Baoji Dingding Titanium | Titanium Alloy Straight Wire (Special for Bone Nails/Needles) - Medical Grade Precision Adaptation Solution

As the core supporting product of Baoji Dingding Titanium's deep cultivation in the medical field, titanium alloy straight wire focuses on orthopedic implantation and minimally invasive surgical instrument scenarios. It is refined using TC4 medical titanium alloy (compliant with ASTM F136 standard), with "high dimensional accuracy, excellent biocompatibility, and stable mechanical properties" as its core advantages, specially designed for medical devices such as bone screws, bone needles, Kirschner wires, and ultrasonic knife rods. The product has passed ISO 13485 quality management system certification and NMPA medical device registration related qualifications, providing long-term supporting services for leading medical device enterprises such as Weigao and Lepu. The annual production capacity has exceeded 800 tons, helping to upgrade orthopedic surgery precision and minimally invasive techniques.

1、 Core product parameters and performance advantages

（1） Accurate specification configuration

-Diameter range: 3-7mm (covering mainstream orthopedic instrument size requirements)

-Accuracy level: H8 tolerance (diameter tolerance controlled within ± 0.015mm)

-Length specification: 2800-3000mm (customizable cutting as needed to reduce material waste)

-Material grade: TC4 medical titanium alloy (Ti-6Al-4V), some scenes support TA3G pure titanium customization

（2） Medical grade core advantages

1. Excellent biocompatibility: free of sensitizing elements such as nickel and chromium, tissue rejection rate after implantation ≤ 0.03%, surface stable oxide film can promote bone integration, in line with GB/T13810-2017 medical titanium material standard, suitable for long-term implantation needs.

2. Precise mechanical matching: tensile strength ≥ 1100MPa, yield strength ≥ 960MPa, elastic modulus of about 110GPa, highly compatible with the mechanical properties of human cortical bone, avoiding "stress shielding effect" and reducing the risk of secondary injury after surgery.

3. Ultra high dimensional accuracy: Adopting the "multi pass cold rolling+precision straightening" process, the straightness is ≤ 0.1mm/m, the surface roughness Ra is ≤ 0.8 μ m, providing precise substrates for subsequent machining (thread processing, tip grinding), and the qualification rate of instrument forming is increased to 99.6%.

4. Stable processing performance: Excellent material uniformity, grain refinement to 10-15 μ m, can meet various processing needs such as laser cutting, precision grinding, welding, etc., without cracking or deformation hazards, suitable for mass production.

2、 Core application scenarios and adapter equipment

3、 Medical grade customized services and delivery guarantee

-Customization of specifications: Supports any size adjustment within a diameter of 3-7mm, and the length can be cut as needed (minimum order of 100mm). Special precision requirements (such as H7 level) can be specially developed.

-Processing support: We provide value-added services such as surface passivation, ultrasonic cleaning, and sterile packaging. Pre processing can be carried out according to customer needs (such as end face chamfering and rough grinding) to shorten the production cycle of equipment.

-Testing support: Each batch of products comes with a complete testing report, including component analysis (ICP-MS), mechanical properties, dimensional accuracy, surface quality testing data, and supports third-party medical grade testing (such as biocompatibility testing).

-Delivery time: Regular specifications take 7-10 days to deliver, customized specifications take 15-20 days to deliver, and bulk orders can provide exclusive warehousing and supply chain support to ensure production continuity.

4、 Medical grade quality control system

1. Raw material traceability: Medical sponge titanium that meets the GB/T2524-2019 standard is used, with a purity of ≥ 99.7% and strict control of impurity elements. Traceability files and analysis reports are attached to each batch of raw materials.

2. Production control: Production is carried out in accordance with the requirements of the medical device production management quality system ISO13485 to avoid cross contamination with industrial grade products. The production process records process parameters in real time to achieve full process traceability.

3. Comprehensive testing: Equipped with high-end equipment such as direct reading spectrometers, universal material testing machines, and laser calipers, the focus is on testing the composition, mechanical properties, dimensional accuracy, and surface quality to ensure compliance with medical grade requirements.

4. Qualification guarantee: Through ISO 13485 medical device quality management system certification, the product meets domestic and foreign medical standards such as ASTM F136 and GB/T13810, and can adapt to global medical device production needs.

-Collaboration Consultation: Send "Equipment Type+Specification Requirements+Purchase Quantity" to 530975155@qq.com Provide technical solutions within 2 hours and detailed quotations within 4 hours; New customers can apply for free 100mm length samples for performance testing and processing verification.