For manufacturers and engineers in Hamilton and beyond who demand exceptional performance from their materials, Latham Steel stands as a dedicated local partner. As a trusted manufacturer and supplier right here in Hamilton, New Zealand, we specialise in providing robust, high-integrity materials like our Alloy Steel F911 Bars. We understand that your projects require reliability, and our commitment is to deliver steel that meets the toughest industrial challenges, supporting local industry with a global standard of quality.
The strength of Alloy Steel F911 lies in its carefully balanced composition, which includes chromium, molybdenum, and vanadium. This specific blend gives the bars their renowned mechanical properties, creating a material that excels under pressure and high temperatures. You can count on F911 for impressive tensile strength and exceptional creep resistance, meaning it maintains its integrity and shape even when subjected to prolonged stress in extreme heat, making it a truly durable choice for critical applications.
Diameter : 8mm-3000mm
Length : 3,000-10,000mm
Finish : Bright, Polish & Black
Condition : Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
| Grade Symbol | UNS Number | Alloy | Elements | Composition % |
|---|---|---|---|---|
| F911 | K91061 | 9% chromium, 1% molybdenum, 0.2% vanadium plus columbium and nitrogen | Carbon | 0.09 – 0.13 |
| Manganese | 0.30 – 0.60 | |||
| Phosphorus | 0.020 max | |||
| Sulfur | 0.010 max | |||
| Silicon | 0.10 – 0.50 | |||
| Nickel | 0.40 max | |||
| Chromium | 8.5 – 9.5 | |||
| Molybdenum | 0.90 – 1.10 | |||
| Columbium | 0.060 – 0.10 | |||
| Tungsten | 0.90 – 1.10 | |||
| Aluminium | 0.02 max | |||
| Nitrogen | 0.04 – 0.09 | |||
| Vanadium | 0.18–0.25 | |||
| Boron | 0.0003 – 0.006 | |||
| Titanium | 0.01 max | |||
| Zirconium | 0.01 max |
| Property | Value |
|---|---|
| Tensile Strength, min, ksi [MPa] | 90 [620] |
| Yield Strength, min, ksi [MPa] | 64 [440] |
| Elongation in 2 in. [50mm] or 4D, min, % | 18 |
| Reduction or Area, min, % | 40 |
| Brinell Hardness Number, HBW | 187-248 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These properties make Alloy Steel F911 Bars indispensable in environments where failure is not an option. You will typically find them at the heart of power generation, forming essential components like high-temperature piping, headers, and superheater tubes in fossil fuel plants. They are also crucial in the petrochemical industry for processing equipment. Essentially, wherever there are demanding conditions involving high pressure and searing heat, F911 steel provides the reliable, long-lasting performance that keeps complex industrial systems running safely and efficiently.
Latham Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hamilton, New Zealand.
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