Aung Metals, a reputable manufacturer and supplier located in Naypyidaw, Myanmar, has built a solid reputation for providing top-notch Alloy Steel AISI 4340 Bars and Rods. Crafted with precision and in line with international standards, these bars are known for their remarkable strength, toughness, and durability. Aung Metals caters to a diverse array of industries, including automotive, aerospace, oil & gas, and heavy engineering. With state-of-the-art manufacturing facilities, rigorous quality control, and a strong focus on customer satisfaction, Aung Metals guarantees that every AISI 4340 product not only meets but exceeds performance expectations, supporting demanding industrial applications both locally and globally.
The Alloy Steel AISI 4340 Bars and Rods boast a well-balanced mix of elements such as Nickel (1.65–2.00%), Chromium (0.70–0.90%), Molybdenum (0.20–0.30%), Carbon (0.38–0.43%), Manganese (0.60–0.80%), and Silicon (0.15–0.35%). This unique composition results in exceptional hardenability and strength. The mechanical properties are impressive, featuring tensile strength of up to 1080 MPa, yield strength around 850 MPa, and an elongation of about 12%. These bars provide excellent impact resistance, fatigue strength, and toughness, even when faced with high stress or elevated temperatures, making them perfect for critical engineering applications.
| Specification | ASTM B365, ASME SB365 |
| Tantalum Bar Form | Tantalum Round, Hex, Flat, Half Round, Oval, Rectangular in Black & Bright Finish |
| Tantalum Round Bar Diameter | 0.125″ (3.18mm)~2.5″ (63.5mm) |
| Length | 2-12m |
| Purity | ≥99.95% or 99.99% |
| Tantalum Round Bar Length | 1-12m, Random, Fix & Cut Length or as per clients’ requirement |
| Tantalum | C | O | N | H | Nb | Fe | Ti | W | Mo | Si | Ni | Ta |
| R05240 | 0.010 | 0.020 | 0.010 | 0.0015 | 35.0 – 42.0 | 0.010 | 0.010 | 0.050 | 0.020 | 0.005 | 0.010 | Remainder |
| Grade | Tensile strength δbpsi (MPa)， ≥ | Yield strength δ0.2， psi (MPa)，≥ | Elongation in 1″/2″ gage length， ％， ≥ |
|---|---|---|---|
| R05240 | 40000 (276) | 28000 (193) | 20 |
| 3/16” (4.76mm) | 25mm | 2.1/2” (63.5mm) |
| ¼” (6.35mm) | 1” (25.4mm) | 2.3/4” (69.85mm) |
| 5/16” (7.94mm) | 1.1/8” (28.58mm) | 3” (76.2mm) |
| 3/8” (9.53mm) | 30mm | 3.1/4” (82.55mm) |
| 10mm | 1.1/4” (31.75mm) | 3.1/2” (88.9mm) |
| 12mm | 1.3/8” (34.93mm) | 4” (101.6mm) |
| ½” (12.7mm) | 1.1/2” (38.1mm) | 4.1/2” (114.3mm) |
| 15mm | 40mm | 5” (127mm) |
| 5/8” (15.88mm) | 1.3/4” (44.45mm) | 5.1/2” (139.7mm) |
| ¾” (19.05mm) | 2” (50.8mm) | 6” (152.4mm) |
| 20mm | 2.1/8” (53.98mm) | 7” (177.8mm) |
| 7/8” (22.23mm) | 2.1/4” (57.15mm) | 8” (203.2mm) |
| Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr |
|---|---|---|---|---|---|---|---|---|
| 3mm | 0.017 | 0.055 | 20mm | 0.753 | 2.470 | 3″ | 10.900 | 35.762 |
| 1/8″ | 0.019 | 0.062 | 22mm | 0.908 | 2.979 | 3-1/4″ | 12.800 | 41.996 |
| 5/32″ | 0.029 | 0.095 | 7/8″ | 0.926 | 3.038 | 3-1/2″ | 14.850 | 48.772 |
| 4mm | 0.030 | 0.098 | 24mm | 1.080 | 3.543 | 3-3/4″ | 17.001 | 55.780 |
| 3/16″ | 0.043 | 0.141 | 25mm | 1.180 | 3.871 | 4″ | 19.306 | 63.340 |
| 5mm | 0.047 | 0.154 | 1″ | 1.210 | 3.970 | 4-1/4″ | 21.908 | 72.249 |
| 7/32″ | 0.058 | 0.190 | 26mm | 1.271 | 4.170 | 4-1/2″ | 24.4487 | 80.340 |
| 6mm | 0.068 | 0.223 | 27mm | 1.368 | 4.490 | 4-3/4″ | 27.366 | 90.249 |
| 1/4″ | 0.076 | 0.249 | 1-1/8″ | 1.534 | 5.033 | 5″ | 30.461 | 99.940 |
| 7mm | 0.091 | 0.298 | 30mm | 1.691 | 5.548 | 5-1/2″ | 36.690 | 121.000 |
| 5/16″ | 0.118 | 0.387 | 1-1/4″ | 1.924 | 6.349 | 6″ | 43.860 | 143.900 |
| 8mm | 0.120 | 0.398 | 32mm | 1.894 | 6.314 | 6-1/2″ | 51.093 | 167.630 |
| 9mm | 0.152 | 0.498 | 1-3/8″ | 2.303 | 7.550 | 7″ | 59.432 | 196.000 |
| 3/8″ | 0.170 | 0.557 | 35mm | 2.390 | 7.553 | 7-1/2″ | 68.226 | 225.000 |
| 10mm | 0.189 | 0.620 | 36mm | 2.438 | 7.999 | 8″ | 77.586 | 254.55 |
| 11mm | 0.228 | 0.748 | 38mm | 2.792 | 8.903 | 10″ | 121.048 | 397.140 |
| 7/16″ | 0.232 | 0.761 | 1-1/2″ | 2.715 | 8.951 | |||
| 12mm | 0.271 | 0.889 | 40mm | 3.009 | 9.872 | |||
| 1/2″ | 0.303 | 0.994 | 1-5/8″ | 3.200 | 10.449 | |||
| 13mm | 0.318 | 1.043 | 1-3/4″ | 3.712 | 12.179 | |||
| 14mm | 0.368 | 1.207 | 45mm | 3.807 | 12.555 | |||
| 9/16″ | 0.383 | 1.256 | 1-7/8″ | 4.260 | 13.977 | |||
| 15mm | 0.424 | 1.391 | 48mm | 4.330 | 14.205 | |||
| 5/8″ | 0.473 | 1.551 | 50mm | 4.698 | 15.414 | |||
| 16mm | 0.481 | 1.578 | 2″ | 4.848 | 15.906 | |||
| 17mm | 0.543 | 1.791 | 2-1/8″ | 5.475 | 17.963 | |||
| 11/16″ | 0.573 | 1.880 | 2-1/4″ | 6.135 | 20.128 | |||
| 18mm | 0.610 | 2.001 | 60mm | 6.768 | 22.205 | |||
| 3/4″ | 0.682 | 2.237 | 2-3/8″ | 6.838 | 22.435 | |||
| 2-1/2″ | 7.576 | 24.856 | ||||||
| 2-5/8″ | 8.354 | 27.409 | ||||||
| 2-3/4″ | 9.169 | 30.083 |
Tantalum R05240 bars and rods are highly corrosion-resistant, making them suitable for potable water applications. However, it's essential to confirm material compliance with local regulations for drinking water systems.
Yes, Tantalum R05240 bars are customizable. Manufacturers often offer tailored dimensions, finishes, and specifications to meet unique project requirements across industries, ensuring precision and suitability for specific applications.
Alloy Steel AISI 4340 Bars and Rods are extensively utilized in high-stress industrial and engineering settings due to their outstanding strength and toughness. They are frequently found in the production of aircraft landing gear, automotive crankshafts, connecting rods, axles, drive shafts, gears, and components for heavy-duty machinery. Their remarkable fatigue and impact resistance make them ideal for applications that endure extreme mechanical loads and stress. Additionally, they are employed in oilfield tools, power transmission systems, and defense equipment, where reliability and performance under challenging conditions are crucial.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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