GR5 Titanium Alloy Bar

As a model of high-performance metal materials, GR5 titanium alloy bar demonstrate unparalleled advantages over pure titanium in extreme working conditions and precision manufacturing due to their unique alloying design and excellent mechanical properties. Taking typical alloys such as Gr9 (Ti-3Al-2.5V) and Gr7 (Ti-0.15Pd) as examples, an alpha or near alpha alloy system is constructed by adding elements such as aluminum, vanadium, and palladium, which combines high strength, temperature resistance, and processing convenience. The tensile strength can be as high as 620-820MPa that is 40% -80% higher than pure titanium while it has low density from 4.43 to 4.51g/cm ³. It has matured into a key material for aerospace, energy equipment, and high-end manufacturing, which meets international standards such as ASTM B348 and AMS 4901.

In terms of technical parameters, GR5 titanium alloy bar exhibit diversified characteristics:

Gr9 alloy contains 3% aluminum and 2.5% vanadium, with a yield strength of ≥ 515MPa, elongation of ≥ 15%, excellent low-temperature toughness (maintaining good plasticity at -253 ℃), and is suitable for deep cold environments;

Gr7 alloy is made by adding 0.12-0.25% palladium to Gr2 pure titanium, which increases its crack corrosion resistance by three times. The annual corrosion rate is less than 0.0003mm in chemical media containing chloride ions. The size specifications are for lengths of 1-8 m and diameters of 10-300mm (tolerance ± 0.05- ± 0.5mm). The surface treatment can be polished (Ra ≤ 3.2 μ m), ground (Ra ≤ 1.6 μ m) or fine ground (Ra ≤ 0.8 μ m), which are applicable for varying levels of processing precision. Heat treatment processes such as β zone forging and annealing can accurately control grain size, resulting in a fatigue strength of Gr9 alloy exceeding 300MPa, significantly better than the 200MPa of pure titanium.

Gr9 Titanium alloy Bar

GR5 titanium alloy rod

Polished Titanium Rod

In application scenarios, titanium alloy rods have opened up multiple fields with their differentiated performance:

In the aerospace field, Gr9 rods are super molded into drone wing main beams, which are 50% lighter than steel components and have a dimensional stability error of less than 0.01mm under a temperature difference of -50 ℃ to 200 ℃;

In the automotive industry, Gr5 (Ti-6Al-4V) rod processed turbocharging shafts maintain 70% strength even at short-term high temperatures of 800 ℃, helping to improve engine efficiency;

In the energy industry, Gr7 rod is used as a support for heat transfer tubes in nuclear power evaporators, which is resistant to high-pressure and high-temperature steam corrosion and has a lifespan of over 30 years;

In the field of chemical engineering, pump shafts made of Gr12 (Ti-0.3Mo-0.8Ni) rods have a corrosion resistance five times that of stainless steel in dilute sulfuric acid environments, significantly reducing equipment downtime maintenance costs. Unlike pure titanium, which focuses on low load corrosion resistance scenarios, titanium alloy rods are designed for complex working conditions with high stress, variable temperature, and strong corrosion. For example, the anti spray components of deep-sea oil and gas extraction (capable of withstanding 100MPa high pressure and H ₂ S corrosion) and the compressor discs of aircraft engines (capable of withstanding 500 ℃ high temperature and alternating loads) rely on their excellent comprehensive performance to achieve reliable operation.

In terms of manufacturing process, titanium alloy rods are melted using three stages of vacuum consumable arc melting (VAR) to ensure uniform alloy composition, and the grain boundary structure is controlled through β forging technology to enhance crack propagation resistance; The precision rolling mill achieves high-precision control with a diameter tolerance of ± 0.03mm, and is equipped with ultrasonic testing (UT) and fluorescent penetrant testing (PT) to ensure zero defect delivery.

As a foreign trade supplier, we provide a full range of alloy rods such as Gr5, Gr9, Gr7, etc., supporting production according to AMS, GB, JIS standards. We can customize the heat treatment state (annealed state, solution aging state) and surface coating (anodizing, nickel plating) to meet the requirements of aviation grade inspection (100% UT testing) and medical grade certification (ASTM F136). The product is wrapped in moisture-proof oil paper and reinforced with wooden boxes, suitable for global logistics. We provide full process technical support from material selection to failure analysis, helping customers break through performance limits in high-end equipment manufacturing.

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