Grade 5 vs Grade 2 titanium

Ti-6Al-4V · Commercially Pure

Grade 2 is commercially pure, with a minimum tensile strength of 345 MPa (50 ksi). Grade 5 (Ti-6Al-4V) is an alloy with a minimum of 895 MPa (130 ksi) in the annealed condition, and is less formable.

Mechanical properties

Specified minimums for annealed material at room temperature.

Grade 5 vs Grade 2: mechanical properties (specified minimums)
Property	Grade 5	Grade 2	Difference
Tensile strength (min)	895 MPa (130 ksi)	345 MPa (50 ksi)	+550 MPa (80 ksi) for Grade 5
Yield strength (0.2%, min)	828 MPa (120 ksi)	275 MPa (40 ksi)	+553 MPa (80 ksi) for Grade 5
Elongation (min)	10%	20%	−10 points for Grade 5

Chemical composition

Maximum weight percent unless shown as a range. A dash means the element is not listed on its own for that grade.

Grade 5 vs Grade 2: chemical composition limits (wt %)
Element	Grade 5	Grade 2
Aluminum (Al)	5.50–6.75	—
Vanadium (V)	3.50–4.50	—
Iron (Fe)	0.40	0.30
Oxygen (O)	0.20	0.25
Carbon (C)	0.08	0.08
Nitrogen (N)	0.05	0.03
Hydrogen (H)	0.015	0.015
Other elements	0.1 each / 0.4 total	0.1 each / 0.4 total
Titanium (Ti)	Balance	Balance

Density and weight

Typical density: Grade 5 4.43 g/cm³, Grade 2 4.51 g/cm³. A piece of Grade 5 weighs about 1.8% less than the same piece in Grade 2. Estimate a piece with the titanium weight calculator.

Standards and forms

Grade 5	ASTM B348 (bar), ASTM B265 (sheet/plate). Supplied by Laube as bar, sheet, plate.
Grade 2	ASTM B348 (bar), ASTM B265 (sheet/plate), ASTM B338 (tube). Supplied by Laube as bar, tube, sheet, plate.
Both grades	bar, sheet, plate

Sources and notes

Values checked against ASTM B348-19 (bar), ASTM B265-11 (sheet and plate) and ASTM B338-10e1 (tube).
Minimum properties per ASTM B348 apply to bar up to 3 in (76 mm); larger sections are by agreement.
Minimum properties per ASTM B265 apply to plate up to 1 in (25 mm) thick; thicker plate is by agreement.
Density is a typical value, not a specification requirement.

Reviewed by Laube, September 2026