Alloy Steel F91 A182 Round Bars in round, square and hex to ASTM A182. Get quotes from verified suppliers on MetalMitra.
- Alloy Steel F91 A182 Round Bars
- Grade 91
- Round Bars
- Bright Bars
- Hex Bars
- Square Bars
- Flat Bars
- Forged Bars
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Specifications
| Specification | EN, DIN, JIS, ASTM, BS, ASME, AISI |
|---|---|
| Standard Specification | ASTM A182 / ASME SA182 |
| Size | 5mm to 500mm Dia in 100mm to 6000mm Length |
| Thickness | 0.5mm to 500mm Diameter |
| Diameter | 10 mm To 200 mm |
| Length | 1000 mm Long To 6000 mm Long |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
Grades & standards
- Alloy Steel F91
- ASTM A182
Chemical composition & mechanical properties
| C | Mn | Si | Cr | Mo | V | Nb | N | Ni |
|---|---|---|---|---|---|---|---|---|
| 0.08–0.12 | 0.30–0.60 | 0.20–0.50 | 8.0–9.5 | 0.85–1.05 | 0.18–0.25 | 0.06–0.10 | 0.03–0.07 | 0.40 |
| Tensile strength, min | 585 MPa |
|---|---|
| Yield strength (0.2%), min | 415 MPa |
| Elongation in 50 mm, min | 20% |
Single values are maximums unless marked min. Values per ASTM A182 F91; always confirm against the purchase specification and the mill test certificate.
Need an dependable alloy steel bar stock? Alloy Steel F91 A182 Round Bars on MetalMitra come in round, square and hex to ASTM A182, ready for machining, forging and shaft work.
This range covers round, square, hex and flat sections in bright, black, peeled or forged condition, ready for machine shops and component makers.
Grade 91 is a 9Cr-1Mo-V creep-strength-enhanced ferritic steel used for high-temperature, high-pressure power plant service. Controlled additions of chromium, molybdenum, nickel or vanadium give alloy steel higher strength, deeper hardenability, better toughness and stronger performance at elevated temperature.
Available forms & variants
- Round Bars — Bright, black, peeled or centreless-ground rounds.
- Hex & Square Bars — Hex and square sections for turned and machined parts.
- Flat Bars — Flats for fabrication and general engineering.
- Forged & Hollow Bars — Forged bars, rings and hollow bars made to order.
Performance highlights
- High-Temperature Strength — Chrome-moly chemistry keeps its strength when temperatures climb.
- Creep Resistance — Proven in long-term, high-temperature pressure service.
- Hardenability — Heat-treats well to dial in strength and toughness.
- Durability — Performs reliably under heavy mechanical loads.
Typical applications
- Power Plants
- Boilers
- Refineries
- Petrochemical
- Oil & Gas
- Heat Exchangers
- Automotive
- Engineering Components
- Pressure Vessels
- Heavy Machinery
- Fabrication
- General Engineering
Quality checks & certification
Every lot of Alloy Steel F91 A182 Round Bars sourced through MetalMitra can be inspected and documented to the governing standard and your purchase order.
- Diameter & straightness inspection
- Visual and surface inspection
- Grade verification against the order
- Chemical composition verification
- Mechanical property testing
- Hardness testing as applicable
- Ultrasonic testing as applicable
- EN 10204 3.1 Mill Test Certificate
Why buy through MetalMitra
- Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
- One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
- Full traceability — Heat numbers, EN 10204 3.1 MTCs and third-party inspection on request.
- Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.
Ready to buy?
Send your size, grade, quantity and delivery location for Alloy Steel F91 A182 Round Bars, and matching suppliers on MetalMitra will come back with offers.
Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the mill test certificate.
Applications & industries
- Power Plants
- Boilers
- Refineries
- Petrochemical
- Oil & Gas
- Heat Exchangers
- Automotive
- Engineering Components
- Pressure Vessels
- Heavy Machinery
- Fabrication
- General Engineering
- Oil & Gas
- Petrochemical & Refining
- Power Generation
- Chemical Processing
- Automotive
Testing & documents
Ask for the documents you need in your requirement — suppliers confirm them in their quotation:
- Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
- Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
- Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests
Need Alloy Steel F91 A182 Round Bars?
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