Aperçu
HDC Manufacturing possède plus de dix ans d'expérience dans le domaine des composants métalliques sur mesure. Nous disposons de machines de précision à 4 axes et 5 axes des machines-outils, des centres d'usinage CNC automatisés et une équipe de conception et de production professionnelle. Nous pouvons vous proposer différents procédés d'usinage, notamment Fraisage CNC, Tournage CNC, découpe au laser, moulage de métal, et bien plus encore, pour fabriquer vos composants en titane grade 2 à la perfection, adaptés à vos besoins spécifiques.
What is Titanium Grade 2?
Le titane grade 2 est du titane non allié. Cela ressemble particulièrement à Titane Grade 1. Les gens l’appellent la « main-d’œuvre » du titane pur industriel. Comparé au grade 1, il présente une résistance supérieure et des performances de formage à froid exceptionnelles. C'est le premier choix dans de nombreux domaines d'application, tels que l'industrie aérospatiale, la production d'électricité, l'usinage chimique, etc.
La différence entre le titane grade 1 et grade 2
Grade 1 and 2 are majorly identical titanium grades but Grade 1 typically has a bit higher oxygen content and therefore shows slightly different properties. Grade 1 titanium has lower oxygen content offering slightly higher ductility and formability where as the Grade 2 titanium has slightly higher strength owing to its slightly higher oxygen content. Grade 1 has better ductility and weldability as well as an advantage with chemical processing; while grade 2 has better strength and is preferred in aerospace, medical, and automotive applications. In sum, select one between the two qualities relies on the exact application formability, tensile strength and other mechanical performance.
Quels sont les inconvénients du titane grade 2 ?
Though Titanium Grade 2 can also be considered in many ways a better choice, its disadvantages still exist. The drawback is that it is considerably weaker compared to titanium alloys like Grade 5, which mean limited use in cases that require high strength-to-weight ratios. Secondly, it can be more expensive than the other materials such as stainless steel or aluminum entities, and this might affect budget when constructing. Besides, Titanium Grade 2 can be difficult to machine due to a thermal conductivity and potential for work hardening, which results in prominent tool wear and machining costs. Again, while weldable, it needs stringent welding processes so as to prevent embrittlement or contamination which eventually can lead to impairment of its mechanical properties and corrosion resistance. Furthermore, its cold workability is rather limited, making cold-forming as well as shaping both difficult jobs and possible to lose the strength of the material by producing a crack. Despite the seamless nature of these joins, titanium grade 2 still comes with its share of limitations; yet, it remains very effective as far as corrosion resistance, biocompatibility, and lightweight usage are concerned in myriad of applications.
Composition chimique du titane grade 2
| Élément chimique | Contenu (%) |
| Titane, Ti | ≥ 98,9 |
| Fer, Fe | 0- 0.30 |
| Oxygène, O | 0-0.25 |
| Carbone, C | 0-0.08 |
| Azote, N | 0-0.03 |
| Hydrogène, H | 0- 0.015 |
L'influence d'une teneur moindre en d'autres éléments sur le titane de grade 2
(Lesser amounts of other elements only make a slight difference with Titanium Grade 2), as Grade 2 titanium is a commercial pure titanium alloy whose main component is titanium with minor amounts of other elements such as oxygen, nitrogen, hydrogen, carbon, and iron. Ti-6Al-4V is made up of these elements in a very very low concentration, and thus Ti-6Al-4V have no noticeable effects on the overall properties of Grade 2 titanium. At the same time, the metal is not pure and has foreign elements which may detrimentally affect the material’s mechanical properties, including strength, ductility, and corrosion resistance. Hence, quality control of impurities and alloying elements is fundamental in order to supply high-purity and the specifically desired properties Titanium Grade 2. It should be noted that Grade 2 titanium is normally selected for its outstanding corrosion resistance as well as its biocompatibility and low density as it is applicable in various industrial fields like aerospace, pharmaceutical, and chemical processing.
Propriétés mécaniques du titane grade 2
| Propriétés | Métrique | Impérial |
| Résistance à la traction | 485 MPa | 70300 psi |
| Limite d'élasticité | 345 MPa | 50000 psi |
| Coefficient de Poisson | 0.34-0.40 | 0.34-0.40 |
| Module d'élasticité | 105 – 120 GPa | 15200 – 17400 ksi |
| Allongement à la rupture | 28% | 28% |
| Dureté (HV) | 160-200 | 160-200 |
Propriétés physiques du titane grade 2
| Densité | Bêta Transus | Point de fusion | Conductivité thermique | Résistance élastique |
| 4.51g/cm³ | 915 °C | 1660 °C | 21,79 W·m-1 °C-1 | 0,53 µΩ/m |
Propriétés thermiques du titane grade 2
| Propriétés thermiques | Métrique | Anglais |
| Température de fusion | 325 J/g | 140 BTU/lb |
| CTE, linéaire | 8,60 µm/m-°C @Température 0,000 – 100 °C | 4,78 µpo/po-°F @Température 32,0 – 212 °F |
| 9,20 µm/m-°C @Température 0,000 – 315 °C | 5,11 µin/in-°F @Température 32,0 – 599 °F | |
| 9,70 µm/m-°C @Température 0,000 – 540 °C | 5,39 µin/in-°F @Température 32,0 – 1000 °F | |
| La capacité thermique spécifique | 0,523 J/g-°C @Température 20,0 °C | 0,125 BTU/lb-°F @Température 68,0 °F |
| 0,560 J/g-°C @Température 200 °C | 0,134 BTU/lb-°F @Température 392 °F | |
| 0,620 J/g-°C @Température 400 °C | 0,148 BTU/lb-°F @Température 752 °F | |
| 0,670 J/g-°C @Température 540 °C | 0,160 BTU/lb-°F @Température 1000 °F | |
| 0,690 J/g-°C @Température 600 °C | 0,165 BTU/lb-°F @Température 1110 °F | |
| Conductivité thermique | 16,4 W/mK | 114 BTU-po/h-pi²-°F |
| Point de fusion | <= 1665 °C | <= 3029 °F |
| Liquide | 1665 °C | 3029 °F |
| Bêta Transus | 913 °C | 1680 °F |
Méthodes adaptées au traitement du titane de grade 2
The processing of Titanium Grade 2 utilizes a set of techniques depending on its characteristics. Machining (turning and milling) is widespread but needs to take its time as the material has low thermal conductivity. Only welding technics such as GTAW or EBW lead to risks for contamination and oxidation of the material, thus, precautions have to be taken. Forming processes which can be cold and hot can be used, additional annealing might be necessary to achieve ductility. Heat treating processes (annealing and stress relief) are employed to develop desirable mechanical properties. Surface modifications, such as polishing and anodizing, provide increased corrosion resistance and appearance. By contrast, machine manufacturing techniques like SLM and EBM are very flexible with structures with complex geometries. These methods are typically used for the fabrication of parts for aerospace, medical, and chemical apparatus.
Applications du titane grade 2
Extensive use of Titanium Grade 2 is demonstrated through its remarkable features in various industries. It has been used by the aerospace industries in airframe structures and engine parts, the healthcare sector due to its biocompatibility and chemical processes for corrosion-resistant equipment. Besides, it is also used in marine situations, construction buildings, and sports gears because it is durable and resistant to electrochemical oxidation. In general titanium alloy Grade 2 stands out as an irreplaceable material in the industries such as aerospace that need lightweight, corrosion-resistant and have high-performance materials.
