GR1 Titanium Round Bar

GR1 titanium round bar is the softest and most ductile of all titanium grades. It is unalloyed, commercially pure titanium, offering excellent corrosion resistance, formability, and weldability, making it a popular choice in industries like chemical processing, marine, and medical.

GR1 titanium chemical composition limits:

GR1 titanium mechanical properties (ASTM B348):

GR1 titanium yield strength is the lowest among titanium grades, making it the most formable and ductile.

GR1 titanium price per kg is generally lower than GR5, making it an economical choice for applications prioritizing formability and corrosion resistance over maximum strength.

GR1 titanium round bar is produced through radial forged technique:

Raw material – High-purity titanium sponge (99.5%)

Melting – VAR furnace for ingot production

Forging – Radial forged to achieve desired diameter (3-300mm)

Annealing – Heat treatment to optimize ductility

Surface finishing – Polished surface

Inspection – Dimensional and quality verification

Q1: What is GR1 titanium round bar?
A: GR1 titanium round bar is the softest and most ductile of all titanium grades. It is unalloyed, commercially pure titanium (99.5% purity), offering excellent corrosion resistance, formability, and weldability. GR1 titanium meets ASTM B348 standard.

Q2: What is the UNS number for GR1 titanium bar?
A: The UNS number for GR1 titanium bar is R50250. ASTM B348 GR1 titanium bar uses UNS R50250. Medical grade 1 titanium uses ASTM F67 Grade 1.

Q3: What is the diameter range of GR1 titanium round bar?
A: GR1 titanium round bar is available in diameters from 3mm to 300mm. Length ranges from 3000mm to 6000mm. Custom sizes are available from GR1 titanium bar suppliers.

Q4: What is the chemical composition of GR1 titanium bar?
A: GR1 titanium chemical composition – C ≤0.08%, O ≤0.18%, N ≤0.03%, H ≤0.015%, Fe ≤0.20%, other each ≤0.1%, other total ≤0.4%, Ti balance. Purity is minimum 99.5% titanium.

Q5: What are the mechanical properties of GR1 titanium bar?
A: Tensile strength ≥240 MPa, GR1 titanium yield strength ≥138 MPa, elongation ≥24%, reduction of area ≥30%. GR1 titanium has the lowest strength but highest ductility among titanium grades.

Q6: What is the density of titanium grade 1 bar?
A: Titanium grade 1 density is 4.51 g/cm³. This low density gives GR1 titanium bar a high strength-to-weight ratio.

Q7: How does GR1 titanium bar compare to GR5 (Ti-6Al-4V)?
A: GR1 vs GR5 titanium – GR1 has lower strength but higher ductility and formability. GR1 is unalloyed (99.5% Ti), while GR5 contains aluminum and vanadium. GR1 is more cost-effective for applications requiring corrosion resistance and formability.

Q8: Is GR1 titanium bar suitable for medical applications?
A: Yes, medical grade 1 titanium (ASTM F67 grade 1) is used for surgical instruments, implants, and prosthetics due to its biocompatibility. GR1 titanium is non-toxic and does not cause adverse reactions in the human body.

Q9: Is GR1 titanium bar suitable for marine applications?
A: Yes, GR1 titanium bar is ideal for seawater applications including ship components, desalination plants, and offshore oil rigs. GR1 titanium offers excellent corrosion resistance in marine environments.

Q10: Is GR1 titanium bar suitable for chemical processing?
A: Yes, GR1 titanium for chemical processing is used in equipment such as GR1 titanium heat exchanger, reaction vessels, and piping systems. GR1 titanium reactor components benefit from excellent corrosion resistance.

Chemical composition analysis – verifies C ≤0.08%, O ≤0.18%, N ≤0.03%, H ≤0.015%, Fe ≤0.20%

Tensile testing – confirms ≥240 MPa tensile strength, GR1 titanium yield strength ≥138 MPa

Elongation testing – confirms ≥24%

Reduction of area testing – confirms ≥30%

Hardness testing – verifies grade 1 titanium hardness

Dimensional inspection – diameter (3-300mm) and length (3000-6000mm)

Surface inspection – polished finish verification

Ultrasonic testing – detects internal flaws (optional)

Eddy current testing – surface defect detection (optional)

Melting equipment:

VAR furnace (Vacuum Arc Remelting) – produces high-purity titanium ingot from titanium sponge

Forging equipment:

Radial forging machine – produces diameters from 3mm to 300mm

Hydraulic forging press

Heat treatment equipment:

Annealing furnace – produces annealed state for optimal ductility

Finishing equipment:

Polishing line – produces polished surface finish

Straightening machine – ensures straightness of GR1 titanium bar

Cutting machine – precision length cutting (3000-6000mm)

Quality control equipment:

Optical Emission Spectrometer – chemical analysis

Universal tensile testing machine – mechanical property verification

Hardness tester – grade 1 titanium hardness verification

Ultrasonic tester – internal flaw detection

Dimensional measurement tools – diameter and length verification

Surface inspection station – polished finish quality