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Titanium Ti-6Al-4V (AM, F2924)-HIP vs Ti-6Al-4V (AM, F2924)-STA

Titanium · Ti-6Al-4V (AM, F2924) temper comparison

Ti-6Al-4V (AM, F2924)-HIP and Ti-6Al-4V (AM, F2924)-STA are two conditions of the same titanium grade, Ti-6Al-4V (AM, F2924): HIP (hot isostatic pressed) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. Ti-6Al-4V (AM, F2924)-STA is the stronger of the two: yield strength 1,090 MPa (158 ksi) against 880 MPa (128 ksi) for Ti-6Al-4V (AM, F2924)-HIP, about 24% more; tensile strength follows at 1,180 MPa (171 ksi) vs 970 MPa (141 ksi). In exchange, Ti-6Al-4V (AM, F2924)-HIP is the more ductile: elongation 16% versus 10% for Ti-6Al-4V (AM, F2924)-STA, and Ti-6Al-4V (AM, F2924)-STA is harder (38 HRC vs 32 HRC). Ti-6Al-4V (AM, F2924)-HIP runs hotter in service (350°C vs 315°C continuous).

Ti-6Al-4V (AM, F2924)-HIPChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Ti-6Al-4V (AM, F2924)-STAChoose it when strength drives the design.

Ti-6Al-4V (AM, F2924)-HIP vs Ti-6Al-4V (AM, F2924)-STA: properties

Ti-6Al-4V (AM, F2924)-HIPTi-6Al-4V (AM, F2924)-STA

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

115 GPa16.7 Msi
113 GPa16.4 Msi

Tensile Strength (Ultimate)

970 MPa141 ksi
1,180 MPa171 ksi

Yield Strength (0.2% offset)

880 MPa128 ksi
1,090 MPa158 ksi

Elongation at Break

16%
10%

Reduction in Area

40%
22%

Fatigue Strength (Endurance Limit)

620 MPa89.9 ksi
560 MPa81.2 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
48 MPa·√m43.7 ksi·√in

Charpy V-Notch Impact (RT)

22 J16.2 ft·lbf
11 J8.1 ft·lbf

Hardness, Rockwell C

32 HRC
38 HRC

Hardness, Vickers

320 HV
370 HV

Same in both: Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34 · Compressive Strength 1,200 MPa174 ksi · Shear Strength 720 MPa104 ksi · Hardness, Brinell 340 HB

Physical

Density and transition temperatures.

Same in both: Density 4.43 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,604°C2,919 °F · Liquidus Temperature 1,660°C3,020 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

7 W/m·K4 BTU/hr·ft·°F
6.8 W/m·K3.9 BTU/hr·ft·°F

Max Service Temperature (continuous)

350°C662 °F
315°C599 °F

Same in both: Specific Heat Capacity 526 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.7 µm/m·K4.8 µin/in·°F · Latent Heat of Fusion 370 J/g159 BTU/lb · Min Service Temperature -253°C-423 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 1 % IACS · Electrical Resistivity 1.71×10⁻⁶ Ω·m67.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 92 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

21 / 100
16 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 22% · Weldability 65 / 100 · Formability (cold) 20 / 100 · Brazeability / Solderability 45 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 720 MJ/kg309,545 BTU/lb · Embodied Carbon (primary production) 46 kg CO₂/kg · Embodied Water 1,300 L/kg156 gal/lb · Typical Recycled Content 10%

Strength versus weight

Yield strength against density for every titanium grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0004.555.5Density (g/cm³)Yield strength (MPa) — log scaleTi-6Al-4V (AM, F2924)

Ti-6Al-4V (AM, F2924)-HIP vs Ti-6Al-4V (AM, F2924)-STA — frequently asked

Is Ti-6Al-4V (AM, F2924)-STA stronger than Ti-6Al-4V (AM, F2924)-HIP?

Yes. Ti-6Al-4V (AM, F2924)-STA has a typical yield strength of 1,090 MPa (158 ksi) against 880 MPa (128 ksi) for Ti-6Al-4V (AM, F2924)-HIP — about 24% more. Tensile strength is 1,180 MPa (171 ksi) vs 970 MPa (141 ksi).

Which condition does FabDigit quote by default, HIP or STA?

SR is the default Ti-6Al-4V (AM, F2924) condition in the FabDigit quote flow (neither HIP nor STA). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, Ti-6Al-4V (AM, F2924)-HIP or Ti-6Al-4V (AM, F2924)-STA?

Ti-6Al-4V (AM, F2924)-HIP, by a small margin. Both rate poor for machinability — 21/100 against 16/100 for Ti-6Al-4V (AM, F2924)-STA.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ti-6Al-4V (AM, F2924)-HIP and Ti-6Al-4V (AM, F2924)-STA side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.