Alloy Steel AISI 4130 Bars are renowned for their high strength and are made from a chromium-molybdenum alloy. They stand out due to their impressive toughness, resistance to corrosion, and ease of welding. Crafted using advanced forging and rolling techniques, these bars boast uniform dimensions, a superior surface finish, and consistent mechanical properties. Meeting international standards, AISI 4130 Bars are perfect for critical applications in industries like aerospace, automotive, oil and gas, and structural engineering, where strength, durability, and reliability are non-negotiable.
Alloy Steel AISI 4130 Bar is low-alloy steel with Chromium (0.8-1.1%) and Molybdenum (0.15-0.25%) additions to improve strength, toughness, and corrosion resistance. It further contains Carbon (0.28-0.33%), Manganese (0.40-0.60%), Silicon (0.15-0.35%), Sulfur (≤0.040%), and Phosphorus (≤0.035%). AISI 4130 has Tensile Strength: 560-1080 MPa, Yield Strength: 460-880 MPa, Elongation: 21-28%, and Hardness: 149-217 HB. It offers good weldability, good machinability, and high fatigue strength, thus suitable for aerospace, automotive, and structural use.
Diameter : 8mm-3000mm
Length : 3,000-10,000mm
Finish : Bright, Polish & Black
Condition : Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Form : 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.
The chemical makeup of AISI 4130 Bars includes carbon, chromium, molybdenum, manganese, and trace amounts of silicon. This unique blend boosts their tensile and yield strength, toughness, and hardenability, all while ensuring good weldability and machinability. On the mechanical side, AISI 4130 Bars deliver high tensile and yield strength, outstanding impact resistance, and fatigue resistance. Heat treatment methods like quenching and tempering enhance their hardness, toughness, and structural stability, guaranteeing dependable performance even under heavy loads and cyclic stresses.
| STANDARD | UNS | WERKSTOFF NR. |
| AISI 4130 | G41300 | 1.7218 |
These bars are commonly used in making automotive components, aerospace structures, machinery shafts, hydraulic systems, and precision engineering parts. Their blend of strength, toughness, and resistance to wear and fatigue makes them the go-to choice for demanding applications where safety, durability, and a long service life are paramount.
Chetak 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 Hyderabad, India.
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