Hemi Metals, based in Hamilton, New Zealand, is a reliable manufacturer and supplier of Alloy Steel AISI 4130 Bars and Rods, celebrated for their strength, toughness, and versatility in tough industrial settings. This chromium-molybdenum alloy steel is prized for its outstanding machinability, weldability, and well-rounded mechanical performance. Hemi Metals crafts AISI 4130 Bars and Rods with exact dimensions, consistent chemical makeup, and rigorous quality control to align with global engineering standards. These products find extensive use in sectors like oil and gas, automotive, aerospace, pressure vessel fabrication, and heavy machinery. Hemi Metals guarantees robust, high-performance alloy steel materials that are perfect for critical and high-stress applications.
Alloy Steel AISI 4130 Bars and Rods feature a composition of 0.28–0.33% carbon, 0.8–1.1% chromium, 0.15–0.25% molybdenum, and 0.4–0.6% manganese, striking a solid balance between strength and hardenability. This alloy boasts high tensile strength, commendable yield properties, excellent toughness, and impressive fatigue resistance, especially when quenched and tempered. AISI 4130 remains stable under high stress and provides reliable impact strength. It also offers good weldability and machinability compared to higher-carbon grades. Its mechanical performance stays consistent across various temperatures, making it ideal for pressure equipment, structural parts, and high-load engineering components.
| Dimensions | : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Size | : | 5 mm To 500 mm |
| Diameter | : | 0.1 mm to 100 mm |
| Length | : | 100 mm To 3000 mm Long & Above |
| Finish | : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Tolerance | : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Form | : | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Grade | C | Mn | Si | P | S | Fe | Mo | Ni | Cr |
| AISI 4130 | 0.28-0.33 | 0.40-0.60 | 0.15-0.35 | 0.035 max | 0.025 MAX | 97.3-98.22 | 0.15-0.25 | 0.50 max | 0.80-1.10 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.85 g/cm3 | 1432 ℃ | 560 | 460 | 21.50% |
Alloy Steel AISI 4130 Bars and Rods offer exceptional strength, toughness, and resistance to wear due to their chromium and molybdenum content. These properties make them ideal for high-stress and high-temperature environments across industries like aerospace, automotive, and oil and gas.
Yes, our AISI 4130 Bars and Rods can undergo heat treatments such as quenching and tempering to enhance their mechanical properties, including increased hardness, strength, and toughness, for specialized applications.
Our AISI 4130 Bars and Rods are widely used in aerospace for structural components, in automotive for gears and shafts, and in oil and gas for pipelines and drilling equipment, thanks to their durability and adaptability.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | EN |
| AISI 4130 | 1.7218 | G41300 | JIS G4105 | BS 970 | 25CrMo4 |
Alloy Steel AISI 4130 Bars and Rods are extensively utilized in industries that demand strong, tough, and weldable alloy steel components. In the oil and gas industry, 4130 is used for wellhead components, manifolds, fittings, choke blocks, and high-pressure tubing. In aerospace and automotive sectors, it finds applications in shafts, landing gear parts, roll cages, suspension components, and structural members. Pressure vessel and boiler manufacturers depend on 4130 for essential welded structures.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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