Mainly used for the production and processing of ballpoint pen tips. The material has good machinability, wear resistance and corrosion resistance.
Grade
Tensile strength Rm/MPa
Elongation EL
Vickers hardness HV0.5
Grain size Transverse Transvergrain size
grain size longitudinal Longitudinalgrain
Precipitated phase
TBPS
760-800
3-6
250-280
10-10.25
10.5-12.5
Check under the electron microscope, there shall be no carbides distributed in clusters, and a small amount of dispersed carbides are allowed when the electron microscope is 2000 times.
TBPS-E
≥750
2-4.5
240-280
≥9
≥9
Check under the electron microscope, there shall be no carbides distributed in clusters, and a small amount of dispersed carbides are allowed when the electron microscope is 2000 times.