At Esha Steel, a trusted manufacturer and supplier in Kolkata, we offer premium Alloy Steel AISI 4130 Bars to industries across India. Produced according to ASTM and ASME standards, these bars are engineered for high-strength and moderate-to-high temperature applications. Esha Steel ensures precise dimensions, strict quality control, and superior mechanical performance. Widely used in aerospace, automotive, oil and gas, and industrial machinery sectors, AISI 4130 bars deliver excellent toughness, weldability, and corrosion resistance, making them ideal for fabricating shafts, gears, fasteners, and structural components where strength, reliability, and long-term durability are critical.
AISI 4130 Bars are made from chromium-molybdenum low-alloy steel with controlled carbon, chromium, molybdenum, manganese, phosphorus, sulfur, and silicon content. This composition enhances tensile strength, toughness, and resistance to wear and fatigue. Mechanically, 4130 bars offer tensile strength of 560–700 MPa, yield strength of 460–630 MPa, and good elongation with excellent impact resistance. Heat treatment improves hardness, dimensional stability, and high-temperature performance. Their uniform microstructure ensures excellent weldability, machinability, and durability, making AISI 4130 bars suitable for high-stress industrial components and mechanical assemblies requiring reliable performance under demanding conditions.
Diameter :Â 8mm-3000mm
Length :Â 3,000-10,000mm
Finish :Â Bright, Polish & Black
Condition :Â Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Form :Â Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
| Grade | C | Cr | Si | S | Mn | P | Mo | |
| AISI 4130 | min. | 0.28 | 0.8 | 0.15 | – | 0.4 | – | 0.15 |
| max. | 0.33 | 1.1 | 0.35 | 0.04 | 0.8 | 0.035 | 0.25 | |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Hardness |
| AISI 4130 | 930 | 12 | 735 | 229 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | UNS | WERKSTOFF NR. |
| AISI 4130 | G41300 | 1.7218 |
AISI 4130 Bars are widely used in aerospace components, automotive parts, oil and gas equipment, industrial machinery, and structural assemblies. They are ideal for fabricating shafts, gears, fasteners, couplings, and critical mechanical components that require high strength and toughness. AISI 4130 bars are suitable for applications involving moderate-to-high temperatures, cyclic loading, and mechanical stress, providing reliable and long-lasting performance. With excellent weldability, machinability, and corrosion resistance, these bars are trusted for precision engineering, power transmission components, and industrial assemblies, ensuring safe, durable, and efficient operation in demanding environments.
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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