Titanium Ti-6Al-4V (Grade 5) AM Powder-STA (Solution treated and aged)
Heat-treated state
UNS R56400 · ASTM F2924 · GB GB/T 38712
Pick for maximum strength and hardness in thin sections where ductility and toughness can be traded away.
Values for the STA condition
Other Ti-6Al-4V (Grade 5) AM Powder tempers and conditions
Ti-6Al-4V (Grade 5) AM Powder is listed in 8 conditions; see the grade overview at Ti-6Al-4V (Grade 5) AM Powder.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Beta annealed (~1020–1050 °C, slow cool + 730 °C stabilize) | Coarse lamellar structure for maximum fracture toughness and damage tolerance / creep resistance, at the cost of tensile strength and ductility. | 860 | 940 | 9 | 31 HRC | — |
Hot isostatic pressed | Default for fatigue- or fracture-critical aerospace/medical parts: closes gas porosity and lack-of-fusion, maximizing ductility and fatigue life. | 890 | 985 | 16 | 32 HRC | — |
As-deposited DED / LMD / wire-arc | Choose for large near-net shapes and repair cladding; coarser columnar prior-β grains give slightly lower strength and more anisotropy. | 910 | 1,010 | 11 | 34 HRC | 1 % IACS |
As-built EBM / EB-PBF | Self-annealed lamellar α+β from the hot build chamber — lower residual stress and near-wrought properties without further heat treatment. | 930 | 1,020 | 14 | 33 HRC | 1 % IACS |
Annealed | Use when the part must be qualified against wrought annealed Grade 5 (ASTM B348) property allowables. | 940 | 1,030 | 14 | 33 HRC | 1 % IACS |
SR-LPBFDefault LPBF + stress relief | Standard as-shipped condition for LPBF Ti64 parts: residual stress removed, α' partly decomposed, strength well above wrought Grade 5. | 1,020 | 1,120 | 12 | 35 HRC | — |
STAThis page Solution treated and aged | Pick for maximum strength and hardness in thin sections where ductility and toughness can be traded away. | 1,090 | 1,180 | 10 | 38 HRC | — |
As-built LPBF | Highest strength/lowest ductility state with martensitic α' and high residual stress — only for non-critical or immediately post-processed parts. | 1,150 | 1,290 | 8 | 39 HRC | — |
What is Ti-6Al-4V (Grade 5) AM Powder-STA?
Ti-6Al-4V (Grade 5) AM Powder-STA is Ti-6Al-4V (Grade 5) AM Powder heat treated to STA — pick for maximum strength and hardness in thin sections where ductility and toughness can be traded away. Ti-6Al-4V (Grade 5) AM Powder-STA has a yield strength of 1,090 MPa (158 ksi) and a tensile strength of 1,180 MPa (171 ksi) — stronger than 98% of titanium grades. Elongation at break is 10% and the elastic modulus is 113 GPa (16.4 Msi). Ti-6Al-4V (Grade 5) AM Powder-STA has a density of 4.43 g/cm³ (0.16 lb/in³), lighter than 89% of titanium grades. It melts at 1,604°C (2,919 °F). SR-LPBF is the default condition FabDigit quotes; STA is available on request or by drawing note.
Advantages
- High strength — 1,090 MPa (158 ksi), better than 98% of titanium grades
Limitations
- Low fracture toughness — 45 MPa·√m (41 ksi·√in), worse than 98% of titanium grades
- High embodied carbon — 50 kg CO₂/kg, worse than 98% of titanium grades
- Limited ductility — 10%, worse than 93% of titanium grades
- Low electrical conductivity — 1 % IACS, worse than 89% of titanium grades
- Poor heat conductor — 6.8 W/m·K (3.93 BTU/hr·ft·°F), worse than 86% of titanium grades
Ti-6Al-4V (Grade 5) AM Powder-STA properties
Typical room-temperature values for Ti-6Al-4V (Grade 5) AM Powder-STA; 10 are specific to this condition. Other listed values are Ti-6Al-4V (Grade 5) AM Powder reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
Ti-6Al-4V (Grade 5) AM Powder-STA has a density of 4.43 g/cm³ (0.16 lb/in³), lighter than 89% of titanium grades. It melts at 1,604°C (2,919 °F).
Mechanical16
Ti-6Al-4V (Grade 5) AM Powder-STA has a yield strength of 1,090 MPa (158 ksi) and a tensile strength of 1,180 MPa (171 ksi) — stronger than 98% of titanium grades. Elongation at break is 10% and the elastic modulus is 113 GPa (16.4 Msi).
Thermal6
Ti-6Al-4V (Grade 5) AM Powder-STA is rated for continuous service to 350°C (662 °F). It conducts heat at 6.8 W/m·K (3.93 BTU/hr·ft·°F), worse than 86% of titanium grades. Thermal expansion is 8.7 µm/m·K (4.83 µin/in·°F).
Electrical3
Ti-6Al-4V (Grade 5) AM Powder-STA conducts electricity at 1 % IACS, worse than 89% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (90/100), worse than 63% of titanium grades.
Sustainability4
Producing a kilogram of Ti-6Al-4V (Grade 5) AM Powder-STA takes about 780 MJ of energy and emits 50 kg of CO₂ — more than 98% of titanium grades. Typical recycled content is 15%.
Manufacturability8
Ti-6Al-4V (Grade 5) AM Powder-STA's machinability is poor (17/100, worse than 89% of titanium grades); weldability good (60/100); formability poor (25/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Ti-6Al-4V (Grade 5) AM Powder-STA
Is Ti-6Al-4V (Grade 5) AM Powder easy to machine?
Machine printed Ti64 at low surface speed (30–60 m/min carbide), heavy rigid setups, high-pressure flood coolant and sharp positive tooling; avoid dwelling to prevent work hardening and fire risk from fine chips.
Can Ti-6Al-4V (Grade 5) AM Powder be welded?
Readily fusion welded (GTAW/EBW/LBW) with full argon or vacuum shielding and trailing gas; keep interstitials low and post-weld stress relieve — no filler-free welding in open air.
Can Ti-6Al-4V (Grade 5) AM Powder be formed, bent or molded?
Formed only as a printed near-net shape; cold forming of printed stock is limited, use hot forming/superplastic forming above ~750 °C in inert atmosphere and design supports plus 650–800 °C stress relief on the plate before removal.
What surface finishes work on Ti-6Al-4V (Grade 5) AM Powder?
Blast, chemically mill or tumble to remove partially sintered powder, then machine or polish critical surfaces; Type II/III anodize (AMS 2488), passivate or plasma-spray HA for implants — never plate with hydrogen-charging processes.
Ti-6Al-4V (Grade 5) AM Powder chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Alα stabilizer | 5.5 – 6.75 | 6.2 |
| Vβ stabilizer | 3.5 – 4.5 | 4 |
| Fe | ≤ 0.3 | 0.18 |
| O≤0.13 % often specified for AM powder to preserve ductility over reuse cycles | ≤ 0.2 | 0.13 |
| C | ≤ 0.08 | 0.02 |
| N | ≤ 0.05 | 0.02 |
| H0.0125 % max in some powder specs | ≤ 0.02 | 0 |
| Y | ≤ 0.01 | — |
| Others (each) | ≤ 0.1 | — |
| Others (total) | ≤ 0.4 | — |
| Ti | balance | — |
Ti-6Al-4V (Grade 5) AM Powder-STA — frequently asked
What is Ti-6Al-4V (Grade 5) AM Powder-STA used for?
Ti-6Al-4V (Grade 5) AM Powder-STA is typically used for aerospace brackets, orthopedic implants, 3D printed structural parts and medical devices. In short: workhorse AM titanium powder; wrought-equivalent printed strength; widest AM process coverage.
What is the yield strength of Ti-6Al-4V (Grade 5) AM Powder-STA?
Ti-6Al-4V (Grade 5) AM Powder-STA has a typical yield strength of 1,090 MPa (158 ksi) and a tensile strength of 1,180 MPa (171 ksi) — stronger than 98% of titanium grades. Strength varies by condition: see the 8 listed tempers.
Is Ti-6Al-4V (Grade 5) AM Powder-STA easy to machine?
Not especially — machinability is rated poor (17/100, worse than 89% of titanium grades). Machine printed Ti64 at low surface speed (30–60 m/min carbide), heavy rigid setups, high-pressure flood coolant and sharp positive tooling; avoid dwelling to prevent work hardening and fire risk from fine chips.
Can Ti-6Al-4V (Grade 5) AM Powder-STA be welded?
Yes — weldability is rated good (60/100). Readily fusion welded (GTAW/EBW/LBW) with full argon or vacuum shielding and trailing gas; keep interstitials low and post-weld stress relieve — no filler-free welding in open air.
What surface finishes work on Ti-6Al-4V (Grade 5) AM Powder-STA?
Blast, chemically mill or tumble to remove partially sintered powder, then machine or polish critical surfaces; Type II/III anodize (AMS 2488), passivate or plasma-spray HA for implants — never plate with hydrogen-charging processes.
Can Ti-6Al-4V (Grade 5) AM Powder-STA be formed, bent or molded?
Formed only as a printed near-net shape; cold forming of printed stock is limited, use hot forming/superplastic forming above ~750 °C in inert atmosphere and design supports plus 650–800 °C stress relief on the plate before removal.
What is the maximum service temperature of Ti-6Al-4V (Grade 5) AM Powder-STA?
Ti-6Al-4V (Grade 5) AM Powder-STA is rated for continuous use to about 350°C (662 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Ti-6Al-4V (Grade 5) AM Powder SR-LPBF and Ti-6Al-4V (Grade 5) AM Powder AB-LPBF?
SR-LPBF is the default condition — standard as-shipped condition for LPBF Ti64 parts: residual stress removed, α' partly decomposed, strength well above wrought Grade 5. AB-LPBF: highest strength/lowest ductility state with martensitic α' and high residual stress — only for non-critical or immediately post-processed parts. Yield strength is 1,020 MPa in SR-LPBF versus 1,150 MPa in AB-LPBF.
Sources
- ASTM F2924 – Additive Manufacturing Ti-6Al-4V with Powder Bed Fusion — ASTM International (2021)
- ASTM F3001 / F3049 – Ti-6Al-4V ELI PBF and Powder Characterization — ASTM International (2021)
- AMS 4998 – Titanium Alloy Powder 6Al-4V — SAE International (2020)
- ASM Handbook Vol. 2 – Properties of Nonferrous Alloys (Ti-6Al-4V) — ASM International (1990)
- MMPDS-17 – Titanium Alloys chapter — Battelle/FAA (2022)
- EOS Titanium Ti64 / SLM Solutions Ti-Alloy Ti6Al4V material data sheets — EOS GmbH / Nikon SLM Solutions (2023)
- AP&C and Carpenter Additive Ti-6Al-4V Grade 5 powder datasheets — Colibrium Additive / Carpenter Technology (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.