Titanium Round Bar & Rod: Sizes and Applications
In this blog, we’ll break down the properties, applications, and advantages of oxygen-free copper, helping you understand why it’s preferred over standard copper in various industries.
Titanium Round Bar & Rod: Sizes and Applications
Titanium round bar and rod is the go-to form for machined components, fasteners, and shafts where strength-to-weight matters. Choosing the right one comes down to matching grade and diameter to how the part will be made and loaded.
Available diameters and lengths
Titanium round bar is commonly stocked from about 5 mm up to 150 mm in diameter, in standard lengths of 1 to 3 metres or cut to size. Thin sections are often called rod; larger sections, bar — but the grades and standards are the same. For precision machining, confirm whether you need a ground/peeled finish (tighter diameter tolerance) or a standard hot-rolled surface.
Grades for bar and rod
Grade 2 round bar suits parts needing corrosion resistance over high strength — valves, fittings, and chemical-handling components. Grade 5 (Ti-6Al-4V) is chosen for structural and load-bearing parts because of its much higher tensile strength. The Grade 2 vs Grade 5 comparison covers when each makes sense.
Typical applications
- Aerospace fasteners and fittings (see why titanium is used in aerospace)
- Medical implants and surgical instruments
- Marine hardware and shafts
- Machined components for chemical and oil & gas equipment
FAQ
Can titanium round bar be machined easily? Yes, with the right tooling and coolant. It work-hardens, so steady feeds and sharp tools matter.
What standard covers titanium bar? ASTM B348 is the common specification for titanium bar and billet.
Looking for a specific diameter and grade? See our titanium round bars or contact us for availability. The titanium buyer’s guide covers every form in one place.
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A: Carbon steel relies on carbon content alone for its properties. Alloy steel adds elements like chromium, nickel, molybdenum, and vanadium to achieve specific improvements — higher strength, better low-temperature toughness, creep resistance, or corrosion resistance — giving it a far broader performance range than carbon steel.
A: For ambient to 400°C service, ASTM A516 Grade 70 is the standard choice. For high-temperature refinery or power plant use (up to 600°C), ASTM A387 Grade 11 or 22 (chrome-moly) applies. For cryogenic service down to -196°C, 9% nickel steel (ASTM A553) is required.
A: Wear-resistant grades like AR400/AR500 are quenched to martensitic hardness of 370–500 HB — 3–4× harder than structural grades like A572-50. They resist abrasive wear in mining and construction equipment but have limited weldability and are not suitable as primary structural members.
A: CE (= C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15) predicts susceptibility to hydrogen-induced cold cracking during welding. Sheets with CE above ~0.40 require preheating to slow cooling and allow hydrogen diffusion, preventing weld cracking. Always develop a qualified WPS based on the specific CE value.
