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Ti-15V-3Cr-3Sn-3Al

Cold-formable beta titanium alloy with excellent strength-to-weight ratio for additive manufacturing of aerospace and high-performance parts.

Ti-15V-3Cr-3Sn-3Al is a metastable beta titanium alloy offering excellent cold formability, high specific strength, and low elastic modulus. It is widely used in aerospace and motorsport industries where weight reduction, weldability, and toughness are key.

With advanced titanium 3D printing, Ti-15-3 enables the production of lightweight, structurally optimized parts such as airframe ribs, control components, and high-performance brackets, allowing engineers to realize highly efficient, complex geometries with reduced material waste.

Ti-15-3 Similar Grades Table

Country/Region	Standard	Grade or Designation
USA	UNS	R58153
USA	AMS	AMS 4914 / AMS 4916
Russia	GOST	VT22L
China	GB	TB3

Ti-15-3 Comprehensive Properties Table

Category	Property	Value
Physical Properties	Density	4.72 g/cm³
	Melting Range	1575–1640°C
	Thermal Conductivity (20°C)	6.0 W/(m·K)
	Thermal Expansion (20–500°C)	8.8 µm/(m·K)
Chemical Composition (%)	Titanium (Ti)	Balance
	Vanadium (V)	14.5–15.5
	Chromium (Cr)	2.5–3.5
	Tin (Sn)	2.5–3.5
	Aluminum (Al)	2.5–3.5
Mechanical Properties	Tensile Strength	≥1150 MPa
	Yield Strength (0.2%)	≥1100 MPa
	Elongation at Break	≥10%
	Modulus of Elasticity	97 GPa
	Hardness (HRC)	32–36

3D Printing Technology of Ti-15V-3Cr-3Sn-3Al

Ti-15-3 is compatible with Selective Laser Melting (SLM), Direct Metal Laser Sintering (DMLS), and Electron Beam Melting (EBM). These processes allow for the precision fabrication of beta-phase titanium components with complex structures and excellent mechanical performance.

Applicable Process Table

Technology	Precision	Surface Quality	Mechanical Properties	Application Suitability
SLM	±0.05–0.2 mm	Excellent	Excellent	Aerospace Ribs, Thin Frames
DMLS	±0.05–0.2 mm	Very Good	Excellent	Motorsport Brackets, Connectors
EBM	±0.1–0.3 mm	Good	Very Good	Large-Scale Aerospace Parts

Ti-15-3 3D Printing Process Selection Principles

SLM is ideal for lightweight aerospace brackets, with fine geometry, low distortion, and tight dimensional tolerance (±0.05–0.2 mm).

DMLS offers flexibility in manufacturing medium-sized beta titanium components with consistent strength and moderate surface finish.

EBM is suitable for printing large parts where precision requirements are moderate (±0.1–0.3 mm) and thermal performance is critical.

Ti-15-3 3D Printing Key Challenges and Solutions

Residual stresses due to rapid thermal cycling can be mitigated using optimized support structures and Hot Isostatic Pressing (HIP) at 850–900°C and 100–150 MPa to improve fatigue strength and dimensional stability.

Porosity formation is minimized through fine-tuned parameters (laser power: 250–350 W; scan speed: 600–1000 mm/s) and HIP processing, achieving >99.8% part density.

Surface roughness (Ra 8–15 µm) may affect fatigue life and surface contact. CNC machining or electropolishing improves finish to Ra 0.4–1.0 µm.

Beta alloys are sensitive to oxygen contamination—handling under controlled atmosphere (O₂ < 200 ppm, RH < 5%) preserves ductility and toughness.

Industry Application Scenarios and Cases

Ti-15-3 is used across sectors where lightweight and cold-formable titanium is required:

Aerospace: Structural ribs, panels, wing attachments, and hydraulic tubing.
Motorsport: Suspension arms, brackets, and load-bearing connectors.
Industrial: Lightweight robotic parts and corrosion-resistant structural frames.

A leading aerospace supplier used SLM to produce Ti-15-3 fuselage components, achieving 22% weight savings and 15% increase in fatigue life, supporting fuel efficiency and structural optimization.