Overview
90HR steel is a high-strength, wear-resistant alloy designed for demanding industrial environments. It is widely used in sectors where abrasion resistance and durability are critical, such as mining, construction, and heavy machinery manufacturing. This steel is known for its balanced combination of hardness and toughness, making it suitable for components subjected to high stress and wear. Its composition typically includes carbon, manganese, and other alloying elements to enhance performance.
Physical and Chemical Properties
90HR steel exhibits a density of approximately 7.85 g/cm³, similar to other carbon steels. Its melting point ranges between 1420-1520°C, depending on the specific alloy composition. The material is insoluble in water and resistant to many environmental factors, though it can corrode if exposed to moisture without proper protection. Its high hardness (typically measured on the Rockwell scale) and wear resistance are its most notable properties.
Main Applications
The primary use of 90HR steel is in the manufacturing of wear-resistant parts for heavy industries. Common applications include bucket teeth for excavators, crusher liners, and bulldozer blades. It is also employed in the production of industrial machinery components that require long service life under abrasive conditions. The steel's toughness makes it suitable for high-impact applications where other materials might fail.
Safety and Storage
When handling 90HR steel, workers should wear appropriate personal protective equipment, including gloves and eye protection, due to its sharp edges and heavy weight. During welding or cutting operations, proper ventilation is essential to avoid inhalation of fumes. For storage, the material should be kept in a dry environment to prevent rust formation. Stacking should be done carefully to avoid deformation or damage to the steel plates or components.
B2B Procurement Guide
When procuring 90HR steel, buyers should request material test certificates to verify the chemical composition and mechanical properties. It's advisable to inspect the material for surface defects such as cracks or uneven hardness. Consider the supplier's reputation, delivery capabilities, and after-sales support. Bulk purchases typically offer better pricing, but storage capacity and project timelines should be factored into ordering decisions.
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