Anucha Metals manufactures and supplies Alloy Steel Flat Bars that offer strong wear resistance and machinability for structural and industrial applications. Produced in Bangkok, Thailand, these flat bars are forged or rolled and heat-treated to meet customer specifications. Commonly available in grades like 4140, 8620, and 1215, our flat bars are designed to meet the needs of industries such as automotive, tooling, oil and gas, and mechanical fabrication. With precise thicknesses and widths, Anucha Metals ensures accuracy and consistent performance across all alloy steel flat bars.
Alloy steel flat bars contain carbon (0.2 to 0.6%), chromium, molybdenum, and nickel to boost strength, toughness, and wear resistance. Depending on the grade, tensile strength can reach up to 1100 MPa, while yield strength typically ranges from 400 to 850 MPa. These bars have high impact strength, good hardness retention, and can be heat-treated for specific mechanical needs. They maintain their shape and strength under stress and heavy loads.
| Grades : | F1, F2, F5, F9, F11, F22, F91, LF2, LF3 |
|---|---|
| Standard : | ASTM A350 / ASME SA350 |
| Length(mm) : | 2 meters – 7 meters ( 8 feet to 24 feet) |
| Thickness : | 2mm~100mm |
| Types : | Flat Bars |
| 30 x 8 | 30 x 10 | 30 x 12 | 30 x 16 | 30 x 20 | 30 x 25 |
| 32 x 6 | 32 x 8 | 32 x 10 | 32 x 12 | 32 x 16 | 32 x 20 |
| 32 x 25 | 32 x 30 | 40 x 6 | 40 x 8 | 40 x 10 | 40 x 12 |
| 40 x 16 | 40 x 20 | 40 x 25 | 40 x 30 | 40 x 32 | 50 x 6 |
| 50 x 8 | 50 x 10 | 50 x 12 | 50 x 16 | 50 x 20 | 50 x 25 |
| 50 x 30 | 50 x 32 | 50 x 40 | 65 x 6 | 65 x 8 | 65 x 10 |
| 65 x 12 | 65 x 16 | 65 x 20 | 65 x 25 | 65 x 32 | 65 x 40 |
| 65 x 50 | 75 x 6 | 75 x 8 | 75 x 10 | 75 x 12 | 75 x 16 |
| 75 x 20 | 75 x 25 | 75 x 32 | 75 x 40 | 75 x 50 | 100 x 6 |
| 100 x 8 | 100 x 10 | 100 x 12 | 100 x 16 | 100 x 20 | 100 x 25 |
| 100 x 32 | 100 x 40 | 100 x 50 | 100 x 65 | 125 x 10 | 125 x 12 |
| 125 x 16 | 125 x 20 | 125 x 25 | 125 x 32 | 125 x 40 | 125 x 50 |
| 125 x 65 | 150 x 10 | 150 x 12 | 150 x 16 | 150 x 20 | 150 x 25 |
| 150 x 32 | 150 x 40 | 150 x 50 | 150 x 65 |
The typical size range for alloy steel flat bars varies, with widths from 20mm to 300mm, thicknesses from 3mm to 50mm, and lengths commonly up to 6 meters or more.
Yes, alloy steel flat bars are highly customizable. They can be tailored in dimensions, grades, and surface finishes to meet specific industry requirements, ensuring suitability for various applications.
Alloy steel flat bars and rods are durable due to their high tensile strength, hardness, and resistance to wear, corrosion, and heat. These properties are enhanced by alloying elements like chromium, molybdenum, and nickel, which improve toughness and durability under demanding conditions.
Alloy steel flat bars are used in base plates, frames, tool bodies, machine parts, and construction supports. In the automotive industry, they are found in clutch parts, brackets, and mounting assemblies. In tool and die making, they are used for press dies, punches, and jigs. In structural engineering, they are ideal for reinforcing loads. Their balance of machinability and strength makes them fit for both heavy-duty and precision applications across various sectors.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Anucha Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Bangkok, Thailand
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