ASTM F67 Grade 1 Unalloyed Titanium Plate & Sheet
- Standard: ASTM F67
- Grade: Grade 1 (Unalloyed Titanium)
- UNS: R50250
- Supply form: Plate, sheet or strip
- Condition: Annealed, as ordered
- Thickness: 0.3–60 mm; Customizable up to 100 mm
- Width: 400–2000 mm
- Length: 1000–6000 mm
Customizable sizes are available, while specific product parameters should be confirmed per the applicable standard edition and order.
Product Overview
ASTM F67 Grade 1 unalloyed titanium plate, sheet and strip are wrought commercially pure titanium flat products used to manufacture surgical implants, UNS R50250. Grade 1 has the lowest strength and greatest ductility and cold formability among the four unalloyed grades in ASTM F67; its properties are controlled principally through limits on oxygen, iron, nitrogen, carbon and hydrogen.
The material offers good biocompatibility, resistance to physiological corrosion and fabricability for medical-device raw material requiring high ductility or complex forming. ASTM F67 compliance applies to the raw material; it does not mean a finished implant has completed design verification, biological evaluation, cleaning, sterilization or regulatory approval.
| Specification | Cold-Rolled Titanium Sheet | Hot-Rolled Titanium Plate |
| Standard | ASTM F67 | |
| Grades | Gr1 | |
| Thickness | 0.3–4.75 mm | 5–60 mm; Customizable up to 100 mm |
| Standard Stock Thicknesses | 0.5 / 0.6 / 0.8 / 1.0 / 1.5 / 2.0 / 2.5 / 3.0 / 4.0mm | 5 / 6 / 8 / 10 / 12 / 15 / 20 / 25 / 30 / 35 / 40 / 50 / 60 mm |
| Width | 400–1200 mm | 400–2000 mm |
| Length | 1000–3000 mm | 1000–6000 mm |
| Note | Sheet Thickness ≤ 4.75 mm | Medical Titanium Plate & Sheet Typical thickness 0.5–20 mm; width ≤1200 mm; polished or pickled surfaces available. |
Medical-use boundary: ASTM F67-compliant sheet and plate is medical-device raw material, not an approved finished implant. The device manufacturer remains responsible for design, manufacturing, cleaning, sterilization, biological evaluation, risk management and regulatory compliance.
Main Characteristics
- High ductility and formability: Annealed Grade 1 has high specified elongation and is suited to cold bending, pressing, spinning and complex forming.
- Controlled unalloyed chemistry: No nominal alloying addition is made; O, Fe, N, C and H are controlled to balance strength, ductility, toughness and processing consistency.
- Good biocompatibility: A stable TiO2 passive film helps limit ion release in physiological environments. The finished device still requires applicable biological evaluation.
- Good corrosion resistance: Performance is generally excellent in saline, body fluids and many chlorides, but crevices, fretting corrosion, dissimilar-metal coupling and fluoride exposure require device-level evaluation.
- Good weldability: Qualified inert-gas, laser or resistance welding may be used; hot metal must be protected from O, N, H and C contamination.
- Lower strength than higher grades: Grade 1 is selected for ductility, not maximum load capacity. Load-bearing implants require design verification using actual load, fatigue, geometry, surface and service-life conditions.
Chemical Composition
The following limits apply to ASTM F67 Grade 1. Values are mass percentages. Formal acceptance is governed by the contract edition and producer certified report.
| Element | ASTM F67 Grade 1 requirement |
| Nitrogen, N | ≤0.03% |
| Carbon, C | ≤0.08% |
| Hydrogen, H | ≤0.015% |
| Iron, Fe | ≤0.20% |
| Oxygen, O | ≤0.18% |
| Residual elements, each | ≤0.10% |
| Residual elements, total | ≤0.40% |
| Titanium, Ti | Balance |
Technical references: ASTM F67 official scope and producer data for Grade 1 / UNS R50250.
- Oxygen and iron: Oxygen is an important interstitial strengthener in unalloyed titanium; iron also raises strength, but higher content can reduce ductility. Grade 1 uses lower limits to retain formability.
- Nitrogen, carbon and hydrogen: These elements require strict control. Excess content raises hardness and reduces ductility; hydrogen may promote hydrides and embrittlement.
- Residual elements: Each and total limits must be controlled. Testing only the principal impurities does not satisfy the full chemistry requirement.
- Titanium content: The specification states Titanium: Balance. A nominal purity claim does not replace heat-specific chemical analysis and the material report.
Mechanical Properties
ASTM F67 specifies room-temperature tensile properties for Grade 1 wrought products. Flat-product specimens are generally taken longitudinal to the rolling direction; formal acceptance must follow the applicable thickness, sampling direction, specimen form, condition and official standard table.
| Property | ASTM F67 Grade 1 annealed reference | Note |
| Ultimate tensile strength | ≥240 MPa | Official applicable product table governs |
| 0.2% yield strength | 170-310 MPa | A specified range, not one minimum |
| Elongation | ≥24% | Subject to size and specimen conditions |
| Reduction of area | Normally not applicable to flat tensile specimens | Confirm against the applicable product/specimen requirement |
ASTM F67 Grade 1 Annealed sheet and plate Reference Requirements
| Property | Grade 1 annealed reference |
| Ultimate tensile strength | Minimum 240 MPa |
| 0.2% yield strength | 170-310 MPa |
| Elongation | Minimum 24% |
| Elastic modulus | Typical approx. 105 GPa |
Important: Mechanical properties must be applied with plate/sheet thickness, rolling direction, specimen form and the official table. Generic website data cannot replace contract acceptance, and ASTM F67 raw-material compliance alone does not qualify a finished implant.
HTN Supply and Quality Documentation
HTN organizes ASTM F67 Grade 1 unalloyed titanium plate, sheet and strip supply to customer purchase requirements. Material is produced by qualified titanium-mill resources. Original mill reports, heat traceability, chemistry and mechanical records can be supplied as agreed. HTN reviews edition, heat number, thickness, width, length, tolerance, condition, rolling direction, surface, flatness and packaging, and can arrange independent retesting, cut-to-size service, clean packaging and third-party inspection.
Typical Applications
- Forming stock for cranio-maxillofacial, orthopedic or trauma-fixation plates and related parts after device-level validation;
- thin sheet or forming stock for dental, cranio-maxillofacial and restorative devices;
- surgical-instrument parts requiring high ductility, deep drawing or complex cold forming;
- raw material for non-high-load implant components, shells, meshes and supports;
- medical cover plates, connection tabs, locating pieces and support parts;
- precision plate and sheet parts cut, formed or machined to customer drawings;
- research, prototype and custom medical-device material;
- international projects when ISO 5832-2, regulatory and customer requirements are also met.
Application boundary: ASTM F67 Grade 1 sheet and plate is raw material for surgical implant applications, not an approved finished implant. The final device must separately meet applicable regulations, design validation, biological evaluation, cleaning, sterilization and traceability requirements.
Fill in the form below and our team will be happy to assist you
Fabrication and Machining Characteristics
Rolling, Cutting and Dimensional Control
Grade 1 plate and sheet may be cut by shearing, sawing, waterjet or validated machining methods. Titanium still exhibits low thermal conductivity, tool adhesion and elastic recovery; use sharp tools, rigid support, ample coolant and controlled feed, then remove burrs and contaminated edges.
Cold working
Grade 1 has excellent cold formability and is suitable for bending, stamping, deep drawing, spinning and roll forming. Actual limits depend on thickness, rolling direction, grain size, surface condition, bend radius and intermediate annealing.
Annealing and heat treatment
Annealing restores ductility, lowers residual stress and stabilizes equiaxed alpha microstructure. Unalloyed titanium is not conventionally age hardened; substantial strengthening comes mainly from cold work. Qualified atmospheres are required to prevent oxidation and alpha case.
Welding and joining
Qualified GTAW/TIG, laser or resistance welding may be used. Clean thoroughly before welding and fully shield the pool, root and hot heat-affected zone. Device welds require strength, fatigue, corrosion and cleanliness validation.
Typical Physical Properties
The following are typical Grade 1 values near room temperature; unless explicitly specified, they are not mandatory lot-acceptance values of ASTM F67 .
| Physical property | reference value |
| Density | Approx. 4.51 g/cm³ |
| Elastic modulus at room temperature | Approx. 105 GPa |
| Thermal conductivity at 21°C | Approx. 16 W/(m·K) |
| Mean CTE, 20-100°C | Approx. 8.6×10⁻⁶/K |
| Melting temperature reference | Approx. 1670°C |
| Poisson’s ratio | Typically approx. 0.34 |
| Crystal structure at room temperature | HCP alpha titanium |
| Magnetism | Essentially non-magnetic |
| Strengthening mechanism | Mainly cold work; not conventionally age hardenable |
| Specific heat at room temperature | Typically approx. 520 J/(kg·K) |
Physical-property reference: Producer data for Grade 1 / UNS R50250. Values vary with temperature, microstructure, orientation, cold work and heat treatment.
Corrosion Resistance
Grade 1 develops a spontaneous, renewable TiO2 passive film and generally resists saline, body fluids and many chloride environments. Actual device performance also depends on surface treatment, crevices, micromotion, dissimilar metals, electrochemical conditions and sterilization or cleaning residues.
Environments in Which Grade 1 Generally Performs Well
- Saline and many simulated-body-fluid environments;
- humid air and high-purity water;
- neutral chloride solutions;
- many oxidizing environments;
- properly controlled cleaning and passivation processes;
- many medical-device sterilization processes after device validation;
- long-term tissue contact without fretting;
- validated dental and orthopedic device environments.
Environments Requiring Careful Evaluation
- Fluoride cleaners, hydrofluoric acid or high-fluoride oral conditions;
- local acidification in oxygen-starved crevices;
- combined fretting, wear and corrosion;
- galvanic coupling with unsuitable dissimilar metals;
- cathodic hydrogen charging or improper electrochemical treatment;
- strong reducing acids;
- hot concentrated salts or unusual disinfection chemicals;
- areas containing particles, residues or surface damage;
- new uses lacking device-level corrosion and biological validation.
Engineering caution: Biocompatibility and body-fluid corrosion performance are not determined by grade alone. Roughness, cleanliness, micromotion, wear, crevices, dissimilar metals, fluoride exposure and sterilization residues can affect the final device.
Typical Industry Manufacturing Route for ASTM F67 Grade 1 Titanium sheet and plate
- Raw-material selection and charge preparation: Select qualified high-purity sponge and strictly controlled clean revert, closely controlling O, Fe, N, C, H and residuals.
- Electrode preparation: Homogenize, compact and weld a consumable electrode while avoiding iron particles, oil, moisture and foreign contamination.
- Vacuum melting and ingot production: VAR or another qualified vacuum route is commonly used. ASTM F67 specifies finished-material requirements; special melt count or raw-material restrictions must be stated in the order.
- Ingot conditioning and breakdown: Crop unsuitable ends, remove surface defects, and forge or roll to break down the cast structure.
- Hot rolling of slab: Hot roll the conditioned slab to intermediate thickness under controlled temperature, managing deformation uniformity, grain structure, scale and edge quality.
- Annealing and surface conditioning: Apply the qualified anneal, remove scale and alpha case, and control hydrogen pickup and iron contamination.
- Cold rolling, leveling and finishing: Cold roll or finish roll as required, then level, shear, grind, polish or pickle to meet the ordered thickness, tolerance, flatness, dimensions and surface condition.
- Cleaning: Use validated mechanical or chemical cleaning to prevent oil, abrasive, iron and pickling residues. Final implant cleaning remains the device manufacturer responsibility.
- Inspection: Verify chemistry, tensile properties, thickness, width, length, flatness, surface and appearance. Ultrasonic testing, grain size, microstructure or special surface requirements must be ordered when required.
- Identification, packaging and traceability: Maintain heat, lot, plate/sheet and report correspondence. Use interleaving paper, protective film or other agreed clean packaging to prevent scratches, distortion and cross-contamination.
Manufacturing and inspection note: ASTM F67 specifies material requirements, but special melt count, ultrasonic class, microstructure, grain size, tight flatness, ground or polished surface, clean packaging, EN 10204 3.1 documentation and third-party inspection must be confirmed in the purchase order.
