / W.Nr. 1.4903) |
| Standard | ASTM A182 F91 / ASME SA182 |
| Size Across Flats (AF) | Required AF in mm or inches |
| Length | Standard 3000 mm / 6000 mm or custom cut lengths in mm |
| Delivery Condition | Cold Drawn / Annealed & Pickled / Quenched & Tempered |
| Quantity | Required quantity in kg, meters, or number of bars |
| Testing Requirements | PMI, Ultrasonic Testing, Hardness, Tensile, Third-Party Inspection |
| Documentation | EN 10204 3.1 / 3.2 MTC with full chemical and mechanical data |
