Based in the heart of Hamilton, New Zealand, Hemi Metals is a trusted name for industrial excellence, supplying superior High Speed Steel bars to the country’s workshops and manufacturers. We understand the precise demands of modern engineering, which is why our HSS bars are crafted to deliver unwavering performance where it matters most. Our commitment extends beyond supply; we are dedicated partners in progress, ensuring that every piece of metal meets the exacting standards required for the most challenging applications, powering innovation right here from the Waikato.
High Speed Steel’s exceptional capability comes from a specialized composition, typically rich in tungsten, molybdenum, chromium, and vanadium. This unique blend grants it remarkable red-hardness, meaning it retains its hardness and cutting edge even when exposed to the high temperatures generated during rapid operations. The result is a material with outstanding wear resistance and toughness, capable of withstanding significant stress and abrasion, which is precisely what makes it a cornerstone of demanding industrial processes.
High-speed steel (HSS) bars are sized based on their cross-sectional dimensions (diameter for round bars, width/thickness for flats, or side length for square bars) and overall length. Standard sizes often follow industry specifications (e.g., ASTM, DIN) and are available in a range of diameters (e.g., 3mm to 200mm or more) and lengths (commonly 1-6 meters). Custom sizes can also be produced based on application needs.
Consider grade, hardness, toughness, heat resistance, tensile strength, dimensional accuracy, machinability, application-specific needs, corrosion resistance, surface finish, cost-effectiveness, supplier reliability, and compliance with industry standards.
Store high-speed steel bars in a dry, ventilated area, away from moisture, chemicals, and extreme temperatures. Use racks or pallets to prevent deformation, and apply protective coatings to avoid corrosion.
The defining trait of High Speed Steel is its ability to excel in high-temperature, high-stress environments. This makes it the prime choice for creating cutting tools like drill bits, milling cutters, and lathe tools that must perform under friction and heat. Beyond cutting, its durability is essential for forming tools, punches, and dies used in metal stamping and extrusion. Essentially, in any application where maintaining a sharp, hard edge under demanding conditions is critical, High Speed Steel bars provide the reliable foundation.






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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