Carbide Grade Selection

Grade HB-325

A Course Grade Carbide

Engineered for the Toughest Forming Demands

Grade HB-325 is a coarse-grain tungsten carbide engineered with an elevated 25% cobalt binder to deliver maximum impact resistance the most demanding forming applications.. With a 75/25 carbide-to-cobalt ratio, HB-325 offers exceptional toughness and durability, making it an ideal solution for high-impact die applications including header dies, draw dies, stamping die details, ammunition dies, and thread rolling. Engineered to withstand repeated shock and heavy forming forces, HB-325 provides long-lasting performance where lesser materials fail.

Benefits

Maximum Impact Resistance

  • Formulated to resist chipping, cracking, and fatigue under extreme stress—maximizing the service life of dies.

Ideal for High-Stress Die Applications

  • Header dies, draw dies, and stamping die details perform reliably under extreme loads.

Built for Thread Rolling

  • Withstands the heavy force and surface demands of thread rolling operations.

Proven for Ammunition Dies

  • Designed for high-volume production, minimizing downtime and maximizing die longevity.

Specifications

Co (%): 25
Composition: Tungsten Carbide, WC: 75.0 ± 0.3%
Cobalt, Co: 25.0 ± 0.3%
Grain Structure: Course
Microstructure Grain Size:
(ASTM B-390)
4 μm
ISO Code: No K Designation
US Industry Designation: C14
WC (%): 75
Density (g/cm3):
(ASTM B-311)
13.56 ± 0.05
Avg Grain Size (Micron): 4
Hardness Rockwell A (HRA):
(ASTM B-294)
13.56 ± 0.05
Transverse Rupture Strength:
(ASTM B-406)
430,000 PSI
Sinter HIP TRS (psi): 430,000
Wear & Toughness Scale:

Manufactured in preforms, altered and standard blanks designs.

Industries

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