Esha Steel is a trusted manufacturer and supplier of high-quality Carbon Steel AISI 1045 Bars in Kolkata, serving diverse industrial sectors with precision-engineered solutions. Known for its commitment to excellence, the company provides bars that meet stringent industry standards, ensuring reliability and long-lasting performance. With advanced manufacturing capabilities and a customer-focused approach, Esha Steel delivers AISI 1045 bars suitable for machining, forging, and high-strength applications. Their expertise, combined with a deep understanding of material properties, allows them to cater to custom requirements across engineering, automotive, construction, and machinery industries, making them a preferred source for premium carbon steel products.
Carbon Steel AISI 1045 Bars have around 0.43-0.50% carbon, 0.60-0.90% manganese, ≤0.04% phosphorus, and ≤0.05% sulfur. They exhibit tensile strength of 570-700 MPa, yield strength of 300 MPa, and hardness of 170-210 HB. They have high strength, good machinability, high wear resistance, and moderate weldability. All these features make them suitable for shafts, gears, axles, and industrial parts used in automotive, construction, and machinery applications with durability and reliability in severe mechanical and structural applications.
| Specifications | : | AISI 1045, ASME SA1045 |
| Dimensions | : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Carbon Steel AISI 1045 Round Bars | : | 100mm-1200mm |
| Finish | : | Bright, Polish & Black |
| Length | : | 12m |
| Form | : | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Grade | Mn | S | C | P | Si | Cr | Ni |
| AISI 1045 | 0.5-0.8 | 0.035 | 0.5-0.42 | 0.035 | 0.17-0.37 | 0.25 | 0.3 |
| Grades | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Hardness |
| AISI 1045 | 600 | 40 | 355 | 229 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Carbon Steel AISI 1045 Bars contain approximately 0.43–0.50% carbon, 0.60–0.90% manganese, and small amounts of sulfur, phosphorus, and silicon. This medium-carbon content provides an excellent balance of strength, hardness, and machinability. AISI 1045 exhibits good tensile strength, moderate wear resistance, and enhanced toughness after heat treatment such as quenching and tempering. The material offers tensile strength ranging between 570–700 MPa and yield strength around 300–350 MPa. Its machinability and weldability are fair, while its ability to achieve higher hardness through heat treatment makes it suitable for demanding mechanical applications.
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| STANDARD | WERKSTOFF NR. | UNS |
| AISI 1045 | 1.1191 | G10450 |
| 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 | ||
| 1.375 | #11 | 14 | 14 | 35 | 35 | ||
| 1.500 | #12 | 16 | 16 | 38 | 38 | ||
| 1.625 | #13 | 18 | 18 | 41 | 41 | ||
| 1.750 | #14 | 20 | 20 | 44 | 44 | ||
| 1.875 | #15 | 22 | 22 | 48 | 48 | ||
| 2.000 | #16 | 25 | 25 | 51 | 51 | ||
| 2.250 | #18 | 28 | 28 | 57 | 57 | ||
| 32 | 32 | ||||||
| 36 | 36 | ||||||
| 40 | 40 | ||||||
| 44 | 44 | ||||||
| 50 | 50 | ||||||
| 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 AISI 1045 Bars are widely used across industries due to their strength, durability, and versatility. They are ideal for manufacturing shafts, gears, axles, studs, bolts, pins, spindles, and forged components requiring superior mechanical performance. In the automotive sector, these bars are used for crankshafts, connecting rods, and steering components. Machinery manufacturers rely on AISI 1045 for heavy-duty parts such as hydraulic shafts, machine tools, and industrial equipment. The construction and engineering sectors also utilize these bars for structural components, load-bearing parts, and high-stress applications where toughness, wear resistance, and reliable performance are essential.
Esha 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 Kolkata India.
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