his specification falls within the ranges of composition and mechanical properties specified in ISO 5832-3 and ASTM F136.
Elemental composition requirements
Mechanical properties to be determined after annealing are listed in below Table.
The requirements are per ASTM F136 and must be met for acceptance of a material heat lot.
Mechanical property requirements.
|Diameter or thickness, inches||Tensile Strength (min), psi||Yield Strength (min), psi||Elongation, (min) %||Reduction in area* (min), %|
The microstructure must show fine dispersion of alpha and beta phases in accordance with ASTM F136.
No alpha case may be visible at a magnification of 100x.
The beta temperature must be determined with a suitable method and reported for each heat lot on the material certification.
Straightness of material should be equal to or tighter than the straightness tolerance specified in ASTM B348-13. Maximum straightness allowed for titanium bars is displayed below in Table.
Cold-Worked Titanium Bars for Machining – Straightness as per ASTM B348-13