GR5 Titanium Rods Bar Primary Production Processes

Our Rison Titanium GR5 titanium (Ti-6Al-4V alloy) rod are manufactured through a series of high-precision metallurgical processes to achieve their exceptional strength,

corrosion resistance, and aerospace-grade quality. Below are the key production stages:

1. Raw Material Preparation

• Sponge Titanium Production (Kroll Process):
  • In the Kroll process, workers use magnesium to reduce titanium tetrachloride (TiCl₄), producing porous titanium sponge.
  • The manufacturing process crushes, purifies, and blends the sponge with aluminum-vanadium master alloy (6% Al, 4% V).
• Electrode Compaction:
  • The titanium sponge + alloy mixture is pressed into compacted electrodes under vacuum or inert gas.

2. Primary Melting (Vacuum Arc Remelting – VAR)

• First Melt:
  • The electrode is melted in a vacuum arc furnace to form a preliminary ingot, removing volatile impurities (such as Mg, Cl).
• Second/Third Melt:
  • Repeated VAR melting ensures homogeneous composition and eliminates defects (segregation, porosity and so on).

3. Forging & Hot Working

• Ingot Breakdown:
  • The cast ingot is heated to 900–950°C and forged into billets using hydraulic presses or rotary forging.
• Hot Rolling/Extrusion:
  • Hot rolling mills process the billets at elevated temperatures to form rods with diameters ranging from 5mm to 200mm.
  • Controlled cooling prevents residual stresses.

4. Cold Drawing & Precision Machining

• Cold Drawing:
  • Cold drawing equipment pulls the rods through precision dies at room temperature to achieve tight tolerances (e.g., ±0.05mm) and smooth surfaces.
• Annealing:
  • Performed at 700–800°C to relieve stresses and restore ductility.

5. Surface Treatment & Finishing

• Pickling:
  • Acid bath (HF + HNO₃) removes oxide layers and scale.
• Polishing/Grinding:
  • For medical/aerospace applications, rods are mirror-polished to Ra <0.4μm.
• Ultrasonic Testing (UT):
  • Detects internal flaws before final certification.

6. Quality Control & Certification

• Chemical Analysis: Ensures composition meets ASTM B348/AMS 4928 (Al: 5.5–6.5%, V: 3.5–4.5%).
• Mechanical Testing: Verifies tensile strength (≥895 MPa), elongation (≥10%), and hardness (HRC 30–36).
• Microstructure Inspection: Confirms equiaxed α+β phase structure for optimal performance.

Key Applications of GR5 Titanium Rods

• Aerospace: Jet engine shafts, landing gear components.
• Medical: Orthopedic implants, surgical instruments.
• Automotive: High-performance connecting rods, valves.

Advantages of GR5 Titanium Rods Bar Production

✔ Superior Metallurgical Consistency (via triple VAR melting).
✔ Tailored Mechanical Properties through controlled thermo-mechanical processing.
✔ Defect-Free Microstructure critical for fatigue-resistant applications.

Our customers are com from all over the world and they love Our Rison Titanium GR5 titanium bar much,we have almost 85% repeat customers. Please check our official website if you need any titanium products.

What’s more, if you need to know more about Titanium rod titanium bar , pls feel free to click Here.

Rison Titanium is a very professional company ,we are focus on the production of Titanium more than 13 years. As well as we are the American Titanium Industry

Association Member. Also our GR5 taitanium bar Quality will Inspect Before Shipping and our company Manufacture in Strictly Accordance with ISO9001:2015& AS 9100 :2018.

If you have any questions or suggestions, pls feel free to contact us.