As one of the Leading Carbide Manufacturers in China, China Powder metallurgy Enterprise Ltd produces varieties of carbide rods, such as carbide rods with 1 or 2 coolant holes, h6 ground or as-sintered carbide rods, full-length ( 300-330mm) or cut-to-lenth carbide rods. The diameter can be available from 1.0 mm to 25.4 mm.
For your reference, I am enclosing a very frequently used grade for your reference:
***Materials
Grade: DW30UF
Co: 10%
WC: 89.5% or so
Others: 0.5% or so.
Hardness>92 HRA,
TRS>3800N/mm2
Density: 14.45g/cm3
Grain Size: 0.6 micron

Porosity:
Of course, with regard to our quality, I am very glad to advsie you that we can send you some pcs free samples for the test...If there is something that I can help you, please don't hesitate to let me know. I am at your service at any time.