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View Details6al 4v Titanium Bar
Solid bar stock of Ti-6Al-4V alloy, available in various cross-sectional shapes, serving as the premier material for high-strength, weight-critical engineered components.
Product Overview
Bokang's 6al 4v Titanium Bar is manufactured using advanced vacuum arc remelting technology, ensuring exceptional purity and consistent mechanical properties.
6Al-4V titanium bar encompasses all solid bar forms—round, square, rectangular, and hexagonal—manufactured from the Ti-6Al-4V (Grade 5) alloy. This product category is defined by the material's exceptional properties rather than a specific shape, representing the most versatile and widely used form of this high-performance alloy. Engineers select Ti-6Al-4V bar when the design mandates the alloy's high strength-to-weight ratio, excellent fatigue resistance, and good corrosion resistance in a solid, machinable form.
The choice of cross-section is driven by the final part's function: round bar for shafts and pins, square/rectangular bar for keys, ways, and structural members, and hexagonal bar for wrench-friendly fasteners or custom nuts. Available in the full spectrum of industry specifications (ASTM, AMS, ASME) and heat treatment conditions, this bar stock is the starting point for components across aviation, defense, medical, and motorsports. Its production involves stringent controls to ensure the wrought microstructure delivers the consistent, predictable performance required in these demanding fields.
Technical Support & Documentation
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View DetailsTechnical Specifications
Detailed specifications for our 6al 4v Titanium Bar
| Alloy | Ti-6Al-4V (UNS R56400, Grade 5) |
| Available Cross-Sections | Round, Square, Flat (Rectangular), Hexagonal |
| Size Range (Example: Round) | 3mm to 500mm+ diameter |
| Key Product Specifications | ASTM B348, AMS 4928, AMS 4911 (sheet/bar derived), ASTM F136 (ELI) |
| Metallurgical Conditions | Annealed, Solution Treated and Aged (STA), Mill Annealed, Duplex Annealed |
| Common Surface Finishes | Hot Rolled, Sand Blasted, Turned, Ground, Polished |
Key Advantages of Bokang 6al 4v Titanium Bar
Discover why our titanium wire stands out in the industry
Geometric Versatility for Design Optimization
The availability in multiple cross-sections allows designers to match the stock shape closely to the final part's envelope, minimizing machining waste and cost while optimizing load-bearing geometry.
Assured Property Consistency Across All Forms
Whether round or square, the bar is produced to the same rigorous material specifications, guaranteeing consistent tensile strength, fatigue life, and chemical composition throughout.
Superior Forging and Forming Characteristics
Ti-6Al-4V bar, especially in large cross-sections (billet), is the preferred feedstock for closed-die forging, offering excellent flow characteristics to fill complex dies and produce high-integrity net-shape parts.
Material Comparison
6al 4v Titanium Bar vs. Competitive Alternatives
| Feature | 6Al-4V Titanium Bar (General) | 17-4PH Stainless Steel Bar | Maraging Steel 300 Bar |
|---|---|---|---|
| Primary Strengthening Mechanism | Alpha-Beta microstructure, solution + aging possible | Precipitation Hardening (Cu-rich precipitates) | Precipitation Hardening (Ni₃Mo, etc.) |
| Typical Ultimate Tensile Strength Range | 900-1100 MPa (Annealed to STA) | 1000-1300 MPa (H900 Condition) | 2000-2100 MPa (Aged) |
| Fracture Toughness | High (especially ELI grade) | Moderate | Moderate to Low (very high strength) |
| Corrosion Resistance | Excellent | Good (but lower than austenitic SS) | Poor (similar to low-alloy steel) |
| Post-Machining Distortion | Low (if stress-relieved) | Can be high after aging if machined before | High (requires stress relieving after rough machining) |
Applications
6al 4v Titanium Bar applications across various industries
Oil & Gas Downhole
- Components for measurement while drilling (MWD) and logging while drilling (LWD) tools requiring non-magnetic, high-strength materials.
- Seat and stem assemblies for subsurface safety valves.
- Fasteners and housings for equipment in sour (H2S) service where specific grades meet NACE MR0175.
Motorsports (Non-Automotive)
- Chassis tubing nodes and suspension pickup points machined from solid bar for maximum strength.
- Steering rack components and column shafts.
- Brake caliper pistons and master cylinder components.
High-Speed Machinery
- Spindles and arbors for high-speed machining centers and grinding machines.
- Rotary union shafts and components for transferring fluids under pressure at high RPM.
- Impellers and rotor shafts for high-speed compressors and pumps.
Material Selection Guide
How to choose the right titanium wire for your application
1
Define the Primary Failure Mode to Guard Against
Select Ti-6Al-4V bar for applications where high-cycle fatigue (e.g., rotating shafts) or stress corrosion cracking in chloride environments are the primary concerns, as it excels in both areas compared to many alternatives.
2
Choose Cross-Section Based on Machining and Function
Use round bar for rotational symmetry. Use square or rectangular bar to create flat surfaces or keyways with minimal machining. Use hex bar for parts that will be gripped with a wrench during assembly or service.
3
Order in the Correct Condition for Your Process Flow
If you will perform significant machining and then heat treat, order annealed bar for easier machining. If you require maximum strength in the finished part and will do only light finishing, order STA (Solution Treated and Aged) condition.
4
Account for Material Movement in Precision Machining
Due to residual stresses from bar production, rough machining may cause the part to distort. For precision parts, plan for a rough machine > stress relieve > finish machine sequence, or specify pre-stress-relieved bar if available.
Production Process & Quality Control
Our rigorous manufacturing process ensures consistent quality
Vacuum Arc Remelting (VAR) Ingot Production
Ti-6Al-4V alloy is melted, typically via triple VAR, to produce a large, chemically homogeneous ingot free of detrimental inclusions.
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Ingot Breakdown and Billet Conditioning
The ingot is forged at high temperature to break the cast structure, then surface ground to remove defects, creating a clean billet for rolling.
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Hot Rolling to Specific Bar Shapes
The billet is reheated and rolled through shaped grooves in a bar mill: round grooves for round bar, square grooves for square bar, etc., elongating it to long lengths.
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Heat Treatment for Microstructure Control
The hot-rolled bar is annealed. The specific time-temperature cycle (mill anneal, duplex anneal) is critical for developing the alpha-beta microstructure that defines the alloy's properties.
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Straightening, Cutting, and Surface Preparation
The bar is straightened, cut to length, and the surface is prepared by shot blasting, turning, or grinding to meet order requirements.
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Non-Destructive Testing and Final Release
For aerospace and other critical specs, bars undergo ultrasonic testing. All bars receive final dimensional and visual inspection, and are certified with a test report before shipping.
Frequently Asked Questions
Common questions about pure titanium wire
They are the same material. "6Al-4V" is the chemical designation (6% Aluminum, 4% Vanadium). "Grade 5" is the common name given in ASTM and other material standards (e.g., ASTM B348 Grade 5). "Ti-6Al-4V" is another synonym. When ordering, it's best to use the standard designation (e.g., "ASTM B348 Grade 5") to avoid any ambiguity.
No, titanium alloys cannot be case hardened via traditional methods like carburizing or nitriding that work on steel. However, surface hardness and wear resistance can be improved through diffusion processes like oxygen diffusion (alpha case—usually undesirable), or more commonly, through applied coatings like titanium nitride (TiN), titanium aluminum nitride (TiAlN), or diamond-like carbon (DLC) via PVD or CVD.
Titanium's low thermal conductivity (about 6.7 W/m·K for Ti-6Al-4V) means heat does not dissipate quickly from the weld zone. This is a double-edged sword: it allows for deeper penetration with less input power, but it also means the heat-affected zone (HAZ) remains at high temperature longer, which can lead to grain growth and a larger HAZ. Precise control of heat input and the use of trailing shields are crucial to manage this.
For standard commercial bar, grain size is not typically specified or guaranteed. However, for aerospace specifications (like AMS 4928), microstructure requirements often include a maximum grain size or a call for an "equiaxed" structure. For very specialized applications, you can work with mills to produce bar with a controlled grain size, but this is a custom product with higher cost and lead time.
Store bars horizontally on padded racks to prevent bending and scratching. Keep them dry and separate from other metals (especially iron, steel, copper, and cadmium) to prevent galvanic corrosion. Use clean, non-marking slings for handling. The bars should be clearly marked and segregated by heat number and specification to maintain traceability, which is critical for many industries.
Why Choose Bokang Titanium?
18+ years of experience in high-quality titanium materials
18+
Years Experience
28+
Patents & Certifications
200+
Skilled Employees
ISO 13485:2016
Medical Device Certification
Our Commitment to Quality
Changzhou Bokang Special Material Technology Co., Ltd. is Wholesale 6al 4v Titanium Bar Manufacturers and Custom 6al 4v Titanium Bar Suppliers. At Bokang Titanium, we adhere to the strictest quality control protocols throughout our manufacturing process. Every batch of pure titanium wire undergoes rigorous testing including dimensional verification, mechanical property testing, surface quality inspection, and chemical analysis to ensure compliance with international standards.
Our quality management system is certified to ISO 9001:2015 and ISO 13485:2016 for medical device applications, ensuring full traceability from raw material to finished product. We maintain comprehensive documentation including material certifications, test reports, and process validation records.
With 18+ years of experience in titanium material production, we have developed specialized expertise in medical-grade, aerospace-grade, and industrial-grade titanium alloys. Our products are trusted by leading medical device manufacturers, aerospace companies, and industrial clients worldwide. We offer OEM/ODM 6al 4v Titanium Bar for sale.