Starc Metals, a prominent manufacturer and supplier located in Canberra, Australia, is dedicated to crafting top-notch **Carbon Steel A105 Bars and Rods** that adhere to international standards for strength and reliability. Thanks to cutting-edge manufacturing techniques and rigorous quality control, Starc Metals ensures that their products shine in terms of durability, dimensional precision, and resistance to corrosion. **Carbon Steel A105 Bars and Rods** find their place in high-pressure applications and critical industries like oil, gas, and power generation, where outstanding mechanical performance and longevity are a must.
These **Carbon Steel A105 Bars and Rods** primarily consist of **carbon (0.35% max), manganese (0.60–1.05%), silicon (0.10–0.35%)**, along with small amounts of **sulfur and phosphorus**. They boast impressive **tensile strength (485 MPa min)** and **yield strength (250 MPa min)**, coupled with good hardness and impact resistance. The material also offers excellent machinability, weldability, and toughness across a range of temperatures, making it perfect for forging, threading, and machining tasks in challenging environments.
| International Specifications | ASTM A105, ASME SA105 |
| Manufacturing Process | Forged/Hot Rolled/Cold Drawn/Peeled |
| Equivalent grades | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| SA105 Round Bar Dimensions | 3.0 – 50.8 mm, Over 50.8 – 300mm |
| ASTM A105 Rectangular Bars | 6.35 x 12.7mm,6.35 x 25.4mm,12.7 x 25.4mm |
| A105 Carbon Steel Hex Bars | AF5.8mm–17mm |
| Carbon Steel A105 Square Bar | AF2mm – 14mm, AF6.35mm,9.5mm,12.7mm, 15.98mm,19.0mm, 25.4mm |
| Carbon Steel A105 Flat Bars | 1/2” to 10” in the thickness range of 2mm to 150mm, |
| Finishes Available | Bright, Polish & Black |
| Length | 1meter to 6 Meters |
| Shapes | Hexagonal, Rounds, Square, Hex, Rectangular, Hollow, Flat, |
| Forms of A105 Bars in Stock: | Billet, Ingot, Forging Etc. |
| Carbon Steel | C | Si | Mn | P | S | Cr |
| A105 | 0.35 | 0.10-0.35 | 0.60-1.05 | 0.035 | 0.040 | 0.30 |
| Tensile Strength (N/mm2) | Elongation % | HB max |
| 485 | 22 | 187 |
| SIZE IN INCHES | ROUND | SQUARE | OCTAGON | HEXAGON | SIZE IN INCHES | ROUND | SQUARE | OCTAGON | HEXAGON |
| 1/16 | .010 | .013 | .011 | .012 | 11/16 | 1.262 | 1.607 | 1.333 | 1.392 |
| 5/64 | .017 | .022 | .018 | .019 | 45/64 | 1.320 | 1.681 | 1.394 | 1.456 |
| 3/32 | .023 | .029 | .024 | .025 | 23/32 | 1.380 | 1.756 | 1.487 | 1.521 |
| 7/64 | .031 | .039 | .033 | .034 | 47/64 | 1.440 | 1.834 | 1.521 | 1.588 |
| 1/8 | .042 | .053 | .044 | .046 | 3/4 | 1.502 | 1.913 | 1.586 | 1.656 |
| 9/64 | .053 | .067 | .056 | .058 | 25/32 | 1.630 | 2.075 | 1.721 | 1.797 |
| 5/32 | .065 | .083 | .069 | .072 | 13/16 | 1.763 | 2.245 | 1.862 | 1.944 |
| 11/64 | .079 | .100 | .083 | .087 | 27/32 | 1.901 | 2.421 | 2.008 | 2.096 |
| 3/16 | .094 | .120 | .099 | .104 | 7/8 | 2.045 | 2.603 | 2.159 | 2.254 |
| 13/64 | .110 | .140 | .116 | .121 | 29/32 | 2.193 | 2.792 | 2.316 | 2.418 |
| 7/32 | .128 | .163 | .135 | .141 | 15/16 | 2.347 | 2.988 | 2.479 | 2.588 |
| 15/64 | .147 | .187 | .155 | .162 | 31/32 | 2.506 | 3.191 | 2.646 | 2.763 |
| 1/4 | .167 | .213 | .176 | .184 | 1 | 2.670 | 3.400 | 2.820 | 2.945 |
| 17/64 | .188 | .240 | .199 | .207 | 1-1/16 | 3.015 | 3.838 | 3.183 | 3.324 |
| 9/32 | .211 | .269 | .223 | .233 | 1-1/8 | 3.380 | 4.303 | 3.569 | 3.727 |
| 19/64 | .235 | .300 | .248 | .259 | 1-3/16 | 3.766 | 4.795 | 3.977 | 4.152 |
| 5/16 | .261 | .332 | .275 | .288 | 1-1/4 | 4.172 | 5.313 | 4.407 | 4.601 |
| 21/64 | .288 | .360 | .304 | .318 | 1-5/16 | 4.600 | 5.857 | 4.858 | 5.072 |
| 11/32 | .316 | .402 | .334 | .348 | 1-3/8 | 5.049 | 6.428 | 5.332 | 5.567 |
| 23/64 | .345 | .439 | .364 | .381 | 1-7/16 | 5.518 | 7.026 | 5.827 | 6.085 |
| 3/8 | .376 | .478 | .397 | .414 | 1-1/2 | 6.008 | 7.650 | 6.345 | 6.625 |
| 25/64 | .408 | .519 | .431 | .450 | 1-9/16 | 6.519 | 8.301 | 6.885 | 7.189 |
| 13/32 | .441 | .561 | .466 | .486 | 1-5/8 | 7.051 | 8.978 | 7.446 | 7.775 |
| 27/64 | .475 | .605 | .502 | .524 | 1-11/16 | 7.604 | 9.682 | 8.030 | 8.385 |
| 7/16 | .511 | .651 | .540 | .564 | 1-3/4 | 8.178 | 10.41 | 8.634 | 9.018 |
| 29/64 | .548 | .698 | .579 | .604 | 1-13/16 | 8.773 | 11.17 | 9.265 | 9.673 |
| 15/32 | .587 | .747 | .620 | .647 | 1-7/8 | 9.388 | 11.95 | 9.911 | 10.35 |
| 31/64 | .627 | .798 | .662 | .692 | 1-15/16 | 10.02 | 12.76 | 10.58 | 11.05 |
| 1/2 | .668 | .850 | .705 | .736 | 2 | 10.68 | 13.60 | 11.28 | 11.78 |
| 33/64 | .710 | .904 | .750 | .783 | 2-1/16 | 11.36 | 14.46 | 11.99 | 12.53 |
| 17/32 | .754 | .960 | .796 | .831 | 2-1/8 | 12.06 | 15.35 | 12.73 | 13.30 |
| 35/64 | .799 | 1.017 | .844 | .881 | 2-3/16 | 12.78 | 16.27 | 13.49 | 14.09 |
| 9/16 | .845 | 1.076 | .892 | .932 | 2-1/4 | 13.52 | 17.21 | 14.27 | 14.91 |
| 37/64 | .893 | 1.136 | .943 | .985 | 2-5/16 | 14.28 | 18.18 | 15.08 | 15.75 |
| 19/32 | .941 | 1.199 | .994 | 1.038 | 2-3/8 | 15.06 | 19.18 | 15.91 | 16.61 |
| 39/64 | .992 | 1.263 | 1.048 | 1.094 | 2-7/16 | 15.87 | 20.20 | 16.75 | 17.49 |
| 5/8 | 1.043 | 1.328 | 1.102 | 1.150 | 2-1/2 | 16.69 | 21.25 | 17.62 | 18.40 |
| 41/64 | 1.096 | 1.395 | 1.207 | 1.209 | 2-9/16 | 17.53 | 22.33 | 18.52 | 19.34 |
| 21/32 | 1.150 | 1.464 | 1.214 | 1.268 | 2-5/8 | 18.40 | 23.43 | 19.43 | 20.29 |
| 43/64 | 1.205 | 1.535 | 1.272 | 1.329 | 2-11/16 | 19.29 | 24.56 | 20.37 | 21.27 |
Our Carbon Steel A105 Bars and Rods offer exceptional strength, durability, and corrosion resistance. They exhibit a tensile strength of 485 MPa (min), yield strength of 250 MPa (min), and elongation of 22% (min), making them ideal for high-pressure and high-temperature applications.
These bars and rods are extensively used in the oil and gas, petrochemical, power generation, marine, and construction industries. They are essential for flanges, fittings, valves, heat exchangers, and pressure vessels.
Yes, at Starc Metals, we provide tailored solutions to meet specific project requirements, including custom sizes, lengths, and finishes.
You’ll find **Carbon Steel A105 Bars and Rods** widely utilized in **flanges, fittings, valves, and pressure vessel components** across the **oil and gas, petrochemical, and power generation** industries. Their remarkable strength and ability to withstand mechanical stress make them a go-to choice for **high-temperature and high-pressure piping systems**. Moreover, they are essential in **industrial machinery, shafts, and structural components** that require durability and performance in tough conditions. The adaptability and cost-effectiveness of A105 carbon steel solidify its reputation as a reliable option for critical engineering applications around the globe.






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