Carbide Grades Overview

Test Specimen: The TRS (Transverse Rupture Strength) test specimen dimensions are specified as either 4 x 8 x 25mm or Ø4 x 30mm with a span of 20mm.

Grade Specifications:

• Grade: WF12
• ISO Range: K20-K30
• Diameter: 3.0 to 32.0 mm
• Length: 320 mm

Chemical Data:

• Cobalt (Co) Weight Percentage: 12%
• Tungsten Carbide (WC) + Dopant Weight Percentage: 88%

Physical Data:

• Density: 14.10 g/cm²
• Hardness (Hv10): 1730 Kg/mm²
• Hardness (HRA ISO3738): 92.0
• Transverse Rupture Strength (TRA): ≥ 3,500 N/mm²
• Porosity: A <10㎛, B >10㎛, C (F.C)
• WC Grain Size: 0.5㎛

Applications: This grade is suitable for manufacturing drills, endmills, and taps. It is particularly effective for machining titanium alloys, stainless steels, grey cast iron, composite materials, and nickel alloys.