Anucha Metals provides durable and precisely engineered Alloy Steel Rectangular Bars manufactured in Bangkok, Thailand. These bars are intended for high-strength structural and engineering uses, providing excellent toughness and wear resistance. Available in custom sizes and grades like 4340, EN24, and F22, our rectangular bars are used in high-performance components that require flat dimensions. With tight tolerances, options for surface finish, and heat treatment capabilities, Anucha Metals ensures that each rectangular bar meets or surpasses industry standards for mechanical reliability.
Alloy steel rectangular bars usually include carbon (0.3 to 0.6%), along with chromium, molybdenum, and nickel. These elements contribute to tensile strengths between 600 and 1100 MPa and yield strengths up to 900 MPa, depending on heat treatment and grade. The bars show great toughness, dimensional stability, and wear resistance. Grades that can be heat-treated can be quenched and tempered to achieve high hardness for heavy-duty applications.
| Specifications | ASTM A182, ASME SA182 |
|---|---|
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Range | 5mm to 500mm Dia in 100mm to 6000mm Length |
| Diameter | 10 mm To 200 mm |
| Thickenss | 0.5mm to 500mm Diameter |
| High Speed Steel (HSS), HCHCR & OHNS in Grade | M2, M3, M35, M42, T-1, T-4, T-15, T-42, D2, D3, H11, H13, OHNS-01 & EN52 |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1000 mm Long To 6000 mm Long |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Element | C | Cr | Mn | Mo | P | S | Si | Ni |
| F5 | 0.15 Max | 4.0-6.0 | 0.30-0.60 | 0.44-0.65 | 0.035 Max | 0.030 Max | 0.50 Max | 0.50 Max |
| F1 | 0.15 Max | 3.0-5.0 | 0.30-0.60 | 0.40-0.50 | 0.035 Max | 0.030 Max | 0.50 Max | 0.50 Max |
| F22 | 0.05-0.15 | 2.00-2.50 | 0.30-0.60 | 0.90-1.10 | 0.035 Max | 0.040 Max | 0.50 Max | – |
| F91 | 0.08-0.12 | 8.0-9.5 | 0.30-0.60 | 0.85-1.05 | 0.020 Max | 0.010 Max | 0.20-0.50 | 0.40 Max |
| F9 | 0.15 Max | 8.0-10.0 | 0.30-0.60 | 0.90- 1.10 | 0.030 Max | 0.030 Max | 0.50- 1.00 | – |
| F11 | 0.10-0.20 | 1.00-1.50 | 0.40-0.65 | 0.44-0.65 | 0.025 Max | 0.040 Max | 0.50-0.80 | – |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min |
| F9 | 415 | 30 | 205 |
| F5 | 275 | 485 | 20 |
Alloy steel rectangular bars are not inherently environmentally friendly due to energy-intensive production processes and mining of raw materials. However, they can be recycled, reducing their environmental impact.
Yes, alloy steel rectangular bars are customizable in terms of dimensions, alloy composition, and surface finish. They can be tailored to specific applications, including strength, corrosion resistance, and shape requirements.
Alloy steel rectangular bars are durable due to their alloying elements like chromium, nickel, and molybdenum, which enhance strength, hardness, and resistance to wear, corrosion, and high temperatures, making them long-lasting.
Alloy steel rectangular bars are perfect for machine frames, brackets, base rails, and fixture plates. They are widely used in heavy machinery, power plants, industrial tools, and military applications. In transport and rail, they function as load-bearing plates and stiffeners. Their flat shape makes them easy to machine into precise forms for custom equipment and tools. The combination of hardness, toughness, and machinability makes these bars a versatile option for both structural and precision-engineered components.






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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