Hemi Metals, located in Hamilton, New Zealand, is a reputable manufacturer and supplier of high-quality Alloy Steel AISI 8620 Bars and Rods, specifically designed for demanding mechanical and carburizing applications. AISI 8620 is a low-alloy steel that features nickel, chromium, and molybdenum, making it renowned for its impressive core toughness and exceptional surface hardness after heat treatment. With meticulous attention to dimensional accuracy and rigorous quality checks, these bars and rods ensure dependable performance in high-load situations. Hemi Metals caters to various industries, including automotive, heavy engineering, mining, and machinery manufacturing, where strength, wear resistance, and durability are essential.
Alloy Steel AISI 8620 generally comprises around 0.18–0.23% carbon, 0.40–0.60% nickel, 0.40–0.60% chromium, and 0.15–0.25% molybdenum. This well-balanced alloy composition provides outstanding hardenability and toughness. When carburized, AISI 8620 forms a hard, wear-resistant surface while keeping a resilient core. The material typically achieves tensile strength between 550–850 MPa, depending on the heat treatment process, and offers good fatigue resistance and impact toughness.
Diameter : 100mm-1200mm
Length : 500mm – 5800mm
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 | Mn | Si | S | Cu | Fe | Ni |
| AISI 8620 | 0.18 – 0.23 | 0.7 – 0.9 | 0.15 – 0.35 | 0.04 | – | – | 0.4 – 0.7 |
| Element | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| AISI 8620 | 980 | 785 | 11 |
AISI 8620 Bars and Rods offer excellent strength, toughness, and wear resistance, making them ideal for high-stress applications.
Yes, AISI 8620 Bars and Rods can be heat treated to enhance their hardness and overall performance for demanding applications.
AISI 8620 Bars and Rods are commonly used in automotive, aerospace, and heavy machinery industries for gears, shafts, and axles.
Alloy Steel AISI 8620 Bars and Rods find extensive use in applications that demand a hard, wear-resistant surface paired with a tough, shock-resistant core. Common applications include gears, pinions, shafts, camshafts, crankshafts, sprockets, bushings, and heavy-duty automotive parts. In sectors like mining, construction, and industrial machinery, AISI 8620 is utilized for transmission components, drive parts, and high-load mechanical assemblies. It’s also employed in aerospace ground equipment and precision engineering components. Its remarkable carburizing response, toughness, and fatigue resistance guarantee a long service life even in harsh operating conditions.
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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