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Cobalt content in tungsten carbide rods controls the balance between hardness and toughness. More cobalt adds impact resistance; less cobalt increases wear resistance but reduces brittleness. Learn typical cobalt ranges (6% to 20%) and their best applicat... View More>>

Learn how WC grain size (from ultra‑fine to coarse) influences edge sharpness, wear resistance, and toughness. Plus a simple rule for choosing the right grain when tools fail by abrasion or chipping – and why submicron grades are preferred for tool grindi... View More>>

Learn how WC grain size and cobalt binder percentage work together to determine the hardness, wear resistance, and toughness of tungsten carbide rods – and why the right balance is key for high-performance cutting tools.... View More>>

EJ Carbide Co., Ltd will be closed for the upcoming Chinese New Year (Spring Festival) holiday from Thursday, February 13th, 2026, to Sunday, February 23rd, 2026.... View More>>

the sharp rise in tungsten prices is the result of the resonance between resource scarcity, policy orientation, and industrial upgrading.... View More>>

National Day Break Notice... View More>>

How to use the Aluminum milling insert correctly, we have some advices... View More>>

According to the Regulation of National Annual Leaves and EJ Carbide company production schedule, the 2021 “Labor Day” holiday will be 5 days... View More>>

Cemented carbide is a composite material composed of the refractory metal compound (hard phase) and binder metal (bonding phase) produced by powder metallurgy. It is widely used in metal cutting and mechanical wear resistance.... View More>>

Mid-Autumn and National Festival holiday on 2020-EJ Carbide... View More>>