Beta or near beta alloys are:
• Fully heat treatable
• Generally weldable
• Capable of high strengths
• Possess good creep resistance up to intermediate temperatures
• Excellent form-ability can be expected in the beta alloys in the solution treated condition
Beta-type alloys have good combinations of properties in sheet, as fasteners and are ideal for sporing applications. Some alloys offer uniform property levels through heavy sections.
The higher alloy content of beta alloys increases the density of beta alloys typically by 7-10% compared to Ti6Al4V.
Typical beta alloys include:
Ti3Al8V6Cr4Mo4Zr ASTM Grade 19
Ti10V2Fe3Al AMS 4983, 4984, 4987
Ti15Mo3Nb3Al2Si ASTM Grade 21
Ti15V3Cr3Sn3Al AMS 4914
Correctly, it is only the meta-stable beta alloys which are heat treatable by solution treatment and ageing. Fully stable beta alloys can only be annealed