Yousef Steel, a well-respected steel manufacturer and supplier located in Riyadh, Saudi Arabia, proudly offers top-notch **Carbon Steel ASTM A105 bars** designed for high-temperature and high-pressure applications. These bars, whether forged or rolled, are commonly utilized in the production of flanges, fittings, valves, and various components in the oil & gas, petrochemical, power generation, and general engineering industries. Yousef Steel guarantees that every product adheres to ASTM standards, featuring precise machining, a superb surface finish, and complete certification.
ASTM A105 serves as a standard specification for forged carbon steel materials, particularly effective for both ambient and high-temperature service. A105 bars boast a minimum yield strength of 250 MPa and a minimum tensile strength of 485 MPa. Renowned for their impressive strength, toughness, and workability, these bars also offer good machinability and weldability, making them perfect for forging, threading, and shaping. Typically available in normalized, rough turned, or black finish conditions, A105 bars maintain consistent mechanical properties throughout their entire cross-section.
| Standard | ASTM A105, ASME SA105 |
|---|---|
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Round bar Size | Diameter: 3-~800mm |
| Hex Bar Size | 2-100mm A/F |
| Square Bar Size | 4 to 100mm |
| Angle Bar Size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Rectangular Bars Section | 3.0 to 12.0mm thickness |
| Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Threaded Bar Billet Size | 1/2 to 495mm Diameter |
| Rectangular Size | 33 x 30mm to 295 x 1066mm |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Condition | Hardened & tempered, annealed |
| Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Processing | Bar cutting to 650mm |
| Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Grade | C | Si | Mn | P | S | Mo | Ni | Cr | Cu | V |
| A105 | 0.35 | 0.10–0.35 | 0.60–1.05 | 0.035 | 0.040 | 0.12 | 0.40 | 0.30 | 0.40 | 0.08 |
| Grade | Yield Strength, Min (MPa ) | Tensile Strength, Min (MPa) | Elongation, min, % |
| A105 | 250 | 485 | 30 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These bars are frequently used in flanges, pipe fittings, shaft components, pressure vessel parts, and valve bodies, establishing A105 carbon steel bars as an industry standard for reliable performance under pressure. Yousef Steel supplies these bars in a variety of diameters and lengths, with custom sizes and finishes available upon request. All products can be provided with EN 10204 3.1/3.2 certification, ultrasonic testing, and third-party inspection as needed to meet specific project and international quality standards.
| ASTM A105 Round Bar Equivalent | ||
|---|---|---|
| STANDARD | UNS | WERKSTOFF NR. |
| ASTM A105 | K03504 | – |
| US Bar | Metric | Japanese | Canadian/ASTM | ||||
| Diameter(Inch) | Carbon Steel A105 Bar Size | Diameter (millimeter) | Carbon Steel A105 Bar Size | Diameter (millimeter) | Carbon Steel A105 Bar Size | Diameter (millimeter2) | Carbon Steel A105 Bar Size |
| 0.250 | #2 | 5 | 5 | 6 | 6 | 100 | 10M |
| 0.375 | #3 | 5.5 | 5.5 | 10 | 10 | 200 | 15M |
| 0.500 | #4 | 6 | 6 | 13 | 13 | 300 | 20M |
| 0.625 | #5 | 7 | 7 | 16 | 16 | 500 | 25M |
| 0.750 | #6 | 8 | 8 | 19 | 19 | 700 | 30M |
| 0.875 | #7 | 9 | 9 | 22 | 22 | 1000 | 35M |
| 1.000 | #8 | 10 | 10 | 25 | 25 | 1500 | 45M |
| 1.125 | #9 | 11 | 11 | 29 | 29 | 2500 | 55M |
| 1.250 | #10 | 12 | 12 | 32 | 32 | Â | Â |
| 1.375 | #11 | 14 | 14 | 35 | 35 | Â | Â |
| 1.500 | #12 | 16 | 16 | 38 | 38 | Â | Â |
| 1.625 | #13 | 18 | 18 | 41 | 41 | Â | Â |
| 1.750 | #14 | 20 | 20 | 44 | 44 | Â | Â |
| 1.875 | #15 | 22 | 22 | 48 | 48 | Â | Â |
| 2.000 | #16 | 25 | 25 | 51 | 51 | Â | Â |
| 2.250 | #18 | 28 | 28 | 57 | 57 | Â | Â |
| Â | Â | 32 | 32 | Â | Â | Â | Â |
| Â | Â | 36 | 36 | Â | Â | Â | Â |
| Â | Â | 40 | 40 | Â | Â | Â | Â |
| Â | Â | 44 | 44 | Â | Â | Â | Â |
| Â | Â | 50 | 50 | Â | Â | Â | Â |
| Diameter in inch | Size in inch/MM | Weight Lbs/ft & Kg/M |
| 1/16 | 0.0625 1.5875 | 0.010 / 0.01488 |
| 1/8 | 0.125 3.175 | 0.042 / 0.062496 |
| 3/32 | 0.0938 2.38252 | 0.0240 / 0.035712 |
| 5/32 | 0.1563 3.97002 | 0.065 / 0.09672 |
| 7/32 | 0.2188 5.55752 | 0.128 / 0.190464 |
| 3/16 | 0.1875 4.7625 | 0.094 / 0.139872 |
| 1/4 | 0.25 6.35 | 0.167 / 0.248496 |
| 5/16 | 0.3125 7.9375 | 0.260 / 0.38688 |
| 9/32 | 0.2813 7.14502 | 0.211 / 0.313968 |
| 3/8 | 0.375 9.525 | 0.376 / 0.559488 |
| 1/2 | 0.5 12.7 | 0.668 / 0.993984 |
| 7/16 | 0.4375 11.1125 | 0.512 / 0.761856 |
| 9/16 | 0.5625 14.2875 | 0.844 / 1.255872 |
| 11/16 | 0.6875 17.4625 | 1.264 / 1.880832 |
| 5/8 | 0.625 15.875 | 1.043 / 1.551984 |
| 3/4 | 0.75 19.05 | 1.502 / 2.234976 |
| 7/8 | 0.875 22.225 | 2.045 / 3.04296 |
| 13/16 | 0.8125 20.6375 | 1.761 / 2.620368 |
| 15/16 | 0.9375 23.8125 | 2.35 / 3.4968 |
| 1 1/16 | 1.0625 26.9875 | 3.012 / 4.481856 |
| 1 | 1 25.4 | 2.671 / 3.974448 |
| 1 1/8 | 1.125 28.575 | 3.38 / 5.02944 |
| 1 1/4 | 1.25 31.75 | 4.173 / 6.209424 |
| 1 3/16 | 1.1875 30.1625 | 3.77 / 5.60976 |
| 1 5/16 | 1.3125 33.3375 | 4.598 / 6.841824 |
Carbon Steel A105 Bars find their extensive applications across different industries on account of its superior strength, durability, and resistance to corrosion. They have major applications in pipelines, pressure vessels, as well as structures in oil & gas, petrochemical, power plant, and ship-building industries. Bars are suitable for flanges, valves, fittings, and parts of machinery in order to sustain high-pressure as well as high-temperature service conditions. Their ease of machinability and weldability make them a favorite for fabrication, construction, and heavy engineering use.
Yousef 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 Riyadh, Saudi Arabia.
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