ASTM F67 Pure Gr3 Titanium Bar
Standard: ASTM B348,ASTM F67,ASME SB 348
Grade 3 pure titanium bar UNS code: UNS R50550
Diameter mm(inch): 6.0 - 114mm or customized
Supply Status: Annealed
Length mm(foot): 10 - 6000mm or customized
Processing Technology: Hot Rolling and Annealing
Core Application:Medical field
Description
Technical Parameters
About Products
ASTM F67 is the official ASTM standard for unalloyed commercially pure (CP) titanium for surgical implant applications.
Gr3 titanium bar offers a unique balance of strength,formability,and corrosion resistance between Gr2 and Gr4.Its intermediate properties make it ideal for applications requiring higher mechanical performance than Gr2 without compromising the inherent benefits of pure titanium.It has higher tensile and yield strength than Gr1 and Gr2(minimum tensile strength:450MPA)
Chemical Composition (wt.%, ASTM F67 official limit)
| Element | Maximum Content |
| Ti | Balance (≥99.2) |
| O (Oxygen) | 0.35% |
| Fe (Iron) | 0.30% |
| C (Carbon) | 0.08% |
| N (Nitrogen) | 0.05% |
| H (Hydrogen) | 0.02% |
Mechanical Properties
| Property | Metric (MPa) | Imperial (ksi) | Requirement |
| Ultimate Tensile Strength (UTS) | ≥450 | ≥65 | 30% stronger than Gr2 titanium |
| 0.2% Offset Yield Strength | ≥380 | ≥55 | Higher load-bearing capacity than Gr2 |
| Elongation (4D specimen) | ≥18% | - | Retains good ductility for machining & forming |
| Reduction of Area | ≥30% | - | Excellent toughness |
| Density | 4.51 g/cm³ | - | 60% weight of steel |
| Elastic Modulus | 103 GPa | - | Matches human bone modulus better than stainless steel |
Specifications
| Diameter mm(inch) | Tolerance mm(inch) |
| 6(0.236)-14(0.55) | ±0.18(±0.007) |
| 15(0.59)-35(1.39) | ±0.30(±0.012) |
| 36(1.42)-50(1.97) | ±0.40(±0.016) |
| 51(2.01)-120(4.72) | ±0.79(±0.031) |
| Diameter mm(inch) | length (mm) | ||||
| 6(0.236)-14(0.55) | 1000 | 2000 | 3000 | 4000 | 5000 |
| 15(0.59)-35(1.38) | 1000 | 2000 | 3000 | 4000 | 5000 |
| 36(1.42)-50(1.97) | 1000 | 2000 | 3000 | 4000 | 5000 |
| 51(2.01)-120(4.72) | 1000 | 2000 | 3000 | 4000 | 5000 |
Comparison with Other ASTM F67 Pure Titanium Grades
| Grade | UTS Min | Core Feature | Best Scenario vs Gr3 |
| Gr1 | 240 MPa | Softest, highest ductility | Thin sheet forming |
| Gr2 | 345 MPa | Medium soft, most common general medical | Simple low-load implants |
| Gr3 | 450 MPa | Medium-high strength, balanced ductility | Load-bearing bone/dental implants |
| Gr4 | 550 MPa | Highest strength, lower ductility | Heavy-load fixation parts |
Our Advantages
1.The leading manufacturer from Baoji,China.
2.More than 20 sets processing machine for the complete processing chain.
3.More than 10 sets analysis instruments to supply high quality products.
4.The third-party inspection can be adopted.
5.Provide competitive price and reliable after-sales service.
6.Comprehensive range of express delivery options, include sea freight,land-sea combined transport and air freight.
01
High Quality
02
Advanced Equipment
03
Professional Team
04
Custom Service
Core application in Medical Field
It is the preferred material for permanent medical implants due to its superior biocompatibility (no rejection by human tissues, non-toxic, non-allergenic).
Key uses include orthopedic implants (spinal fixators, bone plates, intramedullary nails) and dental implants (root analogs, abutments), which require long-term integration with human bones anGr3 Titanium for Permanent Medical Implantsd resistance to bodily fluids.Gr3 Titanium for Permanent Medical Implants
fAQ About ASTM F67 Pure Gr3 Titanium Bar
- Gr2: Best ductility, slightly lower strength, excellent corrosion resistance
- Gr3: Slightly lower corrosion resistance than Gr2, higher strength
Gr4: Highest strength among pure Ti, highest oxygen, slightly reduced ductility
All three grades maintain passive TiO₂ film for long-term implant service.
- Ultrasonic testing (UT): detect internal voids, cracks, segregation
Eddy current testing (ET): surface flaw inspection for small-diameter bars
Macro/microstructure etch inspection to eliminate segregation and alpha case.
Gr3 CP Ti: unalloyed, no aluminum/vanadium, softer, better tissue compatibility, lower fatigue limit.
- Ti-6Al-4V ELI: alloyed, much higher strength, for heavy load-bearing implants (femoral stems)
If biocompatibility priority outweighs maximum strength, select Gr3 per ASTM F67.
Contact us
Ruihang Group mainly produces Titanium and Titanium Alloy products with the complete industry chain,including smelting,forging, straightening,rolling,surface treating,testing process. We have the sufficient inventory on hand for your requests. For more details,please reach us to the email: Sam.Rui@bjrh-titanium.com
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