OEM Gr9 Titanium Bar Supplier for Custom Medical Components - INT
2026-11-04 16:11:50
Sellers should stock OEM Gr9 Titanium Bars for specialised medical products. For your store, this bar should have the proper diameter, finish, and length. Baoji INT Medical Titanium Co., Ltd. sells Gr9 Titanium Bar Dia 8mm with a density of 4.48 g/cm³. The bars may be polished, pickled, or custom-made. You may trim them to any length. EU CE, ISO 9001:2015, and ISO 13485:2016 make all INT goods safe. This guidance was intended for instrument and part makers that require clear information and quotations before sending an RFP. Let's start with metal.
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Grade 9 Titanium Bar Dia 8mm: Specifications and Material Properties
Chemical Composition and Density
Gr9 is Ti-3Al-2.5V. That indicates it contains 2.5%–3.5% aluminium, 2%–3% vanadium, and the rest titanium. Limits apply to iron, hydrogen, oxygen, carbon, nitrogen, and hydrogen. A circular 8 mm bar weighs about 225 g/m³ (44.8 g/cm³). A 316 stainless steel bar of the same size weighs about 400 grams due to its 8 grams per centimeter³ density. That room is crucial for surgeons holding handles for hours. Repeatedly shipping the same item saves truck space. Buyers should never trust generic tables. Read the mill certificate instead.
Strength, Fatigue, and Corrosion Behavior
In other words, Gr9 is somewhere between Grade 5 and commercially pure titanium. The lowest annealed strengths, according to ASTM B348 are about 620 MPa for tensile and 483 MPa for yield. That's almost 1.8 times the least amount of stress Grade 2 can handle, which is 345 MPa. They also have an elastic modulus that is almost half that of steel, which is another interesting fact about them. These changes help a shaft spring back after being bent.
The data we have on the product shows that it is strong for its weight, doesn't break down when stressed over and over, and won't rust after being used for a long time. If the material has been annealed, cold-worked, or stress-relieved, the real numbers will be different. Make sure you look at the certificate for each lot after you lock a design.
Standards, Surface Finish, and Tolerance
Our item sheet discusses ISO 5832-3, ASTM B348, and ASTM F136. Each article discusses a different product, alloy, or purpose. Discuss the grade and order standard with us and put it down on your order. You may polish, pickle, or make to order the surface and select any length. CNC lathe collet feeding requires a precise diameter tolerance. In the RFQ, provide tolerance, straightness, and ovality limitations. First batches are usually rejected because the bar is too near to the drawing for tools. Starting with a clear specification prevents this.
Choosing Between 8mm Grade 9 Titanium and Alternative Materials
Gr9 Versus Grade 5
Grade 5 (Ti-6Al-4V) is stronger and requires more labour to form. Gr9 Titanium Bar Dia 8mm is a typical specification of Gr9 titanium. Although lower in strength, Gr9 bends and shapes better when cold. It welds well. Gr9 is ideal for room-temperature bending, springing, and shaping. Surgical tool shafts must be supple enough to stretch back to their original form but not excessively soft. Grade 5 may be preferable for heavy-duty pins and fasteners. Instead of following a habit, match the grade to the load scenario. The stronger alloy may take longer to produce and cost more to acquire equipment, but it adds little value.
Gr9 Versus Stainless Steel
Due to its availability and low cost per kilogram, many instrument makers still utilise it. Titanium, unlike steel, is non-magnetic and has a density of 4.48 g/cm³ against 8 g/cm Chloride conditions reduce pitting. Since prices are moved about in this sector, compare the cost per completed part instead of kilogram. A lighter instrument will make your hands feel better, and titanium can be steam-cleaned numerous times. When money is tight and weight is irrelevant, stain-less steel wins. Run a tiny piece through your lines to cut and polish. Compare material cost to scrap and cycle time.
Gr9 Versus Aluminum, and a Simple Decision Matrix
Aluminium alloys like 6061 are cheaper. Their density is around 2.7 g/cm³. They're less resistant to temperature fluctuations and wear, and cleaning solvents may destroy them. Make a basic matrix to compare all four alternatives. Write down load, fatigue, sterilisation process, machining behaviour, surface polish, regulatory requirements, lifespan cost, and supply continuity. Each section should be scored between 1 and 5, with the most essential given greater weight. The exercise is 10 minutes. When a cheap bar breaks and costs a customer, it's obvious that it didn't manufacture the cheapest completed product.
Applications of Gr9 Titanium Bar Dia 8mm in Custom Medical Components
Instrument Shafts, Handles, and Working Ends
Makers of surgical instruments may employ 8mm bar to produce forceps shafts, retractor handles and holders. Tin won't rust after numerous autoclave heatings, and Gr9 is light and springy. Drill, spin and grind the bar, then polish the exterior. Tin doesn't conduct heat well, thus the tool edge heats up. Sharp tools, constant feeds, and plenty of coolant are essential. Make sure every design works before sending it to production since it relies on part form, cleaning, and sterilisation.
Orthopedic and Dental Feedstock
This bar may be utilised for dental structures and body rods, pins and screws, according to product description. We offer just this titanium bar. Your team sets, tests, and follows guidelines for their work. Implant usage varies on grade, standard, and regulatory process. Before choosing material, check with your quality team for guidelines. Gr9 is often used for structural pieces that won't be implanted and Ti6Al4V ELI for inserted portions. INT has both families, so you may discuss both alternatives.
Medical Equipment and Prototypes
The Gr9 Titanium Bar Dia 8mm goes beyond hand tools. Precision medical equipment spacers, connections, brackets, and pins may be made using it. Non-round bars exist. To convert solid pieces, use bar. Tube works for hollow shafts. Wire works for springs and tiny fasteners. You may test the machining on a small scale before ordering more. Low-volume orders reduce inventory expenses. Keep prototype certifications because pairing prototype and repeat order records simplifies customer audits. If your catalogue offers several sizes, ask whether you may divide an order.
OEM Customization and Quality Assurance for Grade 9 Titanium Bar
From Drawing to Material Specification
Any OEM process begins with drawing. The bar's diameter, length, cut tolerance, surface quality, straightness, condition, inspection, and packing should be described. Match the item's shape to the standard. ASTM B348 discusses titanium bars and billets. If you want, we may polish, pickle, or customise lengths and surfaces. Make sure a sample and first-article outcomes are good before ordering production. After then, utilise the authorised sample record for subsequent batches. This practice keeps everyone secure since each cargo has a purpose.
Traceability and Inspection
By heat number and lot number, each bar's purchase order, packing list, mill certificate, and inspection report should be available. Look for length, end condition, burrs, ovality, straightness, diameter, and surface faults while examining specifications. ISO 9001:2015, ISO 13485:2016, and EU CE certified it. To ensure batch consistency, our crew monitors quality throughout manufacturing. Any supplier may provide lot-specific certifications, which you should compare to the bar markings. Regardless of your customer's certification, you must test the final product.
Packaging and Export Documents
Ti bars are likely to get scratched and mixed up when they are shipped across borders. Good packaging keeps things separate, keeps them safe from damage and water, and labels each bundle with its heat number. Make sure that the labels on the material certificate, packing list, and invoice all match up before the package leaves the factory. Paperwork that doesn't match can slow down both customs and your own inspection when you come in.
A lot of buyers for Gr9 Titanium Bar Dia 8mm also want an EN 10204 3.1 material test certificate, which lists the heat number, chemical and mechanical properties, and more. For people in the US who want to buy, make sure the quote includes the Incoterms and the port of destination. This way, everyone knows right away who is in charge of duty and freight.
How to Buy Gr9 Titanium Bar Dia 8mm and Why Buyers Choose INT
What to Include in Your RFQ
Name the grade (Ti-3Al-2.5V), 8mm diameter, tolerance, standard, material condition, surface finish, lengths, amount, yearly demand, certifications required, packing, destination, target date, and grade. Tell them whether you need stock bar, cut-to-length material, or bespoke work. Choosing the MOQ, lead time, and pricing will determine it. Price depends on cost, quantity, tolerance, finishing, testing, cutting, packing, goods, and Incoterms. Picture them if you have. Full RFQs acquire quotes quicker and more correctly and save both parties a lot of emails.
Comparing Suppliers on More Than Price
Instrument makers earn little money, thus price matters. Still, a cheap bar that fails the test costs more than a fair-priced one. See whether they have the proper certifications, can supply samples, deal with small quantities, allow repeat orders, and how fast engineers can answer technical issues. Before ordering, get a sample and cut, grind, and polish it using your own machinery to test it. Many consumers switch to monthly purchases after that. Ask the supplier how it manages split orders of various sizes and maintains monthly lead times.
Why INT
In 2003, Mr. Zhan Wenge opened Baoji INT Medical Titanium Co., Ltd. He's been in the titanium business for over 30 years. We have rods, wires, plates, and forged materials made of pure titanium, Ti6Al4V ELI, and titanium alloy that can be used in medicine. Many of our clients have been with us for over ten years. Our team can look over your plans, cut to the exact lengths you need, help you pick a finish, line up your papers, package them, and make plans for future orders. The titanium materials come from us. It is up to your team to make sure the finished parts are safe and follow the rules for the medical use they were made for.
Conclusion
There is 4.48 grams per cubic centimeter for Gr9 Titanium Bar Dia 8mm (Gr9 Ti-3Al-2.5V) round bar. It is moderately strong, malleable, can be cold shaped, and doesn't rust. Because of these qualities, it can be used to make prototypes, instrument shafts, handles, spacers, and pins. It's not as strong as Grade 5, but it's simpler to shape. Even though it costs more, it's lighter and less likely to pit than stainless steel. It minimizes wear and inhibits bacterial colonization.
There is less risk at every stage of the order process when there is a clear drawing, a named standard, lot tracking, sample approval, and export documents that match. When someone buys something, they should check the lot's certificates and the price per finished part. They should also test it themselves to make sure it is safe for medical use.
FAQ
What is Gr9 Titanium Bar Dia 8mm?
It is an 8mm round bar made of Ti-3Al-2.5V that weighs 4.48 g/cm³. The exact qualities depend on the standard, the material's state, and the certificate.
How does Gr9 compare with Grade 5?
It's not very strong, and Gr9 is better at being able to bend and shape when it's cold. It is better for Grade 5 to have a tensile strength above 895 MPa.
Can I order custom lengths and finishes?
Yes. We can polish, pickle, or make a custom length and finish for your order if you ask. We'll let you know the MOQ and lead time for your order after you send us your drawing.
Which documents come with the bar?
There is a certificate sent with it that lists the heat number, chemistry, and mechanical properties of each lot. EU CE, ISO 13485:2016, and ISO 9001:2015 have all given INT their stamp of approval. You still need to prove that your final medical use is real.
Request a Quote for Gr9 Titanium Bar Dia 8mm from Baoji INT Medical Titanium Co., Ltd.
Want to buy Gr9 Titanium Bar Dia 8mm from a company that responds quickly and keeps track of everything? Before you send your order, email it to export@tiint.com with your grade, tolerance, length, quantity, and drawings. They will then look over your needs. The ISO 9001:2015, ISO 13485:2016, and CE mark our light, corrosion-proof bars. You can order them in any length or finish. Visit inttitanium.com to find out more about the item.
References
1. ASTM B348 Standard Specification for Titanium and Titanium Alloy Bars and Billets, ASTM International, 2019
2. ISO 13485 Medical Devices: Quality Management Systems, International Organization for Standardization, 2016
3. Materials Properties Handbook: Titanium Alloys, ASM International, 1994
4. Titanium: A Technical Guide, 2nd Edition, ASM International, 2000
5. Titanium and Titanium Alloys: Fundamentals and Applications, Wiley-VCH, 2003
6. Titanium, 2nd Edition, Springer, 2007









