Overview
1080K steel is a high-carbon steel grade with a carbon content ranging between 0.75% and 0.88%, making it suitable for applications requiring high hardness and durability. It is part of the AISI 10xx series and is often compared to AISI 1080 but with adjusted properties for specific industrial uses. This steel is commonly supplied in annealed or cold-worked conditions, allowing manufacturers to perform further heat treatments like quenching and tempering to achieve desired mechanical properties. Its balance of cost and performance makes it a popular choice in tooling and machinery components.
Physical and Chemical Properties
1080K steel exhibits a tensile strength of approximately 1,000–1,200 MPa after heat treatment, with a Rockwell hardness (HRC) of 60–65 when fully hardened. Its high carbon content contributes to its wear resistance but reduces weldability and requires careful machining to avoid brittleness. The steel's microstructure consists primarily of pearlite and cementite in its annealed state, transitioning to martensite after quenching. It is resistant to deformation under stress but may corrode if not properly coated or stored, necessitating protective measures in humid environments.
Main Applications
1080K steel is widely used in manufacturing industrial cutting tools such as saw blades, drill bits, and lathe tools due to its ability to retain a sharp edge. It is also employed in high-stress components like springs, agricultural machinery parts, and automotive clutch plates. In the B2B sector, it is often procured by metal fabrication shops and toolmakers who further process it into finished products. Specialty applications include knives and hand tools, where its hardness-to-cost ratio is advantageous.
Safety and Storage
When machining 1080K steel, use proper ventilation to avoid inhalation of metal dust, which can pose respiratory risks. Cutting or grinding requires coolant to prevent overheating and maintain tool life. Storage should be in a dry, controlled environment to prevent rust. Oil-coated or vacuum-sealed packaging is recommended for long-term storage. Dispose of waste material according to local metal recycling regulations.
B2B Procurement Guide
Buyers should prioritize suppliers who provide mill test reports certifying carbon content and traceability. Bulk purchases (e.g., 1-ton lots) typically reduce costs by 10–20%. Specify delivery forms (bars, sheets, or coils) based on downstream processing needs. For international procurement, verify compliance with standards like ASTM A29 or EN 10132-2. Heat-treated batches may command a 15–30% price premium but save post-processing costs. Negotiate lead times, as specialty grades may require 4–6 weeks for production.
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